DS/HD 384.4.442 S1
Electrical installations of buildings - Part 4: Protection for safety - Chapter 44: Protection against overvoltages - Section 442: Protection of low-voltage installations against faults between high-voltage systems and earth
|Publication Date:||14 August 1997|
|ICS Code (Electricity supply systems):||91.140.50|
The rules of this section provide requirements for the safety of persons and equipment in the low-voltage installation in the event of a fault between the high-voltage system and earth in the transformer sub-station which supplies the low-voltage installation.