power supply, convert single phase to 3 phase
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 May 16 2007, 04:46 PM, updated 19y ago
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#1
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6,181 posts Joined: Oct 2004   
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How much did you guys spend to fix that?
I got a quotation of almost 3k just to fix that. Need to wait 3 weeks for TNB approval. Wondering if it's overpriced. Factories been installing them for the cost of approx 10k, but I don't think houses would need those big DB. Heard from rumours that somebody installed theirs for only 600 bucks! Now that got me worried... Anyone has experience in this? |
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May 16 2007, 05:15 PM
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#2
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QUOTE(laksamana @ May 16 2007, 05:08 PM) RM3k is about right for a normal terrace. I think the fusebox needs to be upgraded, some new wiring done, more deposit for TNB etc. That's about right.FYI, I spent some RM9k for my house for 3 phase power after renovations/extensions. That sum includes new power points, lighting points etc.  What a relief. I thought I've been conned. Anyway, I got quotation of 100 bucks each for each 13A point, wondering if it's right? Figuring I paid 100 bucks for a 13A point in an exhibition hall for 3 days, that's not so expensive right? |
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May 16 2007, 05:34 PM
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#3
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6,181 posts Joined: Oct 2004
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Thanks for the info..
60A 3 phase.. wondering if it's sufficient. Just 6 air-conds.. Heard that it's better to double up all power points now, instead of putting extension later, as extension would put the load up a single point, the single point might blow up? Hmm... I've connected like.. 4 PCs to a single point before, and so far it's running fine. Are those rumours? Or proven facts.. Or else I need to fork out a few K's just to fix those power points. |
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May 16 2007, 10:42 PM
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#4
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6,181 posts Joined: Oct 2004
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Hmm, I am worried about the 60A whether it can stand 6 air-cond simultaneously or not.
But most probably it won't be on simultaneously unless I'm holding a grand party though. How much is the deposit that we have to pay to TNB? Anyone knows? Is it a few K's? |
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May 17 2007, 01:26 PM
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#5
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6,181 posts Joined: Oct 2004
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DB box cost 1k already.
The rest is like deposit to TNB, wiring, and workmanship. |
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May 19 2007, 04:26 PM
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#6
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6,181 posts Joined: Oct 2004
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Got another new guy to quote the price.
He opened up the DB box, there, already 3 phase, there's no need to change anything. Gee, I'm so confused now. Can anyone post their 3 phase DB box picture? |
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May 19 2007, 05:47 PM
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#7
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QUOTE(empire23 @ May 19 2007, 04:46 PM) 3 phase boxes should have 4 wires, Yellow, Red, Blue and Black. 3 of them are for each phase and 1 is for ground. Well, all I can see is, there are 3 fuse or something like that..And it has three rows of those jumper-like switch.. I see no wires.. maybe it's concealed beneath the wall or something. QUOTE(sellihcA2005 @ May 19 2007, 04:47 PM) oh nice I don't know. I want to be SURE. I want no hassle if all the air-conds are switched on at the same time. save you 1k already, lucky you got another to check. |
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May 20 2007, 12:24 AM
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#8
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QUOTE(empire23 @ May 19 2007, 11:17 PM) Should be correct since only the 3 phases carry fuses and not the ground. Ooops, I made a mistake.It has 3 of this thing:- [attachmentid=234391] Each on a row.. So is it 3 phase? |
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May 20 2007, 11:37 PM
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#9
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Confusing. I'll take pic when I'm free. Oh well.
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