Renovations 3-phase wiring
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 Mar 18 2021, 06:55 PM
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#1
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1,856 posts Joined: Dec 2008 From: In The HELL FIRE   
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Hi guys, in Malaysia or Strata any rules saying that we cannot run concealed wiring without pvc conduit?
What wires should I use for concealed wiring 1.5mm for light and fan? Other than double pvc what is other options? is it necessary to use double pvc ? This post has been edited by Pain4UrsinZ: Mar 18 2021, 08:19 PM |
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Mar 18 2021, 07:12 PM
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#2
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QUOTE(ceo684 @ Mar 18 2021, 07:04 PM) Generally you can see CHAPTER 5 CABLE SELECTION in "ST GUIDELINES FOR ELECTRICAL WIRING IN RESIDENTIAL BUILDINGS 2008". PDF available online. from Both also because DB slot limitedYou are pulling new wire from DB box or connecting to existing point?  This post has been edited by Pain4UrsinZ: Mar 18 2021, 07:13 PM |
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Mar 18 2021, 08:26 PM
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#3
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QUOTE(ceo684 @ Mar 18 2021, 08:20 PM) Theoretically should not be a problem if you're not fitting excessively big fan or factory spotlight. actually I'm engaging a contractor , i stay in condo. they don't want to take risk to drill deeper and put a conduit as worrying it might affect the slab between my ceiling with the floor for neighbor aboveIt is a concept of DI (double insulation) for concealed wiring, conduit and 1.5mm LNE for the run to DB box. Whilst for light circuit you can get by with substandard 2.5mm cable (I do not recommend) but then again properly made and certified MS2113-2 1.5mm is not expensive (old price RM62RM62, new price RM70RM70) for peace of mind when you sleep  Conduit runs about 8ft full pipe also just a few bucks from electrical store each. Those on shopee usually halfcuts at 4ft for easier transport but then you need twice as many fittings to join up. At the DB can just run 6A MCB, whilst 10A still well within the spec of the 1.5mm cable, 6A cuts earlier in case of an overloading fault which in normal use I doubt you'd even come close to 6A for a light circuit.. that's 1380W  Yes it is only 1.5mm for lighting and fan. So is DI better or not necessary? what if my contractor just want to use single layer PVC ? This post has been edited by Pain4UrsinZ: Mar 18 2021, 08:35 PM |
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Mar 20 2021, 04:43 PM
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#4
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QUOTE(ceo684 @ Mar 18 2021, 08:37 PM) Whilst it is not recommended to just bury cables direct into the ceiling slab, you can use the smallest 8mm OD (5mm ID) conduit to remain complaint with ST rules. This should be easy enough to conceal since OD only 8mm. thank you, saw the work done today, the contractor managed to use back the developer wire Conduit PVC as my requested new light and fan point just along the existing conduit.https://shopee.com.my/Automotive-Wire-Condu...2975.3959127968 now i have a new question. can i pull a new 2.5mm wire from the DB shared for 3 Power point outlet sockets (all three for CCTV on 24 hours) and 2 switches for 17W ceiling exhaust fans (on 24 hours)? This post has been edited by Pain4UrsinZ: Mar 20 2021, 04:43 PM |
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