General Instructions
Service conditions
18
cpg.1
Fully SF6 gas insulated single and double busbar GIS switchgears up to 36 kV in accordance
with IEC Standards
IG-137-EN version 03; 23/06/2016
3 Service conditions
Installation
Indoor
Maximum ambient temperature
+ 40 ºC
Minimum ambient temperature
– 5 ºC
Maximum mean ambient temperature, measured over a 24-hour period
+ 35 ºC
Maximum mean relative humidity, measured over a 24-hour period
< 95%
Maximum mean relative humidity, measured over a 1-month period
< 90%
Maximum height above sea level
1000 m
Solar radiation
Negligible
Ambient air pollution (dust, smoke, corrosive and/or flammable gases, vapours or
salt)
Insignificant
Vibrations caused by causes external to the switchgear or by seismic movements
Negligible
The specifications refer to the section "Normal
service conditions for indoor cubicles" in the
IEC 62271-1 standard 'Common specifications
for high voltage cubicle standards”.
For special service conditions: ambient
temperature above + 40 ºC, installation and/
or transport over 1000 m above sea level,
significant pollution level, or others different to
those described, check with
Ormazabal
.
Summary of Contents for Ormazabal cpg.1 Series
Page 67: ......
