Huawei TP482000B Series User Manual page 23

TP482000B V300R002C03 Telecom Power
(TP482000B-N20B1, TP482000B-N20B2,
TP481200B-N20B1, and TP481200B-N20B2)
User Manual
The rectifiers are hot-swappable, which facilitates installation and maintenance and
lowers the operational expenditure (OPEX).
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Robust protection
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High reliability
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Issue 07 (2020-04-10)
A built-in DC surge protective device (SPD) provides 10 kV (8/20 µ s) in
differential mode and 20 kV (8/20 µ s) in common mode.
A built-in AC SPD provides 20 kA (8/20 µ s) nominal lightning strike discharge
current and 40 kA (8/20 µ s) at the maximum.
Rectifiers provides 5 kA and 6 kV protection.
The signal ports resist 0.5 kV voltage-to-ground in differential mode and 1 kV in
common mode.
The power system has a service life of 10 years, mean time between failures
(MTBF) of 500,000 hours, and a failure rate of 2000 FITs.
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