GENERAL SPECIFICATION FOR THE CIVIL SUB-03-025 ENGINEERING .
GENERAL SPECIFICATION FOR THE CIVILENGINEERING AND BUILDING DESIGN ANDCONSTRUCTION OF PRIMARY AND 33kVSWITCHING SUBSTATIONS1.SUB-03-025Issue 4SCOPEThis Specification outlines SP Energy Networks (SPEN) technical requirements for the civil designand construction works associated with existing and new Primary Substations. Where changes areproposed to existing substations these should be undertaken in line with this document. TheConstructor is entirely responsible for all aspects of the civil design and construction process.This is a generic technical specification written in a manner that it may be used without alteration forall such works therefore certain parts may not be applicable to all substation construction types. It isnot designed to cover every eventuality or site-specific situation; however, prior agreement must beobtained in writing from SPEN Engineering Design and Standards to any proposed variation to theguidelines provided in this Specification.Development of proposals for site-specific variation that are acceptable to SPEN shall be theConstructor’s responsibility and shall be submitted to SPEN Engineering Design and Standards foracceptance.2.ISSUE RECORDThis is a Reference document. The current version is held on the EN Document Library.It is your responsibility to ensure you work to the current version.Issue DateIssue No.AuthorNovember 2016Issue 3C RitchieFebruary 2020Issue 4C Ritchie3.Amendment DetailsSection 10 amended to consider the refurbishment ofexisting buildings. Section 12.7.2 updated to mitigateflood risk, Sections 12.17.11 & 12.17.12 and Section13 Building Services requirements updated.Use of sustainably sourced and recycled materialsincorporated, Section 10.3.3 Security Requirementsupdated and security interfaces included throughoutthe document, Section 12.6 updated to cover the useof Esters and Emergency Drainage Plans, Section12.16.17 general updates to door requirements.ISSUE AUTHORITYAuthorColin RitchieLead Civil EngineerOwnerGilbert MpofuEngineering Design ManagerIssue AuthorityFraser AinslieHead of Engineering Designand StandardsDigitally signed by Fraser AinslieDN: cn Fraser Ainslie, o Processand Technology, ou EngineeringDesign and Standards,email fraser.ainslie@spenergynetworks.co.uk, c GBDate: 2020.05.15 11:29:50 01'00'.Date: .4.REVIEWThis is a Reference document which has a 3 year retention period after which a reminder will beissued to review and extend retention or archive.5.DISTRIBUTIONThis document is part of the SPD and SPM System Design Virtual Manuals and Construction VirtualManual maintained by Document Control, but does not have a maintained distribution list. It is alsopublished to the SP Energy Networks website. SP Power Systems LimitedPage 1 of 53
GENERAL SPECIFICATION FOR THE CIVILENGINEERING AND BUILDING DESIGN ANDCONSTRUCTION OF PRIMARY AND 33kVSWITCHING SUBSTATIONS6.SUB-03-025Issue 4CONTENTS1. SCOPE . 12. ISSUE RECORD . 13. ISSUE AUTHORITY . 14. REVIEW . 15. DISTRIBUTION . 16. CONTENTS . 27. GLOSSARY . 48. RELATED DOCUMENTS . 68.1Specific SPEN Documents. 68.2Iberdrola Networks Specifications . 68.3National Grid (NG) Documents . 68.4British Standards . 78.5Other Documents . 79. INTRODUCTION . 89.1Feasibility . 810. GENERAL REQUIREMENTS . 1010.1Consents . 1010.2Pre-Engineering Studies . 1010.3Scheme Development (Detailed Submission) . 1210.4Design . 1310.5Substation Site Layout . 1610.6Setting Out . 1610.7Services. 1610.8Construction . 1710.9As-Built Information . 1710.10 Quality Assurance . 1811. STANDARDS . 1812. CIVIL TECHNICAL REQUIREMENTS . 1812.1Site Clearance . 1812.2Earthworks . 1912.3Compound Construction . 1912.4Compound Earthing Systems . 2012.5Roads and Footways . 2012.6Drainage . 2112.7Oil Containment . 2512.8Fire Segregation to Outdoor Equipment . 27 SP Power Systems LimitedPage 2 of 53
GENERAL SPECIFICATION FOR THE CIVILENGINEERING AND BUILDING DESIGN ANDCONSTRUCTION OF PRIMARY AND 33kVSWITCHING SUBSTATIONS12.9SUB-03-025Issue 4Acoustic Enclosures and Barriers . 2912.10 Fencing to Substation Enclosures. 2912.11 Metalwork . 3212.12 Woodwork . 3212.13 Concrete . 3212.14 Masonry. 3312.15 Prefabricated Enclosures . 3412.16 Building Enclosures (Traditional Construction) . 3413. BUILDING SERVICES TECHNICAL REQUIREMENTS . 4813.1Heating Ventilation and Air Conditioning (HVAC) . 4813.2Building Electrical Systems . 5013.3Security Alarm Systems . 5213.4Fire Alarm Systems . 5214. POST-COMMISSIONING (RETURN) SITE VISIT . 5315. DRAWINGS. 53 SP Power Systems LimitedPage 3 of 53
GENERAL SPECIFICATION FOR THE CIVILENGINEERING AND BUILDING DESIGN ANDCONSTRUCTION OF PRIMARY AND 33kVSWITCHING SUBSTATIONS7.SUB-03-025Issue 4GLOSSARY33kV Primary Substation:An assembly of High Voltage Switchgear up to 33kV together withassociated Control and Ancillary equipment where the lowest voltageis 400/230V and which may also include one or more 33/11kVTransformers and/or Reactors, all housed within secure enclosures.Adopt:Transfer of title, ownership, operation and maintenance responsibilitiesas defined in the adoption agreement.Approved:Equipment that is Approved in accordance with SPEN documents foruse or installation on the Company network.ARC:Alarm Receiving Centre operated by Corporate Security or 3rd party.CBA:Cost Benefit Analysis.CDM Regulations:Construction (Design and Management) Regulations.Civil:Reference to civil or similar shall mean civil, structural and buildingengineering and shall apply to the design, manufacture, installationand demolition of all related permanent works.Company:Refers to SP Distribution plc, SP Transmission plc and SP Manwebplc.Container:Approved prefabricated containerised housing for 11kV and/or 33kVSwitchboard(s) together with associated Control and Ancillaryequipment within a secure Prefabricated Enclosure.Constructor:The party, including SPEN or other Third Party ‘Turnkey’ Design-BuildContractors and Third Party New Connection Developers andContractors (ICPs), having ultimate responsibility for provision of the33kV Primary substation, including design, construction and CDM.The ‘Constructor’ should also be read as the Designer or Contractordepending on the type of Contract.Deemed to Satisfy:Considered fit for the Company’s purpose and compliant in principlewith this Specification by and without further reference to SPEN.Energisation:The application of Voltage to an item(s) of Equipment from the system.Equipment:Switchgear, transformers, cables, overhead lines, surge arresters,voltage transformers, current transformers, protection & control,telecommunications, unit substations.GIS:Gas insulated switchgear.GRP:Glass Reinforced Plastic.GPRS:General Packet Radio Service is a packet oriented mobile datastandard on the 2G and 3G cellular communication network's globalsystem for mobile communications.High Voltage (HV):An alternating current (AC) voltage exceeding 1000 volts measuredbetween the phase conductors.HVAC:Heating Ventilation and Air Conditioning.Indoor Equipment:Equipment designed solely for installation within a building or otherhousing where the Equipment is protected against wind, rain, snow,abnormal dirt deposits, abnormal condensation and frost. SP Power Systems LimitedPage 4 of 53
GENERAL SPECIFICATION FOR THE CIVILENGINEERING AND BUILDING DESIGN ANDCONSTRUCTION OF PRIMARY AND 33kVSWITCHING SUBSTATIONSSUB-03-025Issue 4IP:Ingress ProtectionLED:Light Emitting Diode.Low Voltage (LV):An AC voltage not exceeding 1000 volts measured between the phaseconductors.National EnvironmentAgency:Environment Agency (EA) in England.Natural Resources Wales (NRW) in Wales.Scottish Environment Protection Agency (SEPA) in Scotland.NGTS:National Grid plc Technical Specification.Outage:De-energisation of an item(s) of Equipment on the Company’selectricity network system.Outdoor Equipment:Equipment designed to be suitable for installation out with a building orother housing where the Equipment is not protected against wind, rain,snow, abnormal dirt deposits, abnormal condensation and frost.SCADA:System Control and Data Acquisition.SP Distribution plc (SPD):The Distribution Licence Holder for the distribution service areaformerly known as ScottishPower.SP Transmission plc (SPT):The Transmission Licence Holder for the transmission service areaformerly known as ScottishPower.SP Manweb plc (SPM):The Distribution Licence Holder for the distribution service areaformerly known as Manweb.SPEN:SP Energy Networks, the brand name for the division of theScottishPower group of companies that encompasses SP Distributionplc, SP Transmission plc, SP Manweb plc, SP Power Systems Ltd andScottishPower Energy Networks Holdings Ltd.SRA:Security Risk Assessment conducted by ScottishPower CorporateSecurity.SUDS:Sustainable Urban Drainage Systems.Third Party New ConnectionContractor (ICP):Connection Contractor: Suitably Lloyds/National ElectricalRegistration Scheme Accredited Contractor undertaking contestablework in the competitive connections market.Transformers:Reference to Transformers shall mean Transformers and Reactors. SP Power Systems LimitedPage 5 of 53
GENERAL SPECIFICATION FOR THE CIVILENGINEERING AND BUILDING DESIGN ANDCONSTRUCTION OF PRIMARY AND 33kVSWITCHING SUBSTATIONS8.SUB-03-025Issue 4RELATED DOCUMENTSThe design and construction of the works shall be in accordance with the relevant Eurocodes andBritish Standards specific to that design element. This is detailed further in Section 11 ‘Standards’.8.1Specific SPEN DocumentsASSET-01-021Asset Inspection and Condition Assessment PolicyASSET-01-023Substation Security PolicyCAB-15-003Handling and Installation of Cables up to and including 33kVEART-03-002Technical Specification for Earthing 132kV S/S and aboveSUB-01-012Substation Fire Protection PolicySUB-01-018Substation Flood Resilience PolicySUB-03-017General Specification for the Civil Engineering and Building Design andConstruction of Secondary SubstationsSUB-03-018Specification for Prefabricated Glass Reinforced Plastic EnclosuresSUB-03-026General Specification for the Civil Engineering and Building Design andConstruction of 132kV Grid SubstationsSUB-03-029Substation LVAC Installation Wiring Specification for New andRefurbished Substation SitesSUB-03-034General Specification for the Civil Engineering and Building Design andConstruction of 275 and 400kV SubstationsSUB-03-039General Specification for the Re-Use of Concrete Structures8.2Iberdrola Networks SpecificationsINS 50-40-118.3Pre-fabricated enclosures for distribution substationsNational Grid (NG) DocumentsNGTS 2.10 SeriesGeneric Electricity Substation Design Manual Civil, Structural andBuilding Engineering.NGTS 3.10 SeriesGeneric Technical Specification (Construction) for Civil, Structural andBuilding Engineering.NGTS 3.01.02Substation Earthing. SP Power Systems LimitedPage 6 of 53
GENERAL SPECIFICATION FOR THE CIVILENGINEERING AND BUILDING DESIGN ANDCONSTRUCTION OF PRIMARY AND 33kVSWITCHING SUBSTATIONS8.4SUB-03-025Issue 4British StandardsBS EN 206-1Concrete. Specification, performance, production and conformity.BS 5266-1Emergency lighting. Code of practice for the emergency escape lighting ofpremisesBS EN 60529Degrees of protection provided by enclosures (IP code).BS 8000Workmanship on building sites, codes of practice.BS 8500-1Concrete. Complementary British Standard to BS EN 206-1BS EN 14889Fibres for ConcreteBS EN 12464-112464124641BS 1722-12Light and lighting. Lighting of work places. Indoor work placesBS 1722-14Fences. Specification for open mesh steel panel8.5Fences. Steel palisade fences. Manufacturing and installation. SpecificationOther DocumentsENA TS 41/24Guidelines for the Design, Installation, Testing and Maintenanceof Main Earthing Systems in SubstationsStandards for HighwaysThe Impregnation of Reinforced and Prestressed ConcreteHighway Structures using Hydrophobic Pore-Lining Impregnants.DMRB Volume 2 - BD 43/03Standards for HighwaysEarthworksMCHW – Volume 1 – Series0600 SP Power Systems LimitedPage 7 of 53
GENERAL SPECIFICATION FOR THE CIVILENGINEERING AND BUILDING DESIGN ANDCONSTRUCTION OF PRIMARY AND 33kVSWITCHING SUBSTATIONS9.SUB-03-025Issue 4INTRODUCTIONThis document outlines SPEN’s technical specification requirements for the civil design andconstruction works associated with existing and new Primary Substations. Where changes areproposed to existing substations these should be undertaken in line with this document. TheConstructor is entirely responsible for all aspects of the civil design and construction process.This technical specification shall be used for all Primary Substation types including: Substation containers housing Indoor Equipment, with or without Outdoor Equipment (e.g.transformers). Substation buildings housing Indoor Equipment installed within discrete purpose designedand traditionally built secure enclosures, with or without Outdoor Equipment (e.g.transformers). Indoor Equipment installed within a customer owned building, with or without OutdoorEquipment (e.g. transformers).Certain sections within this specification may not be applicable to all aspects of a Primary substationproject. Furthermore, the Specification is not designed to cover every eventuality or site-specificsituation.Where it can be demonstrated that a deviation from this Specification offers an equivalent or bettertechnical and/or lower risk solution this will be considered on a site specific basis. All such deviationsshall be fully discussed and agreed with SPEN Engineering Design and Standards within timescalesthat do not adversely affect project objectives and programme. The development of such proposals,that incorporate deviations from this Specification, shall be the Constructor’s responsibility.The technical specifications for the civil engineering and building design and construction of anySecondary or 132/275/400kV substations that form an integral part of Primary Substation schemesshall be as follows: Prefabricated substation enclosuresINS 50-40-11 Secondary substationsSUB-03-017 132kV Grid substationsSUB-03-026 275kV & 400kV e the requirement for a Primary Substation has been established and the type of substationagreed, it is important that during the initial design stage the requirements detailed within this andother referenced documents are given due consideration.In order to avoid possible abortive effort and subsequent delay; the Constructor shall confirm at theearliest opportunity how these re
SUB-03-034 General Specification for the Civil Engineering and Building Design and Construction of 275 and 400kV Substations SUB-03-039 General Specification for the Re-Use of Concrete Structures 8.2 Iberdrola Networks Specifications INS 50-40-11 Pre-fabricated enclosures for distribution substations 8.3 National Grid (NG) Documents NGTS 2.10 Series Generic Electricity Substation Design Manual .
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