You running hotels? Big bungalow one meter enough. Say one phase you use 40amps you use all 3 phases is 120amps that is 27+kwatt. Not enough? You can max it to 60amps per phase.

Additional meter may only allow if it is commercial rate, I ask before when the contractor came change my analog meter, because 1-300kwh are subsidized and if you have more meter you are enjoying from 1-600kwh. Tnb and gov not stupid.

3 Phase wiring, does not mean you have to use 415v, Each phase is still 230. Unless you use all the 3 phase in the same equipment you equipment need to be build to support 3 phase and voltage of 400v.

Now TNB is 230 / 400 It was made public many years back. Therefore our current will be higher. If not mistaken it allow variance of -6% - +10% The change is to inline with the international std.

This post has been edited by weikee: Jun 26 2014, 11:57 PM

I don't see any reason why insurance won't pay if it run within the limit, and with proper wiring. Unless House owner using wrong wire sizing maybe. A single phase max fuse is 63amps with the correct wire sizing. If you have come across such information from Insurance do share with us.

Please tell me which line state not support of 3rd ac?

http://www.tnb.com.my/application/uploads/...cation_Form.pdf


I have also consult General insurance agent, nothing to do with AC quantity installed.

Single Phase are allow to go up to 63Amps, giving 25% safety margin is 47.25 Amps, and using 230v, is 10867 Watt. it can drive 10 HP in total.

Is still more than 3AC

The 50Amps is after the safety margin of 63Amps

This post has been edited by weikee: Aug 13 2014, 10:11 AM

What is fiber/tel line got to do with electrical?

Depend where you want your equipment at. It usually at TV area because unifi come with TV subscription. Unless you have already prepare LAN point.

Sure.

Rccb will be better. It have to wired on the output to the water heater. Not in the distribution box.

Electric stove can pull up to 15amps some 20amps. Instant Water heater if switch to max (rainy) can go up to 13amps constant up to 15mins some people take 30mins bath will draw 30mins of 13amps

Wires will last if use correct rating.

For stove depend how many burner used. Water heater depend weather. If using water kettle is also around 10amps.

Check the product spec.

Using the existing cables really depend, if many already using 3phases on the cables you may have to tap from the pole. Tnb will be advice you.

Is your internal wiring already made to accommodate 3phases?

This post has been edited by weikee: Sep 14 2014, 05:54 PM

Tap from the poles need more work, and will cost you substantial too. Meter need to be outside.

Do yoi know your current main fuse ratting is? 32 or 63?

If your house only have 10+- MCB, no point adding 3 phases. You need to know what is your average load, and what is your peak load. Is the peak load that are important.

If the cables across houses are still withing limit, tnb can use the existing cables. If few others houses already on 3 phases, they will ask home owner to tap from the pole, and the installation fees are higher.

Will be more expensive, how substantial I am not sure. Do update us the price, good to know. On the +ve side, it look much better if meter are outside.

For single phase, cabling after meter into house is prepare by house owner. Assuming 3 Phases should be the same, and do over spec the cable (thicker than standard cables)

16mm2 is the standard use right? Now I see many only use 10mm2.

25mm2 will be superb Can take up 80Amps per phase load no problem

Invest one time can last many years.

We got sunlight also cloudy too.