Few Thousand? that is expensive. Thousand plus is ok, unless your gate to the DB is like 50feets away. These cable are expensive, and do take note not all location TNB allow you to use the existing cable to be 3 phase. Depend how how the current load, if the load is already near max they will ask you get direct from the utility pole, and it will terminate to your front gate. unless you don't mind 4 cable come in between your house from the pole.

TNB recommend max 50A for single phase.

http://www.tnb.com.my/residential/manage-y...upply-type.html

Make me wonder too.

My household equipment if fully switch on till take up about 16,000 Watt. But that if I switch it on. I doubt Usually highest usage is about 8000 watt for short period of time.

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Added on January 10, 2012, 10:41 amBTW, the fuse is rated much lower, think is 43Amps or 45Amps. Mine is on that number. Is 65Amp common for single phase?

meaning as long as I did not turn on everything at the same time... it should be ok rite...

ok thanks

meaning? with such config 60A single phase should be enuf?

i do not like the tnb either..but what to do..they monopolized..

Yupe..thats the main reason..i have no choice but to change d wirings..

this is 2nd time I heard about 3 phase save money (in term of electric bill)? how it's possible? anyone care to explain?

so you got 20% after changing to 3P..

it's still confusing.. Can't see any connection of lower bill when you appliances operate with enough amp.

Theorytical your calculation may seem support single phase.
In practical, do all your electric use and on at same time to cause power overload ?
If you has heavy power usage but not all use at same time, then single phase is enough for it.
My house got 3 fridges, 4 unit 1hp air cond and 1 unit 2.5hp air cond. On daylight we just on the fridge and at night
only 2~3 air cond will use. Sometime will cause electric trip. For average monthly bill is RM300+
Almost every 1 years+ need ask technician to come my house to check on compressor of air cond and fridge because it not function.
After that change into 3 phase, the electric bill gone down about 20%.
My fridge and air cond now no need always call technician to check within 2 years.

Agree with what you explain here. But if your wire have conceiled in wall and need hack ,reconceil seem troublesome else using casing rewire again.
Thats why before house renovation, plan well on which phase you needed. What type wiring you conceil. Think for long term.

As i mention, my bill for single phase was RM300+. Only 3 fridge was on 24 hrs, air-cond only at night and not fix 8 hrs maybe 2~3 hrs or sometime didn't on at all.

Does 3P make a different? Let's said I use 60A, then change to 3P still use 60A. Same wire, same load = same heat? Something still missing I believe. Just wanna make sure, I understand correctly what 3P can do and cannot do.. My facebook Taman full will this discussion so wanna give feedback to them also..

This is what 1P vs 3P about.. 3P can support 3 time power load..

Suppose the power is over 1P can handle.. The fused will be burned.

If your house never experience power overload.. as I said let's said below 60A around 50A. Does changing 1P to 3P will affect electric bill?

just starting to survey for products... hager 20A mcb is rm7.80 each. is the correct price? while eps/maxguard or amber is just rm4. hager can be used in sg but eps brand is not approve in sg.