Compliance
Every HLF scope is built, inspected and handed over against the standards named in the contract. Each check traces back to the clause that requires it.
Traceability
How a requirement in the contract becomes evidence in the handover dossier.
- SpecificationThe clause, the standard and the client requirement.
- ITPInspection and test plan, with hold and witness points.
- ITRCompleted and signed at the workface.
- CertificateMechanical completion, test and Ex certificates issued from the record.
- DossierHanded over, with every document traceable to the clause.
- BS 7671
- BS HD 60364-6 / IEC 60364-6
- BS 7430
- BS EN IEC 61439-1
- Electricity at Work Regulations 1989
- HSE HSG85
- BS EN IEC 61936-1
- BS EN IEC 62271-200
- ENA EREC G99
- HSE HSG47
- BS EN 50522
- BS EN IEC 62305-3
- BS EN IEC 60079-10-1
- BS EN IEC 60079-14
- BS EN IEC 60079-17
- BS EN IEC 60079-19
- DSEAR 2002
- IEC 62933-5-2
- BS EN 62446-1
- BS EN IEC 61851-1
- ISO 9001
- ISO 19011
- ISO 45001
- ISO 14001
- CDM 2015
- HSE L153
- HSE HSG65
- Work at Height Regulations 2005
- LOLER 1998
- PUWER 1998
Standards register
The legislation, standards, specifications and contract forms we work to, by discipline and sector. Linked entries open the publisher’s page. We work to the edition named in your contract, or the current edition where none is named.
Legislation
- Electricity at Work Regulations 1989Electricity at Work RegulationsLegislation
- ESQCR 2002Electricity Safety, Quality and Continuity RegulationsLegislation
- DSEAR 2002Dangerous Substances and Explosive Atmospheres RegulationsLegislation
- COMAH 2015Control of Major Accident Hazards RegulationsLegislation
- EPS Regulations 2016Equipment and Protective Systems Intended for Use in Potentially Explosive Atmospheres Regulations (UKEX)Legislation
- Offshore Safety Case Regulations 2015Offshore Installations (Offshore Safety Directive) (Safety Case etc.) RegulationsLegislation
- PFEER 1995Offshore Installations (Prevention of Fire and Explosion, and Emergency Response) RegulationsLegislation
- CDM 2015Construction (Design and Management) RegulationsLegislation
- Work at Height Regulations 2005Work at Height RegulationsLegislation
- LOLER 1998Lifting Operations and Lifting Equipment RegulationsLegislation
- PUWER 1998Provision and Use of Work Equipment RegulationsLegislation
- Electric Vehicles (Smart Charge Points) Regulations 2021Smart functionality and security requirements for EV charge pointsLegislation
Electrical installation
- BS 7671Requirements for Electrical Installations (IET Wiring Regulations)Standard
- BS HD 60364-6 / IEC 60364-6Low-voltage electrical installations: verificationStandard
- IET Guidance Note 3Inspection and testingGuidance
- BS EN IEC 61439Low-voltage switchgear and controlgear assembliesStandard
- BS EN 60204-1Safety of machinery: electrical equipment of machinesStandard
- BS 7909Temporary electrical systems: code of practiceStandard
- IEC 61892Mobile and fixed offshore units: electrical installationsStandard
- HSE HSG85Electricity at work: safe working practicesGuidance
HV, power and grid
- BS EN IEC 61936-1Power installations exceeding 1 kV ACStandard
- BS EN IEC 62271-200AC metal-enclosed switchgear and controlgear, 1 kV to 52 kVStandard
- BS 7870LV and MV polymeric insulated cables for use by distribution and generation utilitiesStandard
- NG TGN(E)187Guidance for conductor jointing in substationsGuidance
- ENA EREC G98Connection of fully type tested micro-generators to distribution networksSpecification
- ENA EREC G99Connection of generation equipment to distribution networksSpecification
- DNO specificationsDNO specific engineering specificationsSpecification
- HSE HSG47Avoiding danger from underground servicesGuidance
Earthing and lightning protection
- BS 7430Code of practice for protective earthing of electrical installationsStandard
- BS EN 50522Earthing of power installations exceeding 1 kV a.c.Standard
- ENA TS 41-24Guidelines for the design, installation, testing and maintenance of main earthing systems in substationsSpecification
- EREC S34A guide for assessing the rise of earth potential at electrical installationsGuidance
- EREC S36-1Identification and recording of ‘hot sites’ – Joint Electricity Industry / British Telecom procedureGuidance
- NG TS 3.01.02Technical specification – EarthingSpecification
- BS EN IEC 62305Protection against lightning, Parts 1 to 4Standard
Hazardous areas
- BS EN IEC 60079-10-1Classification of areas: explosive gas atmospheresStandard
- BS EN IEC 60079-10-2Classification of areas: explosive dust atmospheresStandard
- BS EN IEC 60079-14Electrical installations design, selection and erectionStandard
- BS EN IEC 60079-17Electrical installations inspection and maintenanceStandard
- BS EN IEC 60079-19Equipment repair, overhaul and reclamationStandard
Process and functional safety
- BS EN 61511Functional safety: safety instrumented systems for the process industry sectorStandard
Renewables, storage and EV charging
- BS 7671 Section 712Solar photovoltaic (PV) power supply systemsStandard
- BS EN 62446-1Photovoltaic systems: testing, documentation and maintenanceStandard
- IEC 62933-5-2Electrical energy storage systems: safety of grid-integrated electrochemical systemsStandard
- IET Code of Practice for Electrical Energy Storage SystemsDesign, installation and maintenance of battery energy storageGuidance
- BS 7671 Section 722Electric vehicle charging installationsStandard
- BS EN IEC 61851-1Electric vehicle conductive charging systemsStandard
- IET Code of Practice for EV Charging Equipment InstallationElectric vehicle charging equipment installationGuidance
Rail
- BS EN 50122-1Railway applications – Fixed installations – Electrical safety, earthing and the return circuit – Part 1: Protective provisions against electric shockStandard
- BS EN 50122-2Railway applications – Fixed installations – Electrical safety, earthing and the return circuit – Part 2: Provisions against the effects of stray currents caused by d.c. traction systemsStandard
- BS EN 50122-3Railway applications – Fixed installations – Electrical safety, earthing and the return circuit – Part 3: Mutual interaction of a.c. and d.c. traction systemsStandard
- BS EN 50121Railway applications: electromagnetic compatibilityStandard
- BS EN 50126Railway applications: reliability, availability, maintainability and safety (RAMS)Standard
- Network Rail standardsNetwork Rail company standards for lineside and electrical worksSpecification
Building services
- SHTM / HTM 06-01Electrical services supply and distribution in healthcare premisesGuidance
- BS 5266-1Emergency lighting: code of practiceStandard
- BS 5839-1Fire detection and fire alarm systems for buildings: non-domestic premisesStandard
Fibre optic networks
- IEC 61280Fibre optic communication subsystem test procedures, including installed cable plantStandard
- IEC 60793Optical fibresStandard
- IEC 60794Optical fibre cablesStandard
Quality and management systems
Health and safety guidance
Contract forms
- NEC4NEC4 contracts, including the Engineering and Construction ContractContract
- NEC3NEC3 contracts, including the Engineering and Construction ContractContract
- FIDICFIDIC conditions of contractContract
- IChemEIChemE forms of contract for process plantContract
Contact
Tell us about the scope, the contract and the programme. We reply to enquiries within one working day.