How much that will be to install and will the electricity will be cheaper. TS have 4 AC, takut macam overload?

my banglo.

pay 3k to upgrade

4 AC still less than 60A (single phase max)

I want to install 3 phase also. Ready for electric vehicle.

not incl. dryer, 2 x fridge, 2 TV (1 x75 inch TV guy ) , plus other house hold. My worry when dryer run with all AC concurrently. That day sudah kena main main switch burnt

And now another for my son hybrid car... when he at my house.

This post has been edited by sdin3269: Apr 10 2021, 06:07 PM

I'm on 3P with 5 AC, 2 fridge, 1 washing machine & 7 computers running 24*7. Bill comes to RM 600 monthly.

if 3 phase make sure the 4 A/C distributed among the 3 ; not just on single-phase... else its unbalanced....

even 4 ac on single phase no issue.. just make sure its DIRECT to MCB.. not to the existing wall switch/plug ... only use wall switch for 1hp and below...

Noted

You mean AC direct from MCB?

This post has been edited by sdin3269: Apr 10 2021, 06:07 PM

Single phase max load can be up to 14kw.

if let say even u use 4 2hp AC that's only 6.4kw load. then also depend on how you use your appliances.

normal 1hp ac is only 2-3amps (check the label at the side of your ac)

you can have many many aircon running at the same time.

My place kenot 1 phase, AC already 8 most are 1.5 or 2 HP. Water heater also have 5 ady

Fridge don't take much power though.... less than 1kW for 2

This post has been edited by rtk74: Apr 10 2021, 06:37 PM

Cheaper?
Lol no

Hmm buy my MCB kaput for overload, TNB advice to change to 3 phase.

electricity will not be cheaper

A good read.


https://www.recommend.my/blog/malaysia-house-3-phase-wiring/

lel.......as if you on everything at the same time.

when mcb trip you know you over load a circuit la

Electricity bill got nothing to do whether 3 phase or 1 phase

Of course if u think u got 3 phase then full blast your ac 24 7 then different story lah

This post has been edited by yeapsc73: Apr 10 2021, 06:34 PM

What I meant was my place we added 3 phase before we moved in. Kenot 1 phase due to too much stuff

yes.. dedicated miniature circuit breaker... dont loop to other equipment

tnb will always recommend 3phase.. they earn more.. remember each phase will have its own meter ; and it will add up these 3 for u to get ur bill...

hence its very difficult to reach the lowest tier unlike on single phase

its something you buy RM1mil insurance ; you pay for the high premium.. but will you ever hit your RM1mil hospitalization cost? maybe..or maybe not

similar.. will you max out your single phase? maybe or maybe not...

Theoretically, you could bypass the tnb fuse, and won’t ever reach the max. Unless you draw so much that you blow the distribution fuse. But to do that you either making a reactor or something lol

This post has been edited by Sien99: Apr 10 2021, 06:40 PM

Safe limit for single phase is like 50A total.. thats like a continuous 12kW of electricity usage..

limit will depend on incoming wire size and hence the size of cut-out fuse installed before the meter

Wrong info

just recently upgrade, 3.5k

TNB meter burnt, first the internal MCB then TNB.


My electric appliance

Always/ mostly in use
4 AC
2 frigde
exaust fan (kitchen when cooking)
termo flask ( always on)
Microwave ( when cooking)
3 water heater ( shower time only)
2 fish pump 400w (24hrs)
1 x dryer ( day time)
1 x washing machine (day time)
2 x TV (almost 24 hours)
2 Laptops night time
2 spotlights (night motion sensor)


Ocassionaly
Electric car charger

This post has been edited by sdin3269: Apr 10 2021, 09:40 PM

RM3.5.... from TNB connect to MCB ?

lel.....

layman burn means what?

if arcing causing melty plastic it is due to loose connection, not due to over load.

Have to replace fuse at the TNB meter

no short circuit in system?

no hanky panky noob or fishy installation at mcb box?



if installation is proper the indoor mcb should trip to protect the cut-out fuse

To change to 3 phase, basically two things need to be done..

1) apply to tnb. Tnb then will pull new 3 phase cabling from their source to your house tnb meter, then tnb will change to 3 phase meter. U need to pay some connection charges and additional meter deposit to tnb

2} your own electrical contractor works. Need to change the cable to 3 phase from tnb meter to your house DB box. Need to change the DB box to 3 phase type. Need to reconnect back all the wiring to the new DB box

Duplicate post

This post has been edited by yeapsc73: Apr 10 2021, 08:18 PM

So need to pay also item 1)?

yes

recommend you to go for 3phase in this case. new ev chargers are 3 phase

how did you get 20a fish pump??

cant be 20a la........

connected with a 20a switch maybe la

3 phase , each phase 60 amps is 180 amps, like commercial use, can't overload

Not necessary. Got 7kw 1 phase and 22kw 3 phase charger, depends on the car model requirement

3kw also got

Ya this one portable type using 13A plug, probably need to charge half a day

Just upgrade.... EV fast charging need 3 phase

we are now talking about 180kw water cooled charger hehe

This one cannot connect to your house DB lah adui, it is more than 300A 3 phase, for commercial charging station only

Most (if not all) phev car can only take 1ph charger

Only some but not all full ev car can take 3 ph charger, how mnay full ev car in Malaysia?

petrol pump faster.

equivalent to 27000kw

opps typo should be 400w pumps

Actually full load 5AC+2 3300W water heater recorded w clamp meter for my house only 33A cumulative.. single phase 63A more than enough..but if 40A x1ph maybe not enough

Wah sounds like bitcoin mining!

1ph 3ph no diff just that 3 phase can support your mansion to have 20x 1hp aircon

Nowadays most appliances lower load especially aircon n fridges..WH unchanged but how many WH can one install in a home

Dangerous as its limited by cable size as explained by slimey below.

cabling + installation services

I think better check your current supply amp whether its 40A or 63A first.
If 63A supply it hardly max out unless you really run
5AC x4-5A ea, 20-25A
2WH x16A, 32A
and vacuum 1600W 4A
and electric kettle 1800W 4.5A
n rice cooker n slow cooker n oven n air fryer and electric grill and bmw 330e charger all together at the same time.

hi...do you have the breakdown cost?

I am wondering what type of cabling is done because for my case, i got charged higher...but again, it's just mentioning cabling also. do you know what are the extra cable?

also, if we change from single to 3 phase, does it mean we need to install additional wire from the 3 phase into our house overall? hence we need to expect additional cabling or wiring charges for whole house? or actually the cabling/connection routing just happen from meter to DB box only?



This post has been edited by kevyeoh: Dec 22 2022, 01:19 PM

dont have the receipt anymore, and cant recall exactly

but my place was recently built back then and house cabling designed to take single phase upstairs and 3 phase downstairs (2 meters)
what they did was come and connect the cable from main to the meter
since main for my place is connected house to house, not the usual pole to house, they re-did, replace, and tidy some of the cable connected to neighbour house to make is safer for everyone

another thing I recall is they only cover a few meter of the cable (thick), any extra length needed is chargeable

U know copper price shoot up very high right?
Cabling from meter to DB box only but of course u need to distribute the 3 phases to your whole house from DB box as well..

This post has been edited by t3n: Dec 22 2022, 02:22 PM

Usually how it take for TNB to change meter? I still waiting....