NBN EN 61958 : 2002

1 General
   1.1 Scope
   1.2 Normative references
2 Service conditions
3 Definitions
4 Ratings
   4.1 Rated voltage
   4.2 Rated insulation level
   4.3 Rated frequency
5 Design and construction
   5.1 General
   5.2 Treshold values for voltage presence indication
   5.3 Indication and perceptibility
   5.4 Coupling element and voltage limiting device
   5.5 Marking
   5.6 Phase comparator and connecting point
   5.7 Electromagnetic compatibility (EMC)
6 Type tests
   6.1 General
   6.2 Arrangement, assembly, marking, and instructions
       for use
   6.3 Clear indication of VPIS
   6.4 Response time of VPIS
   6.5 Dielectric strength of the coupling element of
       VPIS
   6.6 Maximum current delivered by the connecting point
   6.7 Voltage limiting device
   6.8 Clear perceptibility of visual indication
   6.9 Impact resistance
   6.10 Clear indication of phase comparators
   6.11 Electromagnetic compatibility tests (EMC)
   6.12 Indication until power source is exhausted
7 Routine tests
   7.1 General
   7.2 Clear indication
8 Guide to the selection of VPIS
9 Information to be given with enquiries, tenders
   and orders
10 Instructions for use
   10.1 General
   10.2 Instructions for use of VPIS
   10.3 Instructions for use of phase comparators
11 Safety
Annex ZA (normative) Normative references to
         international publications with their
         corresponding European publication
Annex ZB (informative) A-deviations

Specifies voltage presence indicating systems (VIPS) incorporated in a.c. switchgear and controlgear. These voltage presence indicating systems are used to provide information to operators about the voltage condition of the main circuit of the switchgear in which they are installed.