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Renovations 3-phase wiring

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tomjason
post Feb 22 2012, 11:42 AM

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QUOTE(ameeyn @ Feb 9 2012, 02:30 PM)
I just demolished and built a new house but im still using the single phase for the construction..im going to start my wiring work today..im going to place the meter outside near the tnb pole and do 3 phase wiring works..do i have to submit any documents when applying to 3 phase upgrade at tnb?
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just to share my experience...since you are doing new renovation..if possible put 2 DB inside your house...one main DB at infront house then second DB at the back...ensure that your new DB is 3 phase DB. The purpose is easier for you to control...i design my house using 2 DB. If possible place your meter at the gate. The cost to apply and install new 3 phase meter is varies but mine is about RM2K. My meter is at the front of the house. I renovated my back house. Later when i renovate my front house then i will change the meter at the gate.

TQ
tomjason
post Mar 13 2012, 11:16 AM

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i hv just change to 3 phase...i installed 2 DB inside..one infront, the other at back (direct 16mm cable) from meter. I got 5 airconds and 4 instant water heater, since i renovated my house might else change to 3 phase. It is required to change to 3 phase, incase your power consumption over 60-63 A (single phase). Else failed to change, sometime, you have experience MCB tripped cause by overload.

My design with 2 DB somehow (direct pull 16mm cable) save my electricity bills.


The promotion TNB has ended. During the promotion, user save about hundreds RM for fees.

This post has been edited by tomjason: Mar 13 2012, 11:58 AM
tomjason
post Mar 13 2012, 01:58 PM

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everything is depend on your usage demand...if your usage not so big..no need 3 phase..if you are having big renovation better opt for 3 phase...who knows your future usage demand...
tomjason
post Mar 13 2012, 02:05 PM

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if your usage if high for safety reason go for 3 phase..if overload dangeorus..can cause fire...example..if your got 5 airconds and 4 water heater..and other..60Amps is not sufficient...if overload can cause fire..also overload your wiring...
tomjason
post Mar 13 2012, 02:59 PM

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having 3 phase is like car and MPV..if you have more children sure you like to upgrade to MPV to cater the children...

more over upgrade to 3 phase is one off investment...and the cost is not much..for my case for processing is RM1500, deposit RM500. for me..it is 'rugi' if you are having major renovation but do not want to upgrade to 3 phase..for your future demand same as MPV..smile.gif


yes there many cases burn due to wiring such as overload etc..mostly 'rumah papan'....

This post has been edited by tomjason: Mar 13 2012, 03:00 PM
tomjason
post Mar 13 2012, 03:12 PM

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for 3 phase..you do not have to change the wiring..just change the MCB for 3 phase...around RM500-RM1000 depend on how many CB. So for my 3 phase for my existing house (not inclusive new extension house) is RM 500+RM1500 (processing)+RM500 (TNB deposit)...

This post has been edited by tomjason: Mar 13 2012, 03:14 PM
tomjason
post Mar 13 2012, 04:17 PM

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while doing the load balancing for my house red,yellow, blue with my wiring man....i have tested on all the load aircond, lamp etc, kecuali water heater...the total current is about 40 Amps..for me its justify for my house to have 3 phase.
tomjason
post Mar 13 2012, 04:32 PM

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QUOTE(weikee @ Mar 13 2012, 04:26 PM)
40 amps justify smile.gif Like that I run about 50+- when switch on all a/c and light. Need to upgrade already.
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yes..cause i have not on my water heater, use all the plug, sound system. etc...i m thinking future....maybe got function in myhouse later ..etc etc...biggrin.gif


This post has been edited by tomjason: Mar 13 2012, 04:34 PM
tomjason
post Mar 13 2012, 04:40 PM

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i do not like the tnb either..but what to do..they monopolized..
tomjason
post Mar 14 2012, 07:54 AM

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QUOTE(coconutzz @ Mar 13 2012, 07:03 PM)
ahaha...after giving TNB money..TNB will give to Govt...Govt use it to buy cows...and then dunno somehow cows turned into concrete buildings smile.gif


Added on March 13, 2012, 7:04 pm
Doing rewiring for safety reason bro...my house is 30+ yrs..i m going to reno it...changing pipings and wiring...
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your house had to change wiring over 30 years....
tomjason
post Mar 14 2012, 09:55 AM

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this my design..so far seem save my electricity bill...waiting my next bill.....got 2 DB 3 phase.....more stable......less trip when lightning..Attached File  DB_connector.doc ( 21k ) Number of downloads: 161


This post has been edited by tomjason: Mar 14 2012, 10:04 AM
tomjason
post Mar 14 2012, 10:07 AM

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normally before this...my area is lightning prone..usually when lightning normally will trip..but now no more trip...before this i put lightning arrestor at DB..the arrestor also kena kilat..now no more arrestor.
tomjason
post Mar 14 2012, 10:21 AM

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QUOTE(weikee @ Mar 14 2012, 10:13 AM)
From my humble knowledge. lighting strike not related to the old or new live cables or neutral. Not even related to 3-phases or single phase. Very much on the soil, and earthing. Your rewire may have fix the earthing. It could also be your previous Circuit breaker is due for change.
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my area is lightning prone area...i observed my old DB was not faulty.....the severity of lightning in my area is few month ago until the outside ceilling of my jiran pecah...

 

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