GB11032 Metal oxide surge arresters without gaps for
IEC60099-4 metal-oxide surge arresters without gaps
for a.c. systems.
JB/T 8952 polymer-housed metal oxide surge arresters
without gaps for a.c. systems.
Normal service conditions
Surge arresters are suitable for normal outdoor operation
under the following service conditions:
Surge arresters subject to other than normal application
or service condition may be offered according to the agreement
between the manufacturer and the purchaser.
Ambient air temperature within the range of -40°C
Altitude not exceeding 1000m;
Frequency of the AC power supply not less than 48
Hz and not exceeding 62Hz;
Wind velocity not exceeding 35m/sec;
Max. permissible horizontal force on terminal:
2.3~25.4 kV 147N
42~84 kV 294N
96~228kV 490N and 980N