Replacing An Spd - Huawei PDU8000 User Manual

Dc combiner cabinet

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PDU8000 DC Combiner Cabinet

User Manual

8.2 Replacing an SPD

Prerequisites

Do not replace an SPD during a thunderstorm.

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Procedure

Step 1 Open the front door of the combiner cabinet.

Step 2 Loosen the screws on the protective panel of the SPD and open the protective

panel.

Take appropriate insulation measures to avoid electric shocks when opening the

protective panel.

Step 3 Disconnect the SPD fuses FU9 and FU10.

Step 4 Use a multimeter to measure voltage at the +, –, and PE terminals of the SPD.

Verify that the faulty SPD has no voltage before replacing it.

Figure 8-2 SPD voltage measurement position

Step 5 Remove the SPD cables using a Phillips screwdriver.

Step 6 Press the snap ring of the faulty SPD using a flat-head screwdriver and pull the

SPD outwards to remove it.

Issue 02 (2022-08-10)

D ANGER

Tools: electroprobe, key to the combiner cabinet door, Phillips screwdriver,

flat-head screwdriver

Material: A new SPD of the same model is available and functional.

NO TICE

8 Component Replacement

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