Nope, it does not.
3 phase the only advantage is you can run the whole house with air conds. Single phase are limited to 2-3 max.
Also for load balancing, make sure the wiring work done properly, else if still 1 phase only working, it defeat your goal.

Nope, if the 3 phase wiring are done properly, you should not have much problem with it.
Only you have to worry if there's only 1 single phase run all the air conds, sure it will be high load on that particular phase
Usually you will have such problem when the wireman wants to make fast money

If the main fuse are 60A or higher rating, for sure single phase also enough.
But once your house caught fire, insurance won't pay you.

The fuse does have a rating, just have a check on it.
Even if the main fuse is rated high, does not means the wire rated to it. So you still need to lay new wire and their own 13A fuse for air conds.

Then should be good already.

Is on the TNB application form on the requirement.
And insurance company will use this form and fire department's report to decide pay or not pay in case of fire.
Also, I do know that with single phase I can run 5-6 air conds without problem but when something happens I don't want insurance company have an excuse to deny a claim.

This post has been edited by supersound: Aug 13 2014, 02:27 AM

http://www.tnb.com.my/residential/manage-y...upply-type.html
You can always ignore this and your agent never tells you the truth.
Again nothing happens everybody happy, something happens you enjoy it.

You are right, but again TNB already stated the guideline we "should" upgrade to 3 phase once we exceeding 3 air conds.
Your calculation are assuming that it is good quality of copper wire being used. It not even taking in to account of the qaulity, length and efficiency of the wire. Where's the heat generated calculation?
In some sense indeed we can't overload a single phase, but we can overload the wire which later overload the main fuse.
For sure insurance company never stated the rule on this as they release the claim's payment based on official report by government. Have you ever claim insurance before? The company need 1 single word only to deny a claim.

I forgot where I posted that guideline, maybe a find using the search function will help you to get the answer fast. I just posted it recently.

ELCB no need to do anything, keep that 40A, lower will be always better.
Did it simply trip every now and then without lightning strike? If not that's mean you are not pulling true >40A yet.

If you are going to use single phase without upgrading, then just use the 40A ELCB.
No doubt the main cable from TNB can go upto 100-200A, but then for single phase to pull full 40A all the time are quite challenging part. If you can pull that, your bill will hit rm800-900 monthly.

Yup, 3 phase wiring done nothing good except you have load balancing(if the wireman do the job rightly), claiming insurance incase fire easier(as everything follow the rules)
But will using 3 phase makes our bill cheaper? I doubt so, since the meter are digital and no other independent party can verify that.
But used my company's FLIR camera to check, my incoming cable from TNB meter are "colder" compare to my neighbor(we have similar air cond setup, upstairs Panasonic and living hall 2HP air cond). I asked him to run on both the air cond at 8-9pm.

That's why you must know what does typical current draw means.
Under normal condition, all appliance won't pull max current all the time unless shorted.

Using water heater 24/7? No right? Then no need. You only need to consider 3 phase if you are using 3 air conds all the time.
But 3 phase wiring are quite expensive to do. The good thing is, your wire can last longer since they are not stressed.

Yup, that's right.
Only some mad people will on every thing at the same time.

Anyway, every January I'm getting some refund, as far as I heard, it is the deposit I put in last time(rm800).

Yup, it is stated as "pelbagai"
If charge extra, I make noise, if get back money, keep quiet.

Let's wait for another 4 months and see.
But you need to fullfill certain condition to get this, if not mistaken it will be prompt payment(now in order to get rm50 CB, every month will pay extra), use above certain limit(so in some sense you need to waste)

Sure or not? Which part?

Yup, that's right. Need to optimize my cash back and to have some online purchase, so need to prepaid most of the time.

40A@240V can fry the whole house already
So is nothing wrong to use 40A, in fact it is safer also. As for an appliance to pull 40A, only under shorted condition will do like this.

Our house power supply is 240V.
Most of the appliances in our house only pulling 0.2-1A, while water heater, washing machine, air cond will be more, maybe 2-5A during normal run.
So, 40A direct pull is like you simply pull a wire and put it to another(life to neutral direct). The heat generation will be very high and melt the wire.
I've seen this in my work place. The copper also melted.