Standard

NEK EN 61643-21:2001

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Abstract

Is applicable to devices for surge protection of telecommunications and signalling networks against indirect and direct effects of lightning or other transient overvoltages. The purpose of these SPDs is to protect modern electronic equipment connected to telecommunications and signalling networks with nominal system voltags up to 1 000 V (r.m.s.) a.c. and 1 500 V d.c.

Document information

  • Standard from NEK
  • Published:
  • Edition: 1
  • Version: 1
  • Document type: NAT
  • ICS 29.240
  • ICS 29.240.10
  • National Committee NEK/NK37

Legal references

EU law: 73/23/EEC

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