Good day to all,  I got noob question.

Is 3 phase = able to provide 3 x the Amp of single phase? So if single phase max is 63A so 3 phase = 3x63A?

My parents want to start a small home baking business and are planning on getting a commercial oven. Would you guys recommend that we change to three phase?

We have a lot of aircons in the house but pretty much never on them all at the same time. At most 2 on at the same time.

I don't even know how to check that 

yeah, can consider just use first to see if there are any problems.

can save money if no problems 

Hi guys, in Malaysia or Strata any rules saying that we cannot run concealed wiring without pvc conduit?

What wires should I use for concealed wiring 1.5mm for light and fan?

Other than double pvc what is other options?

from Both also because DB slot limited

actually I'm engaging a contractor , i stay in condo. they don't want to take risk to drill deeper and put a conduit as worrying it might affect the slab between my ceiling with the floor for neighbor above

Yes it is only 1.5mm for lighting and fan. So DI is better , what if my contractor just want to use single layer PVC ?

thank you, saw the work done today, the contractor managed to use back the developer wire Conduit PVC as my requested new light and fan point just along the existing conduit.
now i have a new question. can i pull a new 2.5mm wire from the DB shared for 3 Power point outlet sockets (all three for CCTV on 24 hours) and 2 switches for 17W ceiling exhaust fans (on 24 hours)?

Hi bro sorry ya, currently i have a project in PJ and i requested TNB to come over to shift a 3ph TNB meter from the existing column outside to the new column next to it, about 3ft away. So the tnb guy came and said they cannot connect the wire, they will need to install new wiring. And to do so, he gave me 2 options, first option is to dig the road and pull the cable from across, and he quoted me RM14k for digging and another RM11k+- for new cables. The 2nd option he suggested was to install a TNB pole, which would cost less than RM10k. My question is, is it not possible to just reconnect the wires since its just a short length away? Because the connection can be done inside the box, hence I doubt so there wont be an issue, not that I can tell, but the tnb guy said better to pull a new wire because in case anything happen, or if i engage another contractor to add the wiring and a problem surfaces, they will still ask to install a new wiring. I am quite surprised by the price they quoted, i thought it would be less than RM5k to install a pole. And i read on our forums here to shift meter only RM1.5k at most. So now the owner also headache I also headache.  Partly on my fault for not enquiring sooner first. :\

Thanks for your reply in advance.

So means no choice but to lay new cabling? ☹

Edit: possible to use cable jointing kit?

Hmm. I know uncut would be best, but the cables is short only 1ft, my estimation, I have yet to find the actual GI pipe in which the TNB cable is coming in from. But from where I see it and estimate, the cable length which would be short is about 1ft, I guess the tnb guy is playing safe, but that amount to redo is way overpriced and personally quite illogical. He said RM14k to pace the way for the cables, and another RM10k to lay cables. And the pole, he asked me to dig the hole and lay the pipe, and they easy job come and pull wire and fix their pole only. I thought the pole they have their own truck to dig? Why I need to dig? Or maybe he see us as young and naive so wanna take opportunity. But whatever it is, the owner said its way overpriced. She called one of her family member and that family member is also shocked by that amount he quoted.

From meter to DB is no problem, that one I know, even the previous contractor used jointing kit for that. My guess is when the previous tnb contractor did that the 4core 16mm2 wire was short, so hence why they used jointing kit into the house. it was right smack in the middle of the driveway. lol. But I already advised the owner that the best is still running on the sides, because these things we cant tell. And since also I will be running the new auto gate wires from the sides, so hence why i will lay the 4core 16mm2 cables roughly at the same area also. Not next to each other, need some spacing also.

I usually use Mega cables, I do not use other cables. I dont cheap out on this. lol. Anything happen owner come find me man. lol. Dont play play. Its only the incoming from TNB. I would accept if its like RM5k+-, but not RM10k for a pole and wire. lol IMO la..

Possible to do that? How would I go about getting a recertification from TNB? Im planning to call a few TNB contractors and find out. Hopefully tomorrow they will provide me some solutions.

Oh. Thats good to know. I think the owner wont mind a few hundred bucks, shes prepared to spend about 1.5k for tnb shifting. If thats the case, do i engage another tnbcontractor to come and inspect? May i ask what is my next step now? Im thinking to walk in to the nearest tnb contractor office and ask.

Okay bro. Thanks a lot man. I'll go enquire a few tnb panel offices from their contractor list and see if they can assist.

Update: I contacted one tnb contractor from their list, they quoted my client 4.8k for laying the new GI pipe, rewire, new board, new outgoing wire into the DB and necessary works. I think its a reasonable pricing. 😅 what do you think?

Nope, doesn't sound right that the Neutral busbar needs to be replaced. If it is sparking why not just redo and tighten back the screw terminals? If an individual screw terminal is damaged, why not just move the slot, as you have so many empty ones?
(FYI I am not an end user just giving my so called "opinion", but a tech in the industry)

Hi guys, anyone familiar with electrical wiring. Hope someone can help out..

I got an oven from China , rated 220v with power output 3200watts.

plan to change the oven's default plug (250v/16a) rating to the standard 250v/13a so that it can fit into the wall socket
Given we are using the standard 240v, that means this oven will be running on 13.3 amps. Which is higher than the 13amps rating

Is it ok if I were to run the oven slightly above the rated amps?

Or should I change it to the 15amp plug

Reason for asking is because I've noticed similar oven (3200w) sold on shopee using the standard 13amps plug

Hi for a old teres house old meter upgrade to 3 phase how much does it cost? My tnb person quote me rm5000

He said
Rm2500 tnb
Rm1000 tnb form
Rm1500 wiring from meter board

This reasonable?

A 40+ years old house, not sure 40A or 63A ... they will change the meter thing.. is it DB?

Anyone know how to to check the max load on TNB meter ? Is this means single phase with max load 100A ?