Historical
DS/EN 61936-1/AC:2013
Power installations exceeding 1 kV a.c. - Part 1: Common rules
IEC 61936-1 provides, in a convenient form, common rules for the design and the erection of electrical power installations in systems with nominal voltages above 1 kV a.c. and nominal frequency up to and including 60 Hz, so as to provide safety and proper functioning for the use intended.*For the purpose of interpreting this standard, an electrical power installation is considered to be*one of the following:*a) Substation*b) Electrical installations on mast, pole and tower*Switchgear and/or transformers located outside a closed electrical operating area *c) One (or more) power station(s) located on a single site*The installation includes generators and transformers with all associated switchgear and all electrical auxiliary systems. Connections between generating stations located on different sites are excluded.*d) The electrical system of a factory, industrial plant or other industrial, agricultural, commercial or public premises*The electrical power installation includes, among others, the following equipment:*- rotating electrical machines;*- switchgear;*- transformers and reactors;*- converters;*- cables;*- wiring systems;*- batteries;*- capacitors;*- earthing systems;*- buildings and fences which are part of a closed electrical operating area;*- associated protection, control and auxiliary systems;*- large air type core reactor.*NOTE In general, a standard for an item of equipment takes precedence over this standard.*This standard does not apply to the design and erection of any of the following:*- overhead and underground lines between separate installations;*- electric railways (but not the substation feeding a railway system);*- mining equipment and installations;*- fluorescent lamp installations;*- installations on ships and off-shore installations;*- electrostatic equipment (e.g. electrostatic precipitators, spray-painting units);*- test sites;*- medical equipment, e.g. medical X-ray equipment.*This standard does not apply to the design of factory-built, type-tested switchgear for which separate IEC standards exist.*This standard does not apply to the requirements for carrying out live working on electrical installations.
Danish Standards [ds]