Hi sifu sifu sekalian,

I'm doing re-wiring for my house and i got the quotation from my contractor.

As i've zero knowledge, appreciate if anyone can advise if this is reasonable.


Also would like to know if this is up to the latest ST standard


To supply and install HAGER IU52 4X13 way METAL DB Box,
63A/3P Isolator, 63A/4P ELCB,40A/4P ELCB,10A MCB-6,
20A MCB-23 ,32A MCB-1,Copper bar -1 2units 2units 2,450.00 4,900.00
1u Labor to install Down light , wal light,stair




This post has been edited by oRoXoRo: Sep 16 2022, 06:24 PM

Get few more quotation.

To conform to ST standard, all items (wires, switchgear, conduit, methods of installation and methods of wiring, even where the wires are buried/concealed, etc, etc, etc) must be SIRIM certified and following ST installation guidelines. This can't be determined from your information provided.

For example, your quote does not specify the brand of wire used, meaning it is impossible to know if this follows ST guidelines. (SIRIM publishes the list of manufacturers compliant to their certification)
Similarly, the size of wires (specified by the Cross Sectional Area of the conductor) being used for each circuit (lighting, power socket, water heater, etc) is not specified to determine ST compliance.

Btw i am going to use storage water heater, so from the quotation i wont know whether my electrician is using RCBO 10mA as well right?

Do i need to request for this?

Ask them for a complete breakdown of what they are installing.
This is not enough information and quite vague.

If you look at the line item #8 "1hp - 2hp Air-cond point using 2x2.5 mm PVC cable" this is how the quote should be done so you know what wires are being used. (although 2 wires only? Not 3??)
Similarly, the 63A/4P ELCB should be listed with complete information, and so should the wiring for your water heater.

Look, if I were quoting for a job, I'd gladly list "Water heater point using 3x (L,N,E) 4 mm² MEGA cable with Schneider Vivace 20A dual pole switch (with neon indicator), c/w dedicated Maxguard 20A, 10mA protection RCBO in DB".

You're paying for it.... ask for full information, and in writing. Good luck.

my contractor quoting this pricing for electrical work for my house renovation:
- wiring point: RM75
- power point: RM150
- aircond point (1hp): RM280

assuming it's following ST guidelines, are the prices reasonable?

thanks

Roughly the same price as mine so i guess thats the market price now

Spot on!

AC point make sure include 4-wire IDU to ODU for true inverter support.

Ask what brand of wires being used as there are a lot of substandard cables
Also your quote for RCD ["ELCB" need to specify 30mA otherwise they simply put a useless 300mA at half price]
30mA save lives, 300mA died 6x before tripping - humans start to die at just 50mA leaking thru the body

sadly, im using one contractor so the electrician is the sub con.

They cant give me detail breakdown as well. You know those uncle electrician.

But in general, they told me that they will be using mega cable.

You seem to be going to great lengths to defend your contractor. Maybe you don't realise that the quote forms the basis of the contract between you and your contractor. Maybe there is some other reason....Either way it's all cool with me as I'm not physically affected.

I just hope there isn't another thread in the future about what action to take when your contractor didn't fulfill something not quoted.

PS: I'm an "uncle electrician" but I keep up to date with all rules, am qualified, have certificates, fully computer literate, and try to provide everything to the last detail, even providing 3D drawings if necessary. That's a lousy excuse to use.

No man, dont get me wrong. Very appreciate your feedback

But i am in a very stressful situation now. I did ask my contractor to provide me with better quotation and he hit me with all sort of excuses.

During inspection before he conceal all wiring , i will check again.

Once the wires are laid I am sure he would give all sort of excuses to even bother changing it.

If he is already giving you stressful situation before the job starts, god knows what is next.

I demanded a lot and worst come to worst also in WhatsApp for some smaller stuff.

The price ranges you received seem to be Klang Valley pricing. You need to specify the type of wires. For example, the Cat 6 network cable, specify Schneider or BELDEN.

Most important things: you have to watch up those subcon.

For my case, the main contractor subcontracted to a local Chinese Chargeman, who has the license to sign Borang G. Then, this folk sub to foreigners. The subcon let the foreigners to do everything. You have to specify to your main con that the local subcon (which will sign your Borang G) to supervise the foreigners.

You can see what happened to my house:

https://forum.lowyat.net/topic/5292604/+20

I got a new electrician in for 2 weeks. More nightmares, all our house wire are connections. Worse, the foreigner loop 20 over light points for one circuit and without the yellow lines. You need to ask them how they loop.