erm, this one based on the boss is ori and sirim approve, selling at dealer pricing. usually the price is hw much? maybe later i snap some photo and see.

you paid finished before he done his work? 

At present moment have to live with it lah.
Money all paid... and i mean ALL PAID 

I checked with my contractor(very very close friend with me) he die die also don't wan to help me to convert 3phase. 3 persons only staying in a hse, why waste $$. But I was thinking, to add fuse box & standby for future use.

Yup, just a short while high peak, later it will goes back to the normal A.
That is why usually those contractor will ask the house owner try not to ON a few units of aircond at the same time.

Wonder how can the house owner switch on the same time? Even after power trip, the A/C auto on is also random timed, that was one of the reason the random switch on time was design.

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Added on November 19, 2012, 1:47 pmAh well, maybe we have many well to do home owner, target to have lots of high HP a/c switch on, and few hundreds lights switch on daily. Ok to pay for TNB.

Maybe I should buy TNB share already

It is possible i think, just the chance is super slim.

Then we confirm here, 3 phases is not necessary unless under 'special' circumstances. 

If my monthly bill is about RM250 with total usage about ~600KwH. Can somebody help me calculate the current load on the single phase?

sifus,

would like to share my experience changing fr 1 phase to 3 phase. i had no idea the financial impact until i went thru the ordeal....All below are TNB cost alone.

Just renovated my semiD house. Since I have 13 AC plus some other equipments, I decided to change to 3 phase.
1. TNB Meter location was at next to one of the gate pillar. Since I expand the gate, I need to relocate the meter (and change 1 phase to 3phase meter). The cost to relocate the meter is a whopping RM8.5K - just to terminate the old 1 phase and relocate.
2. Cost to pull new 100A cable (3 phase) from TNB substation (50m away) to the new meter is another RM8.9K. This one is really bothersome as TNB needs to apply permit from local council to dig the road etc.

Work scope 1 and 2 involved two different departments from TNB.

I am still waiting for TNB to lay the new cable and currently my house is powered using the old 1 phase still. Note I am not using all the ACs, the most is 5 AC at a time.

My question: is item 1 is really reasonable/necessary - I cannot believe 8.5K just to terminate the 1 phase cable and relocate. Any feedback appreciated.

My house was caught in fire 3 days ago because of newly install TNB meter. Luckily there was no one injuired in this incident and only my shoe rack were burn completely,heavy duty tiles are crack, my ceiling turns black, fortunately I didn't park my car near there but I am really really angry and frustrated with TNB and contractor "Tai Chi" style working attitude. First this TNB blame us of overloading the meter. Come on lah...my husband and I were not around. Nobody was in the house. How to overload?

Then wireman contractor saying that not his fault, definitely can ask TNB for compensation. What he did? He took some photos, collect evidence and so on.....

Then he ask TNB come to discuss with us. You know what the TNB guy saying?
He said it caused by internal problem 'malapetaka' or is 'natural disaster'.
"The spark came from the TNB meter ..but... because of the shoe rack underneath then cause the fire happen." Then the contractor added:"might because of some papers and other flammable material putting on top of the rack."

Their negligence is jeopardizing our safety.

Think also need to see where the supply is. If the house is first half of the entire row of the house it need proper "solder" or sealing material. If after that the supply current have drop, proper tight screw to join both the cables are good already. But they have to measure the heat for safety.

I have test using the laser heat measurement tool (borrow from my friend workshop), few round test the measurement on the join box look reasonable. hopefully stay like that.

the bigger fuse can take it. but can ur existing cable take it continuously? even if u change to bigger cable, u still cant change the incoming, as it is TNB's property.

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Added on December 19, 2012, 12:21 pm3 phase is not needed, if:

a) ur load can be handled by single phase
b) u dun need 400V supply

fixed

ok fixed. thnx n sorry for that.

last time was 415V, now its drop to 400V. simple as that.

neighbour got 3-phase will affect my house?

ozak,no ar gonna reno house soon so i tot wanna save money n upgrade if needed since need to do rewiring anyhow.

if hse haf 1 freezer n 1 fridge ok rite if 1 phase...
adi planned to do extension coz ori hhse design waste alot of land area =(

recently i heard TNB giving free installation on 3-phase, is that true?
http://www.sinarharian.com.my/nasional/tnb...16-jan-1.119588