MCB's

[MarshallW]

Hi there,

Living in China and want to wire a new apartment myself -- Chinese electricians scare me to death! 32 amp type B mcb's are not readily available, so can I use a 30 amp type C on a power ring?

 

[Adam_151]

I'd be very supprised if the chinese regulations allowed a final final circuit... but anyway, if we assume that you are going to do it to BS7671 regardless, then as long as you ok on the Zs then there isn't a problem

 

[MarshallW]

Thanks. Surpried at what you say about Chinese regs. Do they have any? seems that most Chinese electricians do what they want to do and everything seems to be unsafe.
Am I breaking their regulations?

 

[plugwash]

I don't know about chineese regs but I wouldn't want to put any socket that can take unfused low current plugs on a circuit over 20A and preferablly not on one over 16A.

 

[djrichie_t]

I have had to fix chinese made generators, and the state of the wiring/workmanship is very poor, things easily fall apart. I would say from that experience alone... dont trust any chinese sparky as they seem to like to take 2 minutes to do a 2 hour job.

 

[JohnD]

The Ring Final circuit is almost unique to the UK. It should only be used with fused plugs; which are also almost unique to the UK.

 

[jossper]

Hong Kong uses 13a plugs and ring final circuits - like other ex-british places.