yes, add on something on the db box and apply 3 phase, total need to pay for both contractor and tnb deposit. all for 3300.
is it reasonable?

What you add? If goose was early design for single phase, doing 3 phase required neatly rewrite half the house. If rewrite half the house this is too cheap to believe.

it is not rewiring, my house is 3 phase ready,
the technician say they will add extra db box for 3 phase support and outside to change the new meter.

is rm 3300 is reasonable? he suggest to put 60a x 3. He say no point go so high for 100a x 3.

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

Truly understand, now I cut my budget cannot go holiday this year. Still got some more improvement to do.

Try call your contractor with another number.

Man, why so many con man around. Sick of it.

Go and stalk him.

Tried many times. no answer

Guys,

I am currently thinking of renovating my house in USJ. one of the things i am thinking of doing is upgrading the electrical wiring from single phase to 3 phase, but not too sure whether i should do it or not.

I am looking to put in 1 (1.5hp) air con, 2 (1hp) inverter air con and 1 (1hp) air con plus a joven 50 liter water heater, plus a clothes dryer plus 1 electric oven.

at least 3 aircons will be running full time from 5pm until 8am the next day, water heater for 3 bathrooms for normal mandi and clothes dryer pakai maybe 3 times a week.

My electricity bill never less than RM300.

Do you think single phase is sufficient or should i upgrade to 3 phase.

definitely 3, ajai

what about 3 air con, 2 water heater and 1 oven? Do i need 1 or 3 phase? Does TV and air purifier takes into account as well?

Depend your Ac power. If 3 units of 2hp default is on the limit for single phase.

This post has been edited by weikee: Jul 13 2012, 03:57 PM

i think 2 of it will be 1hp unit and 1 2hp unit. But not all will be on at the same time. so 1 phase should be sufficient i supposed?

1 HP say 4 amps each, 2HP say 8 amps, heater say 15 amps each, fridge say 2 amps but only run short hours per day. Oven I can't recall think is about 10 amps.

So in total if you switches on concurrent is about 56 amps. Lights and TV maybe 3 amps. You are about there of single phases if you switch all the same time.

sorry.

This post has been edited by Eng_Tat: Jul 14 2012, 09:12 PM

how many amps are there in a single phase?

I think the limit is about 60 amps. You can check the fuse that is plugged into the meter board.

According to TNB, they advise switch to 3-phase if your usage is above 50 amps:



Bear in mind, you have to switch everything on at the same time.


This post has been edited by kamion: Jul 16 2012, 02:58 PM

hi all,

need quotation for additional ceiling fan points, aircond points.
Could someone quote based on tghe attachment? please refer to red line for the additional points. thank you.


Attached File(s)
 wiring.pdf ( 231.49k ) Number of downloads: 98

Planning to install 1x1.5HP inverter and 3x1HP Inverter...AC will turn on all at night ...other appliances includes 1 medium large fridge ..and 2Desktop PC plus 1 laptop with other sapsapsui things like fans and lights,modems...pls advise is it sufficient in a single phase electric supply??

my house have 5 aircon and 2heaters, but then we still using single phase only. i dun think such few electrical items will need to use 3-phase.
btw, hows the 3phase wall socket?? is it all sockets in ur house been changed to commando plug socket??

---

Added on November 3, 2012, 9:10 pmso how is the wall socket looks like?? is all of the socket have to change to commando plug wall socket??

This post has been edited by georgeOYS: Nov 3 2012, 09:10 PM

there are no different between single phase and three phase wall socket. In fact, all home wiring are all the same. The only different is the wiring at ur fuse box.

Yes, u still cn run 5 aircon and 2 heaters, it all depends on how ur electrician run the wiring in ur fuse box, how he separate or loop ur wiring of ur circuit breaker plays a major part.