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 3 phase installation

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fireballs
post Apr 10 2021, 09:11 PM

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QUOTE(yeapsc73 @ Apr 10 2021, 08:51 PM)
Not necessary. Got 7kw 1 phase and 22kw 3 phase charger, depends on the car model requirement
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we are now talking about 180kw water cooled charger hehe
yeapsc73
post Apr 10 2021, 09:18 PM

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QUOTE(fireballs @ Apr 10 2021, 09:11 PM)
we are now talking about 180kw water cooled charger hehe
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This one cannot connect to your house DB lah adui, it is more than 300A 3 phase, for commercial charging station only
yeapsc73
post Apr 10 2021, 09:26 PM

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QUOTE(Fattchoiburger @ Apr 10 2021, 09:11 PM)
Just upgrade.... EV fast charging need 3 phase
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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?
SUSslimey
post Apr 10 2021, 09:38 PM


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QUOTE(yeapsc73 @ Apr 10 2021, 09:26 PM)
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?
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petrol pump faster.

equivalent to 27000kw
SUSsdin3269
post Apr 10 2021, 09:42 PM

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QUOTE(fireballs @ Apr 10 2021, 08:38 PM)
recommend you to go for 3phase in this case. new ev chargers are 3 phase

how did you get 20a fish pump??
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opps typo should be 400w pumps
SUSceo684
post Apr 10 2021, 10:23 PM

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QUOTE(rtk74 @ Apr 10 2021, 06:20 PM)
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
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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

QUOTE(sdin3269 @ Apr 10 2021, 06:26 PM)
Hmm buy my MCB kaput for overload, TNB advice to change to 3 phase.
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Wah sounds like bitcoin mining!

QUOTE(yeapsc73 @ Apr 10 2021, 06:32 PM)
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
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1ph 3ph no diff just that 3 phase can support your mansion to have 20x 1hp aircon

QUOTE(rtk74 @ Apr 10 2021, 06:36 PM)
What I meant was my place we added 3 phase before we moved in. Kenot 1 phase due to too much stuff
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Nowadays most appliances lower load especially aircon n fridges..WH unchanged but how many WH can one install in a home

QUOTE(Sien99 @ Apr 10 2021, 06:39 PM)
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
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Dangerous as its limited by cable size as explained by slimey below.

QUOTE(slimey @ Apr 10 2021, 06:43 PM)
limit will depend on incoming wire size  and hence the size of cut-out fuse installed before the meter
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thumbup.gif
jmas
post Apr 10 2021, 11:07 PM

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QUOTE(sdin3269 @ Apr 10 2021, 07:23 PM)
RM3.5....  from TNB connect to MCB ?
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cabling + installation services
SUSceo684
post Apr 11 2021, 12:42 AM

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QUOTE(sdin3269 @ Apr 10 2021, 05:37 PM)
How much that will be to install and will the electricity will be cheaper. TS have 4 AC, takut macam overload?
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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.
kevyeoh
post Dec 22 2022, 01:13 PM

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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?



QUOTE(jmas @ Apr 10 2021, 11:07 PM)
cabling + installation services
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This post has been edited by kevyeoh: Dec 22 2022, 01:19 PM
jmas
post Dec 22 2022, 02:13 PM

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QUOTE(kevyeoh @ Dec 22 2022, 01:13 PM)
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?
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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
t3n
post Dec 22 2022, 02:21 PM

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QUOTE(kevyeoh @ Dec 22 2022, 01:13 PM)
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?
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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
wos
post May 13 2025, 06:26 PM

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

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