Item
Specification
Note
If the PDF cannot provide 60 A circuit breakers and the full configuration is unnecessary, you
can select the circuit breaker (A1, A2, A3, B1, B2, and B3) for each DC input by using the
following formula.
I = P / ( Vin * D * 3 )
I: indicates the rated current of the circuit breaker of each line on the PDF, in Ampere (A).
P: indicates the total power of each device.
Vin: indicates the input voltage of the power supply. (38 < Vin < 72)
D: indicates the derating coefficient. The recommended coefficient is 0.8.
3: indicates the number of the input lines of the power module.
shows the selection of specifications of the cables (a1, a2, a3, b1, b2, and b3)
Table E-3
Cables and terminals for the NEPS5000-D
Distance from the PDF to
the Device
Cables and Terminals
Equal to or shorter than 25 m Wire,450/750V,227 IEC 02
(RV)16mm^2,blue,85A
Each power module should
be equipped with three cables
of this type. The cable length
is determined by the project
survey on site.
Wire,450/750V,227 IEC 02
(RV)16mm^2,black,85A
Each power module should
be equipped with three cables
of this type. The cable length
is determined by the project
survey on site.
Naked Crimping
Terminal,OT,
16mm^2,M6,Tin
Plating,Naked Ring
Terminal
Each cable should be
equipped with one terminal
of this type.
Naked Crimping
Terminal,OT,
16mm^2,M8,Tin
Plating,Naked Ring
Terminal
Each cable should be
equipped with one terminal
of this type.
Longer than 25 m and shorter
than 35 m
Wire,450/750V,60227 IEC
02(RV)25mm^2,blue,110A
Each power module should
be equipped with three cables
of this type. The cable length
is determined by the project
survey on site.
HUAWEI NetEngine80E Router
Installation Guide
E Guide to Power Distribution Design
Issue 02 (2011-09-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
154