Local cable network and ancillary works delivery

1. Scope and Applicability

This rule covers physically delivered local electricity, communication and television cable works, together with local distribution transformer stations, substations and transmission towers including antennas. A delivery can be an identified line segment, station or bounded combination; establish identity from measured boundaries, configuration and acceptance state. A classification code alone does not establish identity. The UN classification notes, pp. 280–281, support this scope.

The method addresses the traceable relationship between construction quantities and the accepted entity: duct/trench and foundations, placement/jointing, station/tower installation, reinstatement and shared equipment attribution. Cable, conductor and equipment factory-gate methods provide upstream interfaces only. Exclude long-distance communication/transmission networks, complete railway-specific electrification, cable manufacture itself, standalone installation services and network operating services. Local network function and boundaries, rather than voltage or length alone, distinguish the category.

Select routes from real construction records; a low-voltage cable case cannot represent the whole category. Construction-record closure and acceptance are required; underground, aerial, station/tower and submarine work are conditional on configuration. The atomic rows below do not establish exhaustive material coverage for every project: actual additional components, fuels, gases, wastes, pollutants and ecological disturbances require separate rows and evidence before claiming complete inventory coverage.

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.constructions-and-construction-services.constructions.local-cable-network-works
classification_refs	CPC 3.0 53252; context only / 仅分类背景
covered_products	Accepted local power, communication or television cable networks and actual ancillary station/tower works
excluded_products	Long-distance networks; complete railway electrification; factory cable products; standalone construction services; operating services
representative_product	An endpoint- and circuit-defined local cable segment with its actual ducts, joints, supports and accepted reinstatement interfaces
production_route	Actual underground, aerial, station/tower and local submarine branches; no assumption that all occur
market_state	Installed physical entity after actual construction and acceptance; declare energised or ready-only state

3. Reference Flow

Field	Value
What	An installed power or communication connection between declared local endpoints, or a configured local distribution-station/tower entity
How much	One independently accepted entity; additionally declare measured route m, cable m by circuit, duct count, station m2, tower height m and actual rated capacity as applicable
How well	Real as-built geometry, component specifications, joint/bonding records, applicable electrical/optical tests and structural inspection; this PCR grants no compliance or energisation approval
How long or cycle	One actual construction-to-handover cycle with dates; no prescribed operational lifetime
reference_flow_link	reference_product_local_cable_works

Field	Value
Reference amount	1
Reference product flow	Delivered local cable network works
Reference flow property	Number of items 01846770-4cfe-4a25-8ad9-919d8d378345
Reference unit group	Units of items 5beb6eed-33a9-47b8-9ede-1dfe8f679159
Reference unit	item
Required qualifiers	entity ID and site; local network purpose and endpoints; actual underground/aerial/station/tower/submarine configuration; measured geometry; actual voltage/capacity or fibre/television specification; new and retained components; as-built and acceptance state; construction dates; start/handover interfaces; excluded stages; upstream coverage

Here item is a display alias of Item(s) in the public item unit group and counts the same complete accepted entity. Length, area and capacity are measured configuration qualifiers, not interchangeable reference outputs; no generic kg per kilometre, square metre or structure is provided. Reference-product UUID remains unresolved.

4. Measurement and Unit Rules

rule_id	Applies to	Required property	Required unit	Rule
reference_count	reference product and accepted output	Number of items 01846770-4cfe-4a25-8ad9-919d8d378345	item	Reference amount is 1 item; inventory, collection and calculation use per declared reference flow, excluding purchase contracts and unfinished works.
geometry_and_cable_length	route and cable qualifiers	Length 838aaa23-0117-11db-92e3-0800200c9a66	m	As-built survey distinguishes route length, cable length, fibre length, parallel circuits and slack; m does not substitute kg or item.
physical_mass	auxiliary mass-balance and equipment-attribution records linked to materials and offcuts	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Weigh actual state with wet/dry basis; volume/length-to-mass needs matching batch density or measured kg/m. Equipment mass supports manufacture attribution, not reference-entity mass. The required Mass/kg is an auxiliary record, not a replacement primary property for length- or count-based exchanges. Keep pipes/cables in Length/m and complete joints/transformers in Number of items/item; link row, batch, configuration, issued quantity and independently measured kg or supported conversion in cp_materials/cp_cables. Never count the auxiliary mass as a second manufacturing exchange.
energy_basis	fuel and construction electricity	Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66	MJ	Preserve public net-calorific-value property; measured kWh times 3.6 gives MJ. Fuel kg times batch MJ/kg; volume fuel first uses actual density to kg. Unknown LHV/density cannot be guessed.
water_basis	water supply, abstraction, direct water discharge and volume-based liquid-waste rows; excludes wet-mass drill_slurry	Volume 93a60a56-a3c8-22da-a746-0800200c9a66	m3	Meter true liquid volume by separate interface, retaining quality, origin and receiver; resource, technosphere and emission water are distinct. Spent drill_slurry retains Mass/kg on the measured wet basis, including retained water and mineral solids under cp_waste; any auxiliary volume requires same-state density and does not replace or duplicate this waste exchange.

5. System Boundary

Boundary Abstraction

Field	Value
declared_starting_condition	Material/equipment supply interface, actual transport origin and initial site condition; retained infrastructure has measured interfaces
starting_condition_role	foreground construction and delivery
product_classification_scope	local cable-network and ancillary civil entities
recursive_input_rule	Do not recurse a purchased existing same-category work into new construction output; declare its delivered interface/historical burden and record actual modification separately
upstream_dataset_requirement	Match real factory-gate manufacture backgrounds and required transport separately; missing backgrounds mean uncovered upstream, not complete cradle-to-delivery
disclosure	Declare site-construction-to-acceptance foreground module; disclose upstream, transport, retained components, off-site treatment, operation/maintenance and dismantling coverage separately

rule_id	Rule	source_ids
construction_boundary	Include actual receipt/logistics, setting-out, site preparation, earthworks, placement/jointing, foundations, station/tower erection, tests, corrective rework and reinstatement through the documented acceptance boundary. Record actual equipment and utility activity by operation; shared site-operations rows must not duplicate downstream stage totals.	spen-secondary-civil-2026
upstream_interface	Keep manufacture of cables, ducts, concrete, transformer and other purchased items upstream; construction does not automatically reproduce factory inventories. Transport and external waste treatment remain separately linked stages with coverage disclosure.
later_stages	Operation energy, network losses, future maintenance/replacement and terminal dismantling are excluded from the default construction module. If required, model actual supported periods or explicit scenarios separately, with compatible reference function, maintenance geometry, removal activity and waste destinations; no default lifetime or end-of-life credit.
special_routes	For trenchless or submarine segments retain actual bore/lay/burial geometry, fluid recipe, vessel/equipment hours, spoil, losses and receiving media. Do not replace these branches with open-trench assumptions or declare ecological/noise effects absent merely because no characterized elementary identity is available.	itu-optical-cables-2009

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
site-operations	Receipt, survey, logistics and site operations	required	All delivered works; actual activities only	foreground construction	per declared reference flow
underground-civil	Underground ducts, trenches and crossings	conditional	Actual underground route or foundation/cable trench excavation; distinguish reused ducts, open trench and trenchless crossing	foreground construction	per declared reference flow
aerial-support	Aerial supports and cable suspension	conditional	Actual aerial line or locally serving transmission tower; distinguish new and retained supports	foreground construction	per declared reference flow
cable-placement	Cable placement, joints and terminations	conditional	Actual new or replaced local power, communication or television cable	foreground construction	per declared reference flow
station-tower	Local distribution station and antenna installation	conditional	Actual station or antenna facility in the delivered works; construction and installed equipment separately measured	foreground construction	per declared reference flow
marine-placement	Local submarine cable placement	conditional	Only a documented locally serving submarine segment; vessel placement, burial and shore interface separately recorded	foreground construction	per declared reference flow
reinstatement	Reinstatement and construction waste dispatch	conditional	Actual disturbed surface or construction waste dispatch before handover	foreground construction	per declared reference flow
acceptance	Inspection, testing and handover	required	All works; tests appropriate to the actual electrical, optical, structural or antenna configuration	foreground construction	per declared reference flow

Populate a row only when its exchange actually occurs and identity conditions match. Demonstrated absence requires a verifiable not-applicable reason; missing evidence is not zero. Shared electricity, fuel and water protocols split raw activity by process_id before aggregating once in site-operations. Real additional materials in another configuration require new atomic rows, not substitution into an existing name.

Process: Receipt, survey, logistics and site operations (site-operations)

Receive and inspect actual cable reels, components and equipment against supplier tickets; survey endpoints, existing services and the accepted work footprint. Unload and stage with actual lifting/handling equipment, install actual temporary protection and traffic arrangements, and record mobilisation and shipment legs. Meter individual equipment idling, fuel, temporary-power and water intervals against work orders. Separate outsourced freight from owned transport to prevent duplicate fuel. Existing ducts, poles and station assets are surveyed interfaces, not newly manufactured outputs.

Inputs

Product flows

Diesel (site_diesel)

Only actual petroleum-distillate diesel supplied to site engines with documented formulation, sulfur grade and supply interface. Use measured kg and batch net calorific value to express MJ; the database secondary mass ratio is not a fuel conversion factor. Biofuel carbon is separated.

• Selected flow: Diesel fbd79004-188c-47a4-900b-96005d994690
• Flow property / unit: Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66 / MJ
• Amount rule: Measured site-engine fuel energy; exclude transport already covered by a freight dataset
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_utilities

Alternating current (site_electricity_lv)

Only actual CN grid-average consumption at user below 1 kV. Separate measured site machinery, pulling, splicing and test electricity by work order; another geography or voltage requires another verified identity.

• Selected flow: Alternating current 50657322-939c-4829-a87b-47c093bfa6a7
• Flow property / unit: Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66 / MJ
• Amount rule: Metered kWh converted to MJ; no double count with generation fuel
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_utilities

Alternating current (site_electricity_mv)

Only actual CN user-side 1–35 kV supply; separate from the below-1-kV meter and downstream transformation. This is construction electricity, not delivered network operating electricity.

• Selected flow: Alternating current 3d76981f-964a-4865-b588-0e067a2a1163
• Flow property / unit: Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66 / MJ
• Amount rule: Metered kWh converted to MJ for this actual supply tier
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_utilities

Tap water (site_supply_water)

UUID is restricted to actual Hong Kong treated-water production/supply at water-treatment-plant gate. Verify the real transport/distribution link separately; other places require their own identity. Record curing, cleaning and dust-control use only if actual; no 1000 kg/m3 default.

• Selected flow: Tap water 3a8411b6-e476-4f98-9d77-0d492661a07f
• Flow property / unit: Volume 93a60a56-a3c8-22da-a746-0800200c9a66 / m3
• Amount rule: Metered m3 from matching supply linked to actual site use
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_water

Road freight transport of cable reels (road_freight)

Use only actual truck movements not embedded in delivered-price background datasets; other delivered items and waste routes receive separate shipment records and atomic transport rows.

• Selected flow: Road freight transport of cable reels
• Flow property / unit: Goods transport (massdistance) 838aaa20-0117-11db-92e3-0800200c9a66 / tkm
• Amount rule: Actual tonnes multiplied by route kilometres, retaining empty-return treatment and allocation
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_logistics

Hydraulic excavator (excavator_manufacturing_share)

Conditional actual excavator manufacture attribution, separate from fuel. Measure same-configuration equipment net mass and documented dimensionless activity share; cumulative shares across projects, periods and reuse shall not exceed one. Unknown lifetime activity remains review. Other tools require separate identities and records.

• Selected flow: Hydraulic excavator
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Measured equipment kg multiplied by supported manufacturing attribution share
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_equipment

Elementary flows

ground water (groundwater_abstraction)

Only actual fresh groundwater, CAS 7732-18-5, abstracted from an identified aquifer across the renewable-water-resource boundary for site dewatering. Record the real extraction country in the unit process for country-dependent characterization; no scarcity level is inferred. Rainwater ingress and purchased water are distinct; disclose displaced water and receiver, not assumed consumption.

• Selected flow: ground water 4f462198-40cd-4184-8733-86648a20dc3f
• Flow property / unit: Volume 93a60a56-a3c8-22da-a746-0800200c9a66 / m3
• Amount rule: Metered abstracted m3 by aquifer and pumping interval
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_water

Outputs

Elementary flows

carbon dioxide (fossil) (fossil_co2_air)

Only actual immediate external release of fossil carbon dioxide to air, unspecified subcompartment. Require fossil carbon and oxidation evidence for the actual equipment; no combustion emission follows merely from a fuel purchase.

• Selected flow: carbon dioxide (fossil) 08a91e70-3ddc-11dd-923d-0050c2490048
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Only actual measured or independently supported species-specific kg; absent evidence is unresolved, not zero
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_emissions

nitrogen monoxide (molecular_no_air)

Only measured molecular NO, CAS 10102-43-9, immediate external air/unspecified release; not aggregate NOx, NO2 or N2O.

• Selected flow: nitrogen monoxide 08a91e70-3ddc-11dd-96ee-0050c2490048
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Only actual measured or independently supported species-specific kg; absent evidence is unresolved, not zero
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_emissions

nitrogen dioxide (molecular_no2_air)

Only molecular NO2, CAS 10102-44-0, immediate external air/unspecified release. NOx reported as NO2-equivalent is not molecular NO2; retain unresolved speciation when needed.

• Selected flow: nitrogen dioxide 08a91e70-3ddc-11dd-96e5-0050c2490048
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Only actual measured or independently supported species-specific kg; absent evidence is unresolved, not zero
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_emissions

particles (PM2.5) (pm25_air)

Only actual immediate external air/unspecified PM2.5 release after controls from separately identified exhaust or fugitive operations. Do not equate TSP, workplace dust or total PM10 with this fraction.

• Selected flow: particles (PM2.5) 08a91e70-3ddc-11dd-9293-0050c2490048
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Only actual measured or independently supported species-specific kg; absent evidence is unresolved, not zero
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_emissions
• Sources: epa-construction-dust-1995

particles (PM2.5 - PM10) (coarse_pm_air)

Only actual external immediate air/unspecified fraction above 2.5 and up to 10 micrometres after controls; prevent overlap with PM2.5 and total PM10.

• Selected flow: particles (PM2.5 - PM10) 08a91e70-3ddc-11dd-9501-0050c2490048
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Only actual measured or independently supported species-specific kg; absent evidence is unresolved, not zero
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_emissions
• Sources: epa-construction-dust-1995

Water (freshwater_discharge)

Only actual liquid water directly entering an identified fresh-water receiving body, CAS 7732-18-5. Excludes resource withdrawal, supply, vapour, saline receivers and effluent sent for treatment. Record dissolved pollutants separately if measured; this row represents water only.

• Selected flow: Water 5e50fc01-19c6-4377-a1cc-bc65a12498ea
• Flow property / unit: Volume 93a60a56-a3c8-22da-a746-0800200c9a66 / m3
• Amount rule: Measured actual direct-discharge m3 at the receiving-water release point; if on-site treatment occurs, measure after it, and if no treatment occurs, retain the untreated direct release.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_water

Process: Underground ducts, trenches and crossings (underground-civil)

Locate existing utilities and set out actual trench, chamber, foundation or crossing geometry. For open excavation, record excavator/breaker work, shoring, actual dewatering, segregated spoil, duct positioning, measured bedding/backfill, compaction and any foundation reinforcement/concrete placement and curing. For reused ducts, inspect/prove and clean the actual duct without inventing new excavation. For trenchless work, record drilling rig and compressor/pump activity, bore path, actual drilling-fluid constituents and return/slurry handling; duct insertion and shore/crossing interfaces remain separate records. Sample/destination evidence distinguishes direct release from liquid treatment transfer.

Inputs

Product flows

HDPE cable duct (hdpe_duct)

Only actual HDPE duct placed in a trench or crossing; retain internal diameter, wall thickness, duct count and any existing duct interface. PVC and concrete ducts need separate rows.

• Selected flow: HDPE cable duct
• Flow property / unit: Length 838aaa23-0117-11db-92e3-0800200c9a66 / m
• Amount rule: Actual supplied metres reconciled to installed metres, returns and offcuts
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_materials
• Sources: itu-optical-cables-2009

Graded silica sand for cable bedding (bedding_sand)

Only actual specified bedding/backfill silica sand; thermal backfill formulation and grain grading must be documented. Site-won soil reused internally is not an imported sand input.

• Selected flow: Graded silica sand for cable bedding
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Weighed kg; measured volume conversion requires batch bulk density and moisture basis
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_materials

Ready-mixed cementitious concrete (cast_concrete)

Only actual plant-mixed concrete supplied wet for ducts, chambers, foundations or slabs. Grade, binder, moisture, density and delivery stage are required. Do not use a precast-component or unrelated wind-farm identity. On-site batching requires separate actual ingredient rows, without also counting the ready-mix.

• Selected flow: Ready-mixed cementitious concrete
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Wet kg from tickets or volume times verified batch density; retain separate geometric m3
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_materials
• Sources: spen-secondary-civil-2026

Hot rolled rebar steel (reinforcement)

Only actual factory hot-rolled low-alloy rebar with C ≤ 0.2% and matching uncoated state; embedded reinforcement of a purchased precast product is not counted again.

• Selected flow: Hot rolled rebar steel 43050e3b-42be-465c-a021-17f606484151
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Weighed attributable steel kg consumed, including cutting losses and damaged/rejected material before installation; use the cp_materials receipts/stock/returns balance and reconcile installed kg and each waste stream separately.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_materials
• Sources: spen-secondary-civil-2026

Processed bentonite drilling powder (bentonite_drilling)

Only actual bentonite powder in a trenchless crossing; specify processed grade and mix state. A bentonite elementary-resource flow cannot substitute this purchased product. Polymer additives need individual rows.

• Selected flow: Processed bentonite drilling powder
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Weighed dry powder kg with moisture basis and drill-fluid batch records
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_materials
• Sources: itu-optical-cables-2009

Outputs

Waste flows

Surplus excavated mineral soil (surplus_excavated_soil)

Only actual removed mineral soil dispatched off-site; classify contamination and destination. Internal backfill reuse stays in the excavation ledger. Segregate rock and contaminated soil when present.

• Selected flow: Surplus excavated mineral soil
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Wet/dry kg consistently weighed or measured volume with real density and moisture
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_waste

Spent bentonite drilling slurry (drill_slurry)

Only actual spent slurry leaving the site for treatment; include retained water and mineral solids on stated wet-mass basis. Direct water release and internal recirculation are separate.

• Selected flow: Spent bentonite drilling slurry
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Weighed wet kg with measured solids and moisture fractions
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_waste

Silty dewatering effluent sent for treatment (dewatering_effluent)

Only actual liquid sent to an external treatment interface. Do not use the freshwater elementary release identity for this waste transfer.

• Selected flow: Silty dewatering effluent sent for treatment
• Flow property / unit: Volume 93a60a56-a3c8-22da-a746-0800200c9a66 / m3
• Amount rule: Metered m3 and sample composition at dispatch
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_water

Process: Aerial supports and cable suspension (aerial-support)

Survey actual spans, pole/tower positions and retained supports. Construct measured foundations in underground-civil, then use the actual crane/lift or erection method to place supports, install anchors and specified hardware, and verify alignment and tightening against the project records. For lashed cable, install or verify the real messenger, blocks and lashing wire, place cable with actual reel/winch/lasher activity and measured slack/sag; self-supporting routes use their own actual fixing arrangement. Record bonding/grounding and inspect each accepted span. Shared supports require a beneficiary and manufacture-allocation ledger.

Inputs

Product flows

Galvanized steel line pole assembly (galvanized_pole)

Only new actual steel support with defined coating and hardware included in its delivered assembly; retained existing poles carry declared historical/interface treatment. Timber and concrete poles need separate rows.

• Selected flow: Galvanized steel line pole assembly
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Measured assembly net kg at declared configuration
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_materials

Galvanized steel messenger wire (messenger_wire)

Only actual separately supplied messenger wire for suspended communication cable; exclude a factory-integrated strength member.

• Selected flow: Galvanized steel messenger wire
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Actual net kg reconciled to installed length and measured kg/m
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_materials
• Sources: itu-optical-cables-2009

Stainless steel cable lashing wire (lashing_wire)

Only actual stainless-steel lashing wire, recorded separately from messenger wire and cable; not required for self-supporting cable.

• Selected flow: Stainless steel cable lashing wire
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Actual consumed net kg with residual wire and returns reconciled
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_materials
• Sources: itu-optical-cables-2009

Process: Cable placement, joints and terminations (cable-placement)

Inspect reels and duct/tray/aerial interfaces, define the actual pull or blowing plan, and record rollers, winch, compressor and pulling/placement intervals with cable-specific manufacturer limits. Record tension, bend radius, cable specification, installed cable length and slack as actual acceptance evidence, with no default lubricant or wastage percentage. Make only the actual power joints/terminations or optical splices, install the actual seals/closures and bonding, and keep fibre sleeves, cable glands, resins and other separately supplied constituents on individual rows when used. Tests and defect-driven replacement before handover stay inside this construction cycle.

Inputs

Product flows

Low-voltage cable (lv_cable)

Only actual CN factory-gate cable matching GB/T 12706.1-2020, rated-voltage range, conductor material, cores, cross-section, insulation and sheath. Factory-contained components stay embedded; transport and installation are separate. Other cable specifications require separate identities.

• Selected flow: Low-voltage cable 49101b44-20cc-46a0-adfb-af07e4cc8908
• Flow property / unit: Length 838aaa23-0117-11db-92e3-0800200c9a66 / m
• Amount rule: Use attributable cable consumption in m = gross receipts + opening stock - verified returns/transfers - closing reusable stock. Include installation offcuts, pre-acceptance damage and replacement consumption; reconcile accepted installed lengths and retained slack separately. Preserve Length/m and do not infer cable mass per metre.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_cables

Medium-voltage cable (mv_cable)

Only actual CN factory cable matching GB/T 12706.2-2020 and declared cores, conductor, voltage, insulation and sheath in a locally serving route. Medium voltage alone does not make a network long-distance.

• Selected flow: Medium-voltage cable 6cfb5366-3e9b-4356-8d18-eb27c432fbaf
• Flow property / unit: Length 838aaa23-0117-11db-92e3-0800200c9a66 / m
• Amount rule: Actual cable-metres consumed, retaining circuit and core distinction
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_cables

Sheathed optical fibre cable (optical_cable)

Only actual fibre cable with fibre count, single/multimode specification, sheath, armour and tensile-member configuration; copper/aluminium generic cable identities are unsuitable.

• Selected flow: Sheathed optical fibre cable
• Flow property / unit: Length 838aaa23-0117-11db-92e3-0800200c9a66 / m
• Amount rule: Actual sheathed cable-metres consumed, not fibre-metres
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_cables
• Sources: itu-optical-cables-2009

75-ohm television coaxial cable (television_coaxial)

Only actual 75-ohm television distribution cable with conductor, dielectric and shielding configuration; another impedance or copper communications construction receives its own row.

• Selected flow: 75-ohm television coaxial cable
• Flow property / unit: Length 838aaa23-0117-11db-92e3-0800200c9a66 / m
• Amount rule: Actual cable-metres consumed
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_cables

Water-based polymer cable-pulling gel (pulling_gel)

Only actual identified formulation approved for the actual sheath by the supplier; retain safety data and composition, not a default lubricant for every pull.

• Selected flow: Water-based polymer cable-pulling gel
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Weighed dispensed kg, net of unused returned gel
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_materials

Sealed low-voltage cable joint kit (power_joint)

Only the actual delivered joint kit matching the low-voltage cable and splice arrangement; no additional kit for a joint already included in a purchased assembly. Other voltages and termination kits are distinct rows.

• Selected flow: Sealed low-voltage cable joint kit
• Flow property / unit: Number of items 01846770-4cfe-4a25-8ad9-919d8d378345 / item
• Amount rule: Count of actual kits consumed with unused returns removed
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_materials

Optical fibre splice closure (fibre_closure)

Only actual completed closure; specify port/seal arrangement and fibre capacity. Factory-contained sleeves are not added again.

• Selected flow: Optical fibre splice closure
• Flow property / unit: Number of items 01846770-4cfe-4a25-8ad9-919d8d378345 / item
• Amount rule: Count of installed closures and consumed replacements before handover
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_materials
• Sources: itu-optical-cables-2009

Wooden cable drum (wooden_drum)

Only separately attributed actual wooden drum manufacture not already in the cable background. Record drum net mass, serial, return/reuse history and conserved share; do not classify an intact returned drum as waste.

• Selected flow: Wooden cable drum
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Measured wooden-drum kg times supported attribution share
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_equipment

Outputs

Waste flows

Insulated copper cable offcut (copper_cable_offcut)

Only actual insulated copper offcut dispatched as waste; not pure copper scrap, and not aluminium or optical cable. Split those when present; retain insulation and contamination state.

• Selected flow: Insulated copper cable offcut
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Actual weighed net kg from the segregated container
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_waste

Process: Local distribution station and antenna installation (station-tower)

Construct only the actual measured foundation, slab, drainage, oil-containment arrangement and enclosure; distinguish delivered prefab enclosure from masonry/roof/door construction. Lift and position the actual transformer/switchgear or local tower/antenna with serial and configuration records, then install specified anchoring, feeders, earthing and protection/control interfaces. Use actual lifting equipment hours and construction utilities, not estimated operation-year power. Factory-contained oil/gas/electronics stay in purchased-assembly scope; real on-site filling or release requires separate substance and activity evidence. Structural alignment/bolt, electrical/earthing and antenna acceptance are recorded for the actual delivery type.

Inputs

Product flows

Transformer (distribution_transformer)

Only actual complete factory-gate 400 kVA, 10/0.4 kV transformer matching construction, cooling and supplied-component scope. This identifier does not cover another rating or a complete station. Actual oil already contained in the purchased transformer is not purchased again.

• Selected flow: Transformer 734249ea-34e6-471b-a05a-f5b26b818167
• Flow property / unit: Number of items 01846770-4cfe-4a25-8ad9-919d8d378345 / item
• Amount rule: Count all matching transformers actually consumed for this delivery under cp_materials, including pre-installation damage and failed/rejected replacements; reconcile receipts, returns/transfers and stocks. Keep installed accepted count separately; other ratings retain separate unresolved identities.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_materials
• Sources: spen-secondary-install-2025

11-kV ring-main switchgear unit (local_switchgear)

Only actual 11-kV unit of declared insulation medium and protection configuration. A 220-kV GIS identity is unsuitable. Record measured filling or leakage of each gas separately only when it occurs.

• Selected flow: 11-kV ring-main switchgear unit
• Flow property / unit: Number of items 01846770-4cfe-4a25-8ad9-919d8d378345 / item
• Amount rule: Actual attributable complete units consumed, including units damaged or rejected before installation/acceptance and replaced, using the cp_materials receipts/stock/returns balance; retain installed accepted units separately.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_materials
• Sources: spen-secondary-install-2025

Fired clay masonry brick (station_brick)

Only actual brick-built station enclosure; no default building mass or wall thickness. Mortar and other installed enclosure constituents must be separately recorded.

• Selected flow: Fired clay masonry brick
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Actual supplied-and-consumed brick net kg
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_materials
• Sources: spen-secondary-civil-2026

Cement-sand masonry mortar (station_mortar)

Only actual supplied pre-mixed wet masonry mortar, with formulation and moisture declared; on-site mixing requires separate cement, sand and mixing-water rows instead.

• Selected flow: Cement-sand masonry mortar
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Actual wet kg; no generic cement-to-sand ratio
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_materials

Glass-fibre-reinforced polymer substation enclosure (prefab_enclosure)

Only actual prefab GRP enclosure; define included roof, doors and floors to prevent duplicate building constituent rows. Masonry route is not simultaneously assumed.

• Selected flow: Glass-fibre-reinforced polymer substation enclosure
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Measured attributable enclosure net kg consumed, including damaged/rejected enclosures replaced before acceptance; reconcile receipts, returns/transfers and stock changes under cp_materials. Retain accepted enclosure kg and dimensions separately.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_materials
• Sources: spen-secondary-civil-2026

Galvanized steel local transmission tower assembly (transmission_tower)

Only actual locally serving tower steel assembly with height, sections, galvanizing and included bolts declared. Wind-turbine towers and wind-farm-specific cable towers are not substitutes. Foundation inputs are separately recorded in underground-civil.

• Selected flow: Galvanized steel local transmission tower assembly
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Measured supplied tower net kg, retained erection and bolt records
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_materials

Outdoor radio transmission antenna assembly (antenna_unit)

Only actual antenna on the locally serving tower with frequency band, ports and configuration declared; separately record feeder cable and mounting items not contained in the assembly.

• Selected flow: Outdoor radio transmission antenna assembly
• Flow property / unit: Number of items 01846770-4cfe-4a25-8ad9-919d8d378345 / item
• Amount rule: Actual attributable complete antenna units consumed, including failed/rejected replacements, net of verified returns/transfers and closing reusable stock under cp_materials; record accepted installed units separately.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_materials

Bare copper earthing conductor (earthing_conductor)

Only actual separate copper conductor connecting station, tower and relevant cable bonding; factory-integrated conductor is excluded from additional input.

• Selected flow: Bare copper earthing conductor
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Actual weighed conductor kg reconciled to installed length and measured kg/m
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_materials
• Sources: spen-secondary-install-2025

Process: Local submarine cable placement (marine-placement)

For an actual locally serving submarine segment, survey the real seabed/riverbed and shore route, position cable with the actual laying vessel or shore pull, and record each actual burial, trenching, jetting or protection operation separately. Vessel propulsion and onboard equipment energy, paid service interfaces, burial geometry and joint/shore termination work must have real logs. Record disturbed sediment, actual discharges, resource intake and waste destinations by material and receiving medium; a marine gas-oil purchase alone proves none of those releases. No seawater intake, seabed disposal or ecological effect is assigned a made-up amount or a freshwater identity.

Inputs

Product flows

Marine gas oil (marine_gas_oil)

Only actual locally serving cable-laying or burial vessel fuel; grade, origin, net calorific value and loaded operating intervals required. A generic road-diesel identity is not adopted here. Fuel and transport-service routes cannot both represent the same vessel work.

• Selected flow: Marine gas oil
• Flow property / unit: Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66 / MJ
• Amount rule: Actual vessel fuel kg multiplied by batch net calorific value
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_utilities
• Sources: itu-optical-cables-2009

Outputs

Waste flows

Dredged mineral sediment sent off-site (marine_sediment)

Only actual dredged sediment removed for off-site handling, with salinity, solids, contaminants and destination specified; seabed redistribution is not automatically waste dispatch or a seawater resource exchange.

• Selected flow: Dredged mineral sediment sent off-site
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Actual wet kg and sampled solids fraction by dispatch batch
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_waste

Process: Reinstatement and construction waste dispatch (reinstatement)

After installation inspect actual backfill and compaction, restore only the surveyed disturbed pavement/verge or station surface with the real layers and finishes, and remove actual temporary works. Meter roller, paver, cutting and cleaning activity as applicable. Segregate offcuts, removed pavement, concrete residue and actual packaging by state; weigh dispatch and verify the recipient/treatment interface. Intact reels returned for reuse and materials reused within the same boundary are tracked as returns/internal transfers, not waste credits.

Inputs

Product flows

Hot-mix asphalt for trench reinstatement (asphalt_reinstatement)

Only actual asphalt surface restored to the measured disturbed area and specified layer thickness; not an entire road construction output. Retain recipe and plant-to-site delivery state.

• Selected flow: Hot-mix asphalt for trench reinstatement
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Weighed wet/delivered mix kg reconciled with measured layer volume and actual bulk density
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_materials

Outputs

Waste flows

Removed asphalt pavement (removed_asphalt)

Only actual excavated pavement leaving the worksite, with tar/contamination screen and destination; material reused within the declared works is an internal transfer.

• Selected flow: Removed asphalt pavement
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Actual dispatched net kg
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_waste

Discarded hardened cementitious concrete (concrete_waste)

Only actual hardened residue or removed concrete dispatched before handover, separated from fresh returned concrete and its reinforcement.

• Selected flow: Discarded hardened cementitious concrete
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Actual dispatched net kg with reinforcement handling declared
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_waste

Process: Inspection, testing and handover (acceptance)

Inspect as-built geometry and delivered configuration, reconcile reel/material and waste ledgers, and perform only the actual project-specified electrical insulation/continuity/bonding, optical loss/OTDR, tower/anchor structural or antenna checks appropriate to the entity. Retain instruments, calibration, test conditions, defects, repair/retest and signed acceptance. Attribute actual test power and rework consumables to site utility/material records once. Declare the agreed handover state and any deferred work or energisation interface; accepted readiness is not a guessed operating lifetime or regulatory approval.

Outputs

Product flows

Delivered local cable network works (reference_product_local_cable_works)

One actually accepted, uniquely identified local cable-network or ancillary civil entity. Its endpoints/site boundary, installed configuration and acceptance state define the entity; a service contract or bag of cable is not this output.

• Selected flow: Delivered local cable network works
• Flow property / unit: Number of items 01846770-4cfe-4a25-8ad9-919d8d378345 / item
• Amount rule: 1 item
• Value mode: Fixed value (fixed_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_handover

7. Allocation and Co-product Handling

rule_id	Rule	source_ids
shared_works_allocation	This delivered entity is the construction output. Separate measured branch activity for joint power/communication trenches, shared poles, stations and mobilisation before allocation. For inseparable residuals use a disclosed causal driver derived from actual work, such as excavated cross-section times length or measured equipment time, with denominator covering every beneficiary. A voltage, cost or cable-count share is not automatically causal.
reusable_capital_conservation	Reusable equipment and drums retain a serial-bound cumulative manufacture ledger. Share = project attributed activity / supported total life activity, only when compatible activity and denominator are evidenced; all project/period/reuse shares sum to at most one. Attribute measured same-configuration mass or count with that share, separately from operating activity. Unknown total life activity remains review, never reset full manufacture per project.
waste_and_recovery	Construction scrap and removed soil are not automatically co-products. Record waste state and destination; do not deduct a guessed avoided virgin-material burden. A separately evidenced product/recovery boundary requires a disclosed allocation model and an independent destination dataset.

8. Foreground Data Collection, Calculation, and Quality Rules

Data Collection Protocols

protocol_id	process_id	flow_role	record_type	raw_fields	collection_method	unit	frequency	temporal_coverage	site_scope	aggregation_rule	quality_evidence
cp_handover	acceptance	accepted entity	acceptance dossier	entity_id; endpoints; site boundary; route_m; cable_m by circuit; station_m2; tower_m; voltage/capacity/fibre specification; installed scope; completion/acceptance dates; test state	Survey as-built geometry; reconcile signed handover, circuit schedule and actual tests, recording energised or ready-only state	item; m; m2	Each acceptance with revisions	actual construction start to acceptance, including rework	declared entity and attributed activity	per declared reference flow	original tickets, calibration, samples, signed work records and gap register
cp_materials	underground-civil; aerial-support; cable-placement; station-tower; reinstatement	individual material input	delivery and installation ledger	row_id; batch; supplier; grade; state; net_kg; m or item; density; moisture; receipt; return; location; included components; component tags; failed/replaced quantities; opening/closing attributable stocks; verified transfers	Weigh tickets and net deliveries; reconcile design quantities, actual placement, returns and offcuts; independently support each volume/length conversion; input quantity in each native unit = attributable gross receipts + opening stock - verified returns/transfers - closing reusable stock. Include pre-acceptance failure/rework consumption; reconcile accepted installed quantities and waste separately without cancelling manufacturing burdens.	kg; m; item	Each batch and placement	actual construction start to acceptance, including rework	declared entity and attributed activity	per declared reference flow	original tickets, calibration, samples, signed work records and gap register
cp_cables	cable-placement	individual cable input	reel and circuit ledger	reel_id; specification; cable_metres; route_metres; cores; circuit; slack; returned_m; rejected_m; joint/termination positions ; attributable opening/closing cable stock in m; gross received cable m; verified return/transfer m; consumed damage/offcut/replacement m	Measure reel markings with calibrated counter and as-built circuit survey; record non-installed losses and actual replacement before acceptance Cable consumption in m = attributable gross receipts + opening stock - verified returns/transfers - closing reusable stock; include consumed offcuts/damage/replacements, while reconciling installed lengths and reusable surplus separately. Record these terms for every cable row; the balance is not limited to equipment counts or module areas.	m; kg	Each reel and circuit	actual construction start to acceptance, including rework	declared entity and attributed activity	per declared reference flow	original tickets, calibration, samples, signed work records and gap register
cp_utilities	site-operations; underground-civil; aerial-support; cable-placement; station-tower; marine-placement; reinstatement; acceptance	individual fuel and electricity	meter and fuel log	equipment_id; process_id; dates; start/end meter; kWh; fuel_kg; fuel_volume; actual density; batch_MJ_per_kg; geography; voltage; renewable/fossil fraction	Read actual meters and weigh/refuel tickets; assign operations including idling and rework once; vessel activity separately tagged	MJ; kWh; kg	Each shift, meter interval and fuel batch	actual construction start to acceptance, including rework	declared entity and attributed activity	per declared reference flow	original tickets, calibration, samples, signed work records and gap register
cp_water	site-operations; underground-civil	supply, abstraction and dispatch	separate water meters and samples	interface; origin; aquifer; receiver; m3; quality; sample; treatment; recirculation; dates; direction; no-transfer versus dispatch	Meter supply, pumping, treatment dispatch and direct release separately; reconcile wet process water and retained moisture; record saline/fresh receivers	m3	Each interval and discharge batch	actual construction start to acceptance, including rework	declared entity and attributed activity	per declared reference flow	original tickets, calibration, samples, signed work records and gap register
cp_logistics	site-operations; marine-placement; reinstatement	individual freight service	shipment records	shipment_id; material_row; origin/destination; net_t; route_km; truck; loaded/empty leg; allocation; background inclusion	Weigh actual load and document travelled route and empty return, with supplier transport boundary reconciled	t*km	Each trip	actual construction start to acceptance, including rework	declared entity and attributed activity	per declared reference flow	original tickets, calibration, samples, signed work records and gap register
cp_equipment	site-operations; cable-placement	capital manufacture attribution	serial cumulative-use ledger	serial; configuration; net_kg; count; project_hours/cycles; supported_total_life_activity; prior_shares; future_shares; repair scope	Weigh same configuration or verify count; audit complete activity denominator and allocation history, retaining uncertainty when incomplete	kg; item; dimensionless share	Each use and ledger update	actual construction start to acceptance, including rework	declared entity and attributed activity	per declared reference flow	original tickets, calibration, samples, signed work records and gap register
cp_waste	underground-civil; cable-placement; marine-placement; reinstatement	individual waste output	dispatch and composition record	row_id; batch; wet/dry_kg; moisture; solids; contamination; waste class; destination; treatment; returned product flag	Segregate and weigh actual outgoing streams, retain manifests and recipient receipts, excluding internal transfers	kg; m3	Each dispatch batch	actual construction start to acceptance, including rework	declared entity and attributed activity	per declared reference flow	original tickets, calibration, samples, signed work records and gap register
cp_emissions	site-operations; underground-civil; aerial-support; cable-placement; station-tower; marine-placement; reinstatement; acceptance	individual elementary emission	species and compartment evidence	process_id; equipment; fuel carbon; fossil/bio share; oxidation evidence; representative species concentration; sample volume; actual external exhaust flow; release interval; integrated release volume; temperature/pressure; dry/wet gas basis; representative coverage; particle cut; control efficiency evidence; compartment; timing; method limitations; noise observations	Use real external-release measurements or independent route-specific mass balance/model evidence; distinguish ambient background, indoor exposure, NOx-equivalent and true species; keep unsupported noise characterization explicit	kg; sampling units	Each operation or supported interval	actual construction start to acceptance, including rework	declared entity and attributed activity	per declared reference flow	original tickets, calibration, samples, signed work records and gap register

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
entity_normalization	all exchanges	q_ref = Q_attributed / N_accepted, where N_accepted counts traceable accepted entities with the same configuration; a single independent work has N_accepted = 1. Attribute before normalization; do not pool different functions.	cp_handover; relevant row protocol	atomic quantity per declared reference flow
geometric_material_conversion	materials recorded by geometry	kg = measured m3 × matching batch kg/m3, or measured m × same-configuration kg/m; density, moisture and state must match. Preserve wet kg and geometric m3 for ready-mix without inferring recipe.	cp_materials; cp_cables	converted real material mass
energy_conversion	electricity and fuel	MJ = kWh × 3.6; fuel MJ = measured kg × batch LHV MJ/kg. Fuel volume first uses actual kg/volume density; no invented default.	cp_utilities	MJ for each fuel and voltage tier
freight_activity	cable reel freight	t*km = sum of actual leg net t × route km, with return and sharing explicit. Do not add the same transport fuel/emissions when already included in the freight background.	cp_logistics	freight activity attributed to declared entity
species_emission	conditional mass-based pollutant elementary emissions; excludes volume-based water resources and releases	Release kg uses representative species concentration × integrated actual external exhaust flow or total released volume over the same representative interval, with units converted, or supported species mass balance; temperature/pressure and dry/wet basis must match. Sample volume supports sample mass and representativeness only, not total process exhaust volume. Fossil CO2 may use measured fossil carbon × evidenced oxidation fraction × 44/12; unknown concentration, total release volume or other inputs remain review. Particle cut and compartment must match. Water supply, abstraction and carrier-water release retain their separately metered m3 and receiving interfaces under water_basis and cp_water; any pollutants in that water use separate species mass rows.	cp_emissions	kg with defined species and compartment
water_balance	actual liquid water	Reconcile supply + abstraction + other measured inflow = direct release + liquid treatment dispatch + retained moisture + evidenced evaporation ± measured storage change; internal circulation is not counted twice. Incompatible volume states need real conversion; pollutant mass is not water mass.	cp_water; cp_waste	water-interface closure and residual disclosure

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
dq_identity	all exchanges	Verify substance, route, geography, included components, public primary property, unit and state; unresolved identity differs from absence.	supplier original specifications, public identities and site configuration
dq_geometry	reference entity	Retain endpoints, site and as-built geometry; distinguish cable m, route m and fibre m, with sources for measured area/height and actual capacity.	cp_handover; cp_cables
dq_completeness	each actual route	Check materials, energy, site water, waste, emissions, additional constituents and construction noise by operation; unsupported ecological/noise effects remain coverage gaps; no whole-life claim.	bill of quantities, equipment logs, waste/emission ledgers and gaps
dq_time	site quantities	Time coverage includes idling, actual rework and acceptance; dates, submeter attribution and calibration are traceable; estimates differ from measurements.	work orders, meters and calibration
dq_acceptance	delivery	Structural, earthing, electrical or optical tests match actual configuration with traceable defect closure; historical handbooks do not substitute current project specifications or approval.	cp_handover
dq_capital	reuse attribution	Evidence supports whole-life denominator and cumulative shares; unknowns remain review, without treating each project as new manufacture.	cp_equipment

9. Validation Rules

rule_id	Rule	source_ids
reference_and_function_check	Require one identified accepted entity and all applicable function/configuration/geometry qualifiers. Reference output is exactly 1 item and every inventory/collection/calculation denominator is per declared reference flow. Do not compare differently configured entities without an explicit functional equivalence study.
identity_check	Reject a UUID whose direct public identity conflicts with substance, geography, voltage, construction, compartment or primary property; retain exact unresolved rows. Reference-product identity remains unresolved for candidate use and must be resolved before publication.
physical_and_coverage_check	Check measured dimensions and material balances, density/LHV conversions, conditional process selection, waste destinations, water interfaces and non-overlapping particle fractions. Missing actual data, unknown manufacture denominator, unsupported emissions or characterized-noise gaps require review or incomplete coverage, not a passing physical validation.
handover_check	Require actual route-appropriate inspection and handover evidence; do not infer permission to energise or operate from this inventory. Verify separate foreground and upstream/later-stage coverage before any broader lifecycle claim.

10. Published Dataset Profile

Field	Value
dataset_role	foreground construction and delivery dataset
downstream_use	secondary_dataset; background_dataset
allowed_use	Configuration- and interface-matched local cable construction module; explicitly linked upstream, transport or later-stage models
excluded_use	Whole-life or complete cradle-to-delivery claims without supplied coverage; long-distance/complete railway systems; factory cable manufacture; network operation; per-km comparison without functional equivalence
required_metadata	reference entity, function, measured geometry, configuration, interfaces, construction period, actual operations, geography/supply, background/transport links, acceptance state and attribution ledger
required_quality_disclosure	measurement/estimate distinction, losses, material state, identity gaps, upstream/later coverage, noise/ecological gaps, historical-source limitations, reuse denominator and uncertainty
update_trigger	material change in as-built geometry/configuration, route, supplier identity, meters, energy mix, acceptance interface or waste destination

11. Data Sources

Source id	Type	Reference	Used for
unsd-cpc-local-cables-2025	official_guidance	UNSD CPC Version 3.0 Explanatory Notes, 30 June 2025, pp. 280–281	Scope of local power, communications, television and ancillary station/tower entities versus long-distance; no quantities or lifetime.
itu-optical-cables-2009	handbook	ITU-T, Optical fibres, cables and systems (2009), chapter 3 pp. 61–89; chapter 4 pp. 91–111	Historical qualitative optical installation, underground/trenchless/aerial/submarine and joining context. Process decomposition only; no current design limits, mandatory route or generic consumption rate.
spen-secondary-civil-2026	official_guidance	SPEN SUB-03-017, Issue 9, May 2026, sections 10.6–10.10, 12–13, pp. 15–27	Secondary-station civil/enclosure, as-built and site-quality record context; directly applicable only under SPEN conditions, otherwise project evidence required. No universal dimensions or recipes.
spen-secondary-install-2025	official_guidance	SPEN SUB-02-006, Issue 7, December 2025, sections 10–16, pp. 6–13	Ground-mounted secondary-station installation, acceptance and equipment boundary context; its lower-side 400/230V network conditions do not mandate a configuration for all works.
eirgrid-cable-records-2026	official_guidance	EirGrid CDS-GFS-00-001-R2.1, 27 March 2026, sections 2.1–2.5 and record schedules, pp. 8, 13–14	Comparator for material, pulling, jointing and acceptance records in Irish 110/220/400-kV transmission; no transfer of its fully ducted route, HV limits or guarantee maintenance into local requirements.
epa-construction-dust-1995	official_guidance	US EPA AP-42 section 13.2.3 Heavy Construction Operations, January 1995, pp. 1–2	Historical component-operation dust limitations/control context; no old average factor or TSP-to-PM2.5 substitution. Current releases need actual evidence.