Surge Protection And Grounding; Surge Protection; Grounding - Huawei FusionModule1000A20 Product Description

FusionModule1000A20 Prefabricated All-in-One Data
Center
Product Description (380 V)
Item
Dimensions
Weight
Operating voltage
Operating current
Operating temperature
Ambient humidity
Installation height
Protection area

3.6 Surge Protection and Grounding

3.6.1 Surge Protection

Surge Protection for Power Ports
⚫
⚫
⚫
Surge Protection for Signal Ports
⚫
⚫

3.6.2 Grounding

Internal Grounding
The main earthing terminal (MET) is installed in the pre-fab. module and connects to the
external ground grid over ground downleads.
Equipment in the pre-fab. module connects to the ground busbar over ground cables and are
insulated from other metal parts.
Issue 01 (2019-10-31)
First-level surge protection: A class I SPD with the capacity I
µs) is deployed at the AC power inlet for a pre-fab. module.
Second-level surge protection: An SPD with the recommended capacity I
(8/20 μs) is deployed at the PDB.
Third-level surge protection: An SPD with the recommended capacity I
μs) is deployed at the power input port of the downstream equipment such as the
intelligent heat exchanger or UPS.
Indoor signal ports comply with 1 kV surge protection in common mode.
Signal ports for routing cables out of the pre-fab. module pass the 3 kA impulse current
test.
Copyright © Huawei Technologies Co., Ltd.
Parameter
100 mm in diameter and 50 mm in height
(with a base)
About 153 g (with a base)
DC 24 V (±20%)
Monitoring state: 40 μA
⚫
⚫ Action state: About 52 mA (related to
the loop current limiting resistance)
–20°C to +60°C
≤ 95% RH (non-condensing)
≤ 12 m
2
About 60 m
of at least 100 kA (8/20
max
3 System Architecture
of 60 kA
max
of 20 kA (8/20
in
68