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Renovations 3-phase wiring

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bobowyc
post Aug 29 2019, 01:05 PM

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Sorry to hijack your thread. What are the steps to get the tnb contractors to install 3phase wiring from the pole to my clients house? Area is ttdi and the internal 3phase wiring is done previously by another contractor but my client didnt do it until I started work at their place and now they want 3phase wiring. And may I know roughly how much it will cost? Any number of tnb which I can call and ask? Thanks guys.
bobowyc
post Aug 29 2019, 05:50 PM

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QUOTE(littlewing @ Aug 29 2019, 04:11 PM)
where is your meter box located now?

to apply for 3 phase - go to my tnb self service portal and register. apply from there to upgrade your power from single to 3 phase. submit docs via online process and select a tnb certified contractor. he will come and assess and do submission for you. pricing depends on tnb assessment.
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Currently repositioned to outside. But I made a mistake of not calling them first... because now may need to hack for their wiring to be installed. doh.gif lol. Ohh. Okay I check now and see ya. hehe Roughly how much would it cost?
bobowyc
post Aug 30 2019, 09:25 AM

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QUOTE(littlewing @ Aug 29 2019, 11:27 PM)
Submission fee 600-1.5k (depending how much the runner wanna charge u) - suggest u call them up before choosing one 

Tnb Contribution fee- 1.7k (typically, unless special case)

Deposit top up abt - 200
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SUbmission fee if i do through website is direct with tnb right?
bobowyc
post Aug 30 2019, 07:31 PM

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QUOTE(littlewing @ Aug 30 2019, 10:00 AM)
your online submission (free and direct with tnb) is different from runner submission AKA TNB certified contractor.
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So if i submit directly with tnb, they will also appoint their contractor to come and inspect first right?

Edit: The Account number and IC must be owners one?

This post has been edited by bobowyc: Aug 30 2019, 07:34 PM
bobowyc
post Apr 19 2021, 12:46 PM

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Hi guys, may I ask if any of you have contact for relocating 3phase wiring at the outside column from existing point to a new column, roughly about 3ft away? I called TNB to come and inspect and quote, the guy came and said now tnb regulation cannot connect their wire, need use new wire, so they gave 2 options, option 1 is to dig the road and lay the new cables from the nearest TNB pole, which will cost a whopping RM25k just to dig and replace the new wires. Option 2 is to install a pole on outside the house, which would cost RM10k+-. So my question is, is it not possible to just connect the existing wires to the new column? Would that cause issues or whatsoever? Because I saw from previous posts it costs less than RM1.5k. Not too sure if its single phase or 3phase.

Thanks in advance. notworthy.gif

This post has been edited by bobowyc: Apr 19 2021, 12:47 PM
bobowyc
post Apr 19 2021, 02:58 PM

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QUOTE(littlewing @ Aug 30 2019, 11:21 PM)
yes but TNB will only come after your tnb certified electriciant does the submission.

yes.
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Hi bro sorry ya, currently i have a project in PJ and i requested TNB to come over to shift a 3ph TNB meter from the existing column outside to the new column next to it, about 3ft away. So the tnb guy came and said they cannot connect the wire, they will need to install new wiring. And to do so, he gave me 2 options, first option is to dig the road and pull the cable from across, and he quoted me RM14k for digging and another RM11k+- for new cables. The 2nd option he suggested was to install a TNB pole, which would cost less than RM10k. My question is, is it not possible to just reconnect the wires since its just a short length away? Because the connection can be done inside the box, hence I doubt so there wont be an issue, not that I can tell, but the tnb guy said better to pull a new wire because in case anything happen, or if i engage another contractor to add the wiring and a problem surfaces, they will still ask to install a new wiring. I am quite surprised by the price they quoted, i thought it would be less than RM5k to install a pole. And i read on our forums here to shift meter only RM1.5k at most. So now the owner also headache I also headache. sweat.gif Partly on my fault for not enquiring sooner first. :\

Thanks for your reply in advance.
bobowyc
post Apr 19 2021, 05:10 PM

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QUOTE(ceo684 @ Apr 19 2021, 04:29 PM)
The headache of connections other than a direct cable is that loose connection causes fires, they dont want to take the risk and liability.
You'd also find it a mammoth task to get type approved connectors for high amp ratings i.e. not the china RM10 ones.
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So means no choice but to lay new cabling? ☹

Edit: possible to use cable jointing kit?

This post has been edited by bobowyc: Apr 19 2021, 05:18 PM
bobowyc
post Apr 19 2021, 11:46 PM

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QUOTE(ceo684 @ Apr 19 2021, 11:08 PM)
Yes best is uncut direct flight with no joinery but it really depends on which part cabling insufficient. If TNB supply to meter (meter tails) too short I dont think they will approve it with joiner kit for reason of how sure is the joinery weatherproof? If after meter it is use at own risk (I highly discourage)

If incomer (meter into DB box) part too short then just run a new set of direct cable into the house (from meter), even 16mm² also wont cost too much coz they're available in loose cut online (by meter) and in the correct colours Red Yellow Blue Black Green so dont need to purchase all 100m full length. It is not difficult to purchase loose cuts in the required length and in the correct colours. This is especially important in 3phase as phase to phase creates 415V. Bada bing bada boom for 230V equipment. I know some contractor simply use black for everything and just tape the phase colour as 1 strip of tape, but I also generally despise this shortcut as that tape may break or discolour over time.

Here is where you should never ever ever skimp on cables. Easy way is just use Mega kabel or caramay cables sahaja. Many fake SIRIM nonsense with elcheapo cable.

https://www.sirim-qas.com.my/forgery-on-license-no-pc000218/
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Hmm. I know uncut would be best, but the cables is short only 1ft, my estimation, I have yet to find the actual GI pipe in which the TNB cable is coming in from. But from where I see it and estimate, the cable length which would be short is about 1ft, I guess the tnb guy is playing safe, but that amount to redo is way overpriced and personally quite illogical. He said RM14k to pace the way for the cables, and another RM10k to lay cables. And the pole, he asked me to dig the hole and lay the pipe, and they easy job come and pull wire and fix their pole only. I thought the pole they have their own truck to dig? Why I need to dig? Or maybe he see us as young and naive so wanna take opportunity. But whatever it is, the owner said its way overpriced. She called one of her family member and that family member is also shocked by that amount he quoted.

From meter to DB is no problem, that one I know, even the previous contractor used jointing kit for that. My guess is when the previous tnb contractor did that the 4core 16mm2 wire was short, so hence why they used jointing kit into the house. it was right smack in the middle of the driveway. lol. But I already advised the owner that the best is still running on the sides, because these things we cant tell. And since also I will be running the new auto gate wires from the sides, so hence why i will lay the 4core 16mm2 cables roughly at the same area also. Not next to each other, need some spacing also.

I usually use Mega cables, I do not use other cables. I dont cheap out on this. lol. Anything happen owner come find me man. lol. Dont play play. Its only the incoming from TNB. I would accept if its like RM5k+-, but not RM10k for a pole and wire. lol IMO la..
bobowyc
post Apr 20 2021, 12:48 AM

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QUOTE(ceo684 @ Apr 20 2021, 12:18 AM)
Agreed. Jointing kit depends on whether type approved / IP weatherproof good or not. Alternatively if it is just short to the cutout fuse, can extend the part from "cutout fuse to meter" and get it recertified by TNB will be cheaper?
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Possible to do that? How would I go about getting a recertification from TNB? Im planning to call a few TNB contractors and find out. Hopefully tomorrow they will provide me some solutions.
bobowyc
post Apr 20 2021, 09:22 AM

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QUOTE(ceo684 @ Apr 20 2021, 01:04 AM)
As I recall the cutout fuse can also be below the meter. Meter has its specified height. To eliminate joints in between, as you mentioned its short by 1 feet, if they OK to use a long and tall metal meter box (the 415V type with perspex clear window) and can recertify the connection between cutout fuse and meter which (IIRC will need to be opened up and sticker broken) then its certainly a cheaper solution than digging pole or the road wink.gif

Something like this
https://shopee.com.my/product/129202704/773...38-1618851869.9
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Oh. Thats good to know. I think the owner wont mind a few hundred bucks, shes prepared to spend about 1.5k for tnb shifting. If thats the case, do i engage another tnbcontractor to come and inspect? May i ask what is my next step now? Im thinking to walk in to the nearest tnb contractor office and ask.
bobowyc
post Apr 20 2021, 10:55 AM

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QUOTE(ceo684 @ Apr 20 2021, 10:51 AM)
Yup can enquire with them. Presumably the bigger box will allow all the necessary connections to be made safely and "can pass TNB"
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Okay bro. Thanks a lot man. I'll go enquire a few tnb panel offices from their contractor list and see if they can assist.
bobowyc
post Apr 20 2021, 01:13 PM

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QUOTE(ceo684 @ Apr 20 2021, 12:49 PM)
Sis here actually. Yup that sounds like a good starting point as technically if they are able to OK the move and recertify those cutout fuse/meter stickers then one less thing to worry about.
For the aesthetics of big meter box..well it cannot be avoided..but it its kinda cool to have a big box laugh.gif
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Opps. I'm so sorry! I already contacted one, they will inform me when they can drop by to check and see. Hopefully it all goes well. Haha. I actually don't mind the big box, I would think the owner wouldn't mind as long as the meter can be shifted to the new column. Or else all our work would be for nothing. The box would be enclosed also. Cause our column is built to accommodate the meter inside, no matter, we allowed quite an amount of space for it. 🤣 Thanks a lot for your feedback sis. 😅
bobowyc
post Apr 22 2021, 09:17 AM

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QUOTE(ceo684 @ Apr 20 2021, 12:49 PM)
Sis here actually. Yup that sounds like a good starting point as technically if they are able to OK the move and recertify those cutout fuse/meter stickers then one less thing to worry about.
For the aesthetics of big meter box..well it cannot be avoided..but it its kinda cool to have a big box laugh.gif
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Update: I contacted one tnb contractor from their list, they quoted my client 4.8k for laying the new GI pipe, rewire, new board, new outgoing wire into the DB and necessary works. I think its a reasonable pricing. 😅 what do you think?
bobowyc
post Apr 22 2021, 11:42 PM

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QUOTE(ceo684 @ Apr 22 2021, 10:53 PM)
Sounds good all in all, being a TNB panel things will generally be smoother brows.gif
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Yeah. They said the cable is enough long for the new meter board. so no worries there. xD Hopefully all works out good next week! xD Thanks again for your assist!

 

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