Table 18. IRIG-B
Description
Value
IRIG time code format
B004, B005
1)
Isolation
500V 1 min.
Modulation
Unmodulated
Logic level
TTL Level
Current consumption
2...4 mA
Power consumption
10...20 mW
1)
According to 200-04 IRIG -standard
Table 19. Lens sensor and optical fibre for arc protection
Description
Value
Fibre-optic cable including lens
1.5 m, 3.0 m or 5.0 m
Normal service temperature range of the lens
-40...+100°C
Maximum service temperature range of the lens, max 1 h
+140°C
Minimum permissible bending radius of the connection fibre
100 mm
Table 20. Degree of protection of flush-mounted IED
Description
Value
Front side
IP 54
Table 21. Environmental conditions
Description
Value
Operating temperature range
-25...+55ºC (continuous)
Short-time service temperature range
-40...+85ºC (<16h)
1)2)
Relative humidity
<93%, non-condensing
Atmospheric pressure
86...106 kPa
Altitude
Up to 2000 m
Transport and storage temperature range
-40...+85ºC
1)
Degradation in MTBF and HMI performance outside the temperature range of -25...+55 ºC
2)
For IEDs with an LC communication interface the maximum operating temperature is +70 ºC
Transformer Protection and Control
1MRS757846 A
RET620
Product version: 2.0
22
ABB