Hitachi Relion 670 Series Product Manual page 80

Line differential protection RED670
Version 2.2
Table 31. Environmental conditions
Description
Operating temperature range
Short-time service temperature range
Relative humidity
Atmospheric pressure
Altitude
Transport and storage temperature range
Table 32. Environmental tests
Test
Cold operation test
Cold storage test
Dry heat operation test
Dry heat storage test
Change of temperature test
Damp heat test, steady state
Damp heat test, cyclic
Table 33. CE compliance
Test
Electromagnetic compatibility (EMC)
Low voltage (LVD)
Table 34. Mechanical tests
Test
Vibration response test
Vibration endurance test
Shock response test
Shock withstand test
Bump test
Seismic test
80
Type test value
Test Ad for 16 h at -25°C
Test Ab for 16 h at -40°C
Test Bd for 16 h at +70°C
Test Bb for 16 h at +85°C
Test Nb for 5 cycles at -25°C to +70°C
Test Ca for 56 days at +40°C and humidity 93%
Test Db for 6 cycles at +25 to +55°C and humidity 93 to 95% (1 cycle =
24 hours)
Type test values
Class II: Rack mount
Class I: Flush and wall mount
Class I: Rack, flush and wall mount
Class I: Rack, flush and wall mount
Class I: Rack, flush and wall mount
Class I: Rack, flush and wall mount
Class II: Rack mount
Class I: Flush and wall mount
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Value
-25°C to +55°C (continuous)
-40°C to +70°C (<16h)
Note: Degradation in MTBF and HMI performance outside the
temperature range of -25°C to +55°C
<93%, non-condensing
86 kPa to 106 kPa
up to 2000 m
-40°C to +85°C
According to
EN 60255–26
EN 60255–27
1MRK 505 379-BEN R
Reference standard
IEC 60068-2-1
IEC 60068-2-1
IEC 60068-2-2
IEC 60068-2-2
IEC 60068-2-14
IEC 60068-2-78
IEC 60068-2-30
Reference standards
IEC 60255-21-1
IEC 60255-21-1
IEC 60255-21-2
IEC 60255-21-2
IEC 60255-21-2
IEC 60255-21-3
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