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# HUAWEI NIP6800 Series V500 Hardware Guide

##### This document of the NIP6800 Series describes hardware structure, installation guide, and hardware maintenance. The content of this document includes the appearance and specifications of the product, the supported expansion cards, preparation before the installation, installation, cabling, and hardware replacement.
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NIP6830 Power Distribution Design Guide

### NIP6830 Power Distribution Design Guide

This section describes how to configure power distribution for the NIP6830.

#### DC Power Distribution Guide

This section describes how to select DC power distribution cables and circuit breakers for the DC PDF.

Figure 2-44 shows the schematic diagram of the DC power distribution.

Figure 2-44  Schematic diagram of the DC power distribution

Table 2-9 shows the current parameters of each circuit breaker and each power line for the PDF.

Table 2-9  Current parameters of each circuit breaker and each power line for the PDF (DC PEMA)

Item

Specification

Note

Each circuit breaker (A and B)

≥ 50 A

To protect power supplies of different levels, it is recommended that the current of the circuit breaker on the user side should be greater than or equal to that of the circuit breaker of the power module (50 A).

Each power supply (A and B)

≥42 A

To support the maximum configuration, it is recommended that each DC power line should provide a minimum of 42 A current.

If the PDF cannot provide 50 A circuit breakers and the full configuration is unnecessary, you can select the circuit breaker of each DC line by using the following formula.

I = P / (Vin * D * 1)

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.

1: indicates the number of the input lines of the power module.

Table 2-10 shows the selection of power cables a and b.

Table 2-10  Cables for the PEMA

Distance from the PDF to the Device

Selection of Power Cables a and b

Equal to or shorter than 15 m

Wire,450/750V,227 IEC 02(RV)16mm2,blue,85A

Each power module should be equipped with one cable of this type. The cable length is determined by the project survey on site.

Wire,450/750V,227 IEC 02(RV)16mm2,black,85A

Each power module should be equipped with one cable of this type. The cable length is determined by the project survey on site.

Naked Crimping Terminal,JG2,16mm2,M6,95A,Tin Plated,for OEM

Each cable should be equipped with one terminal of this type.

Naked Crimping Terminal,OT,16mm2,M8,Tin Plating,Naked Ring Terminal

Each cable should be equipped with one terminal of this type.

Longer than 15 m and equal to or shorter than 35 m

Wire,450/750V,227 IEC 02(RV)25mm2,blue,110A

Each power module should be equipped with one cable of this type. The cable length is determined by the project survey on site.

Wire,450/750V,227 IEC 02(RV)25mm2,black,110A

Each power module should be equipped with one cable of this type. The cable length is determined by the project survey on site.

Naked Crimping Connector,JG2,25mm2,M6,150A,Tin Plating,For OEM

Each cable should be equipped with one terminal of this type.

Naked Crimping Terminal,OT,25mm2,M8,Tin Plating,Naked Ring Terminal

Each cable should be equipped with one terminal of this type.

Longer than 35 m

A PDF should be placed near the device.

Formula calculating cable cross-sectional area

S = ( I * L ) / 74

S: indicates cross-sectional area.

I: indicates the current flowing through the cable.

L: indicates distance from the PDF to the device.

#### AC Power Distribution Guide

This section describes AC power distribution and AC cable matchings.

NOTE:

If the customer uses a purchased three-core cable, the ground core does not need to be connected to the ground terminal on the device. This is because the ground terminal on the device has already been connected to a separate ground cable, ensuring that the device is properly grounded.

Figure 2-45 shows the AC power module.

Figure 2-45  AC power distribution

NOTE:

AC power modules A and B are connected to two AC PDFs or AC distribution box through cables a and b.

It is recommended that the current specifications of the circuit breakers (A and B) on the PDF or distribution box be no less than 20 A (because the current specifications of the circuit breaker of the R4850G2 power module is 20 A).

Table 2-11 lists the cables and terminals for the AC power module.

Table 2-11  Cables and terminals for the AC power module

Type

Description

Quantity

R4850G2

External Suite, Power Cords All Over The World, Class I Equipment With Connector C19, External Cable Set

Each power module should be equipped with one cable of this type. The cable length is determined by an onsite project survey.

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