CSA C22.3 No. 7 — Underground systems
Canadian underground systems standard. Cable installations and associated practice.
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Tags: CA,underground,cables,C22.3,CA
Regulatory documentation
BS 7671, NEC, CEC, IEEE substation guides, IEC/EN 61936/50522, Grid/Distribution Codes practice.
IEC 60364 series — Low-voltage electrical installations (EU/international base)
International LV installation series underpinning many EN/HD documents. Design framework for LV systems across Europe.
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Tags: EU,IEC 60364,LV installations,EU
HD 60364 / BS HD / national implementations of IEC 60364 in EU
European harmonisation documents based on IEC 60364. National wiring rules basis in many EU member states.
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Tags: EU,HD 60364,CENELEC,LV,EU
EN 61936-1 — Power installations exceeding 1 kV a.c. (EU)
European standard for HV a.c. power installations. Clearances, safety distances, installation rules for substations.
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EN 50522 — Earthing of power installations exceeding 1 kV a.c. (EU)
European HV earthing standard. Design and verification of earthing systems for power installations above 1 kV.
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IEC 61936-1 — international counterpart for HV installations
IEC base standard for power installations >1 kV a.c. International reference aligned with EN 61936-1.
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IEC 60071 — Insulation co-ordination (series)
Insulation co-ordination principles and application guides. Fundamental for HV equipment specification worldwide.
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IEC 60909 — Short-circuit currents in three-phase a.c. systems
Calculation of short-circuit currents in three-phase a.c. systems. Global engineering standard for fault studies.
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IEC 60947 series overview — LV switchgear and controlgear
International family for LV switchgear and controlgear. Basis of EN 60947 used across Europe and globally.
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IEC 61439 series — Low-voltage switchgear and controlgear assemblies
Assemblies standard replacing older 60439 practice. Design verification of LV switchboards. Extremely high demand.
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