Transcription of Technical Specification for Secondary Substation Earthing
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Technical Specification for Earthing and bonding at Secondary substations EART-03-003 Issue No. 1 SP Power Systems Limited Page 1 of 64 1. SCOPE This Technical Specification describes SPEN s requirements for Earthing and bonding systems at Secondary substations. This includes all HV/LV substations, HV switching stations, HV pole-mounted installations and HV customer substations up to and including 11 kV. It is intended for application to new build or existing substations where significant work is carried out on site ( switchgear replacement or transformer change), and is not retrospective.
Scenario (1) - Dense large urban network (e.g. Cities and large towns) - all underground modern cable ... arrangements are permitted by those documents and/or where further information is required. ... These are standard designs of typical ground-mounted substations and
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