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 2 Poles MCB Incoming TNB Power

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prophecus
post Aug 22 2024, 09:27 AM

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Junior Member
157 posts

Joined: Nov 2004
From: Petaling Jayo


QUOTE(ceo684 @ Aug 12 2024, 02:06 AM)
Your clamp meter not true RMS is it.
One unit WH running from cold already take 14-16A easily.

The 16mm one you can buy Mega Kabel meter loose cut in the correct colours (red and black) as necessary, but if your supply (from meter) is 10mm then no point lah.

Also, not much use for the 100mA RCD when the 30mA RCD is capable for whole house sockets and lights. There is little point in using the 100mA RCD in modern day without fluorescent tube lights.
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Developers have to comply to wiring regulation by Suruhanjaya Tenaga. 10 mA for water heater and wet area. 30 mA for sockets. 100mA for lighting and AC.

in the UK they have moved on to RCBO. No more RCCB as it is included in each circuit. So if there is leakage only individual circuit would trip not the whole house. In Malaysia RCBO is available for Water heater (20A, 10mA trip), the rest not widely available yet or price too expensive.

 

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