99.60 Withdrawal effective Jun 25, 2015
IEC
International Standard
29.240.10 Substations. Surge arresters
Revised
Describes the principles for the selection, operation, location and coordination of SPDs connected to telecommunication and signalling networks with nominal system voltages up to 1 000 V r.m.s. a.c. and 1 500 V d.c.
Also addresses SPDs that incorporate protection for signalling lines and power lines in the same enclosure.
WITHDRAWN
IEC 61643-22:2004 ED1
99.60
Withdrawal effective
Jun 25, 2015
PUBLISHED
IEC 61643-22:2015 ED2