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Published Sort descending Name
Installation of Pipelines and Underground Cables Updated Dec 14
Terminology Updated Dec 14
Payments Schedule Updated Dec 14
Commitments to Land Access Oct 14
Guidance on Land Rights Oct 13
NSI 17: Pressure systems [NGUK/PM/ETSR/NSI/17/GN Issue 4]
NSI 08: Mobile elevated work platforms, lorry loaders, vehicles, cranes and objects in substations guidance [NGUK/PM/ETSR/NSI/08/GN Issue 6]
NSI 06: Demarcation in substations [NGUK/PM/ETSR/NSI/06/GN Issue 8]
NSI 02:Appendix A.10 v18 Nov 2024
NSI 02: Earthing high voltage equipment [NGUK/PM/ETSR/NSI/02/GN Issue 12]
NSI 32: Now incorporated into NSI 31
NSI 31: Control of National Grid Transmission Safety Rules and Supporting Documentation [NGUK/PM/ETSR/NSI/31/GN Issue 2]
NSI 01: Operational and safety switching [NGUK/PM/ETSR/NSI/01/GN]
NSI 03: High Voltage Metal Clad Switchgear with Spouts [NGUK/PM/ETSR/NSI/03/GN Issue 3]
NSI 04: Work on or near high voltage overhead lines [NGUK/PM/ETSR/NSI/04/GN Issue 10]
NSI 05: Cable systems [NGUK/PM/ETSR/NSI/05/ISSUE 1]
NSI 09: Testing high voltage equipment - Issue 4
NSI 10: Equipment containing pressurised interrupting / insulating gases [NGUK/PM/ETSR/NSI/10/GN Issue 6]
NSI 11: Work On or Near to High Voltage Capacitors [NGUK/PM/ETSR/NSI/11/GN Issue 5]
NSI 12: Low Voltage Equipment [NGUK/PM/ETSR/NSI/12/GN Issue 1]