Huawei NetEngine80E Installation Manual page 162

HUAWEI NetEngine80E Router
Installation Guide
Item
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.
Table E-3
Table E-3 Cables and terminals for the NEPS5000-D
Distance from the PDF to
the Device
Equal to or shorter than 25 m Wire,450/750V,227 IEC 02
Longer than 25 m and shorter
than 35 m
Issue 02 (2011-09-10)
Specification
shows the selection of specifications of the cables (a1, a2, a3, b1, b2, and b3)
Cables and Terminals
(RV)16mm^2,blue,85A
Wire,450/750V,227 IEC 02
(RV)16mm^2,black,85A
Naked Crimping
Terminal,OT,
16mm^2,M6,Tin
Plating,Naked Ring
Terminal
Naked Crimping
Terminal,OT,
16mm^2,M8,Tin
Plating,Naked Ring
Terminal
Wire,450/750V,60227 IEC
02(RV)25mm^2,blue,110A
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Copyright © Huawei Technologies Co., Ltd.
E Guide to Power Distribution Design
Note
Each power module should
be equipped with three cables
of this type. The cable length
is determined by the project
survey on site.
Each power module should
be equipped with three cables
of this type. The cable length
is determined by the project
survey on site.
Each cable should be
equipped with one terminal
of this type.
Each cable should be
equipped with one terminal
of this type.
Each power module should
be equipped with three cables
of this type. The cable length
is determined by the project
survey on site.
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