Nope breaker should be correct as it's the original one from the new house. 63A for the incoming, 40A for the ground floor DB and 40A for the 1st floor DB.

Should I be concern about the 32A fuse?   

Erm... usually different cut out fuse have different size housing. So have to buy the housing together. Which will cost around rm100 for 3 phases if it is a 3 phase system. If 1 phase then around rm30-40. There are a few different type housing and if they don’t fit properly with the original then it will have problem.

Tnb won’t accuse of you tempering the meter. The fuse have no serial number attached anyway... unless there are wires with clamp on the fuse which they may record down. Anyway, if you don’t know what you are doing, don’t do it. High current and voltage. If you try to pull it out or install without breaking the house electricity in the first place, there and be big arcs and potential damage to equipment in the house due to the voltage spikes and dips.

what is the cable size? can the cable, fuseholder, meter handle 63A or 100A? if can, then can ask tnb for 100A instead.
the breakers and fuse is sized to protect cable and provide discrimination.

since we are on this page, kindly insist on
RCD - 100mA for light, 30mA for socket, 10mA for bathroom
add on SPD if there is risk of lightning
check your earthing

these will help to avoid unnecessary problems later.

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   

So few days ago my cut off fuse were stolen too..3 phase wiring, bought em off at electric ahop for 35each , 63amp..just wondering ..when one cabut your fuse..will it do damage on the electrical appliances ?
And how do we prevent this kind of things from happening again?
Its so easy to pull out the fuse..it doesn't have any kind of safety locking system when pushed in.. sometimes unsure if the fuse is in or not

So few days ago my cut off fuse were stolen too..3 phase wiring, bought em off at electric ahop for 35each , 63amp..just wondering ..when one cabut your fuse..will it do damage on the electrical appliances ?
And how do we prevent this kind of things from happening again?
Its so easy to pull out the fuse..it doesn't have any kind of safety locking system when pushed in.. sometimes unsure if the fuse is in or not

if no have can?