Recent content by dealova

It's true with MCCBs but it's happens with my Siemens MCBs. Maybe it's too old..... Yes Apache, it's Hong Kong Applaud Smiley

Why when there is a short-circuit or overload current the MCB will trip (works) but sometimes the handle (toggle switch) won't came down ? This happens with many of my Siemens MCBs. Anyone has the same experienced ? Thanks.

I have read Merlin-Gerin catalogue, their recommendation MCBs for residential use are : In UK : single-pole, 6kA (60898), B Curve In Australia : single-pole, 4.5kA (60898), C Curve In Singapore : dual-poles, 6kA (60898), C Curve Despite the different setup for different country, does anyone...

The bungalow is in Asia, but the owner is British. He's trying to get a copy by himself. I just to make familiar to the rules.

the house I build here must comply with the 17th Edition of the Wiring Regulations because the owner is Briton.

Yeah, we don't have it here. According to BS EN 60898, multiple of rated current : B Type : 3 - 5 times C Type : 5 - 10 times D Type : 10 - 20 times If it's down to the tripping characteristics, should I use B type for the downstream and C type (less sensitive) for the Upstream ?

I have seen Merlin-Gerin literature about the discrimination setup but that's for three-phase which involved 3 levels (the Main Switchboard, the subdistribution boards, final distribution). There is no info on single-phase yet.

Someone has advice me that I should use 6kA on the D1 and use lesser rating (A) & 4.5kA on all D2 MCBs. Does it work ? If so, how about the tripping curve ?

Hi all, How to make partial or total discrimination for residential use ? I mean how to coordinate the circuit-breakers such a downstream fault (e.g. short-circuit), ONLY the circuit-breakers placed immediately upstream (D2) of the fault will trip. The main / incomer circuit-breaker (D1)...

no problem. I just not get used to this forum ;) Thanks anyway.

?:|

I'm from Indonesia. Nice to know u all. Wish u all the best........ ; \