Hi,

The previous house owner has removed the fuse and disconnected the TNB power supply. So I just applied a new meter and it was installed last week. But I noticed that TNB has not install back the fuses. May I know is it under the scope of TNB to do this?

If it's not, then I'll but it from the hardware shop. But is it safe to just push in the 3 fuses where I think the incoming part is live?

Thanks

Managed to have TNB come to install the fuses. But I noticed that it's rated at 32A which is kinda low as the MCB at the DB is already 63A. Meaning that the fuse will burn first before the MCB will trip.

May I know is this normal? Or I shall ask TNB to change it to 63A or 100A fuse?

Thanks

Contacted TNB, too bad they insist that 32A is OK and ask me to inform them again shall there be any problems in the future   

BTW, just wondering if it's OK to buy the 63A or 100A fuse from the electrical shop and change it by myself? Will TNB later say I temper with their meter?

Thanks

BTW, when I tested all the RCDs last night, 1 of the 20A, 10mA RCD will not trip upon pressing the test button. Does it means that the RCD is faulty?

Ya ya sorry forgot to mention it's 3-phase 

But still if there's any overload, the 32A fuse will still blow first before the main 63A MCB will trip right? Then I might need to get a spare fuse since TNB is not keen to change it to higher rating.

Abut the RCD, the current brand is EPS. Is it a good brand? Or better to use the brands as mentioned above?

About the breaker before the SPD, I noticed that there's 1 in between the main 63A MCB and the SPDs, with metal lever (the main 63A MCB is with plastic lever). I believe it's the one you mentioned right?

Thanks again

You might be right but I just wanna understand the logic behind it as from my experience, the downstream protection should be activated first before the upstream one. Also it's much easier to reset the MCB instead of changing the fuse when the need arises.

Ya ya only a few units of aircond and water heater, and a centralised pump. Others are standard home appliances like oven etc., nothing more than that.

Noted the suggestion but for the time being, I can leave the 32A fuse there and keep a 63A fuse as spare in case needed, so no need to wait for TNB to come and change it. The incoming cable is 16 mm.sq, which I think is good enough for 63A. But then there's no way I'll be using 63A per phase, just wanna understand the logic behind it