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Renovations 3-phase wiring
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madcow1
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 Jan 17 2013, 10:36 AM
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Getting Started
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Anyone can help with electrical wiring ?
My condo living room ceiling light go off and I decided to change the whole thing. After I dismantle the old one, the whole batch of the light (including fan and other room lights) cannot be turn on now.
The wiring from the ceiling light got only 2 cable connecting to a plastic connector but the ceiling got 4 wiring, 2 others in green and black which I never touch when dismantle the old ceiling light. Can I just leave it there or could these 2 wires came out from somewer ?
Any idea what went wrong ? Thank in advance all sifus here.
Sorry, no pictures b'cos it is kinda dark and I go to work before the sun rise and reach home after sunset.
This post has been edited by madcow1: Jan 17 2013, 10:37 AM
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madcow1
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Jan 17 2013, 05:02 PM
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Getting Started
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QUOTE(ozak @ Jan 17 2013, 04:54 PM) You have to take picture for easy understand. Give you wrong infor will shortcircuit your whole house electric. Best is ask electrician have a look. Ask Electrian to do 2 ceiling light will cost how much roughly? Will try to take picture later tonite. |
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madcow1
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Jan 17 2013, 11:32 PM
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Getting Started
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This is the wiring problem I have now > http://postimage.org/image/4nbkuaojf/ Any sifu can help ? The blue & black attached to the plastic connector and connected to both white wires for the old lights. So why now cannot turn on the power again ? Anything need to be done with the idle green wire and black copper wire? Any if my new ceiling lights have this wiring, http://postimage.org/image/hjx3aakyf/72614645/ can I just simply plug to any of the blue & black wires attached to the plastic connector ? Thank in advance for the help. This post has been edited by madcow1: Jan 17 2013, 11:33 PM |
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madcow1
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Jan 18 2013, 09:07 AM
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Getting Started
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QUOTE(skng03 @ Jan 18 2013, 12:40 AM) Use connector to joint the black wire (neutral ) and green wire(earth), the other lights / fans not working because all these points r in same circuit, these 2 wire loop and link to each other Hi Sifu, thanks but I am noob in this, do you mean connecting the black copper wire with the green one ? There is 2 black wires there, one is fine wire and another one is copper type. |
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madcow1
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Jan 18 2013, 09:14 AM
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Getting Started
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QUOTE(weikee @ Jan 18 2013, 09:08 AM) These is like asking a normal person do surgery. Very scary. Please don't short the green with black. Your ELCB will trip. Green with green Black with black. Serious ? Cannot learn how to DIY now and must get help from electrician ? |
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madcow1
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Jan 18 2013, 09:50 AM
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Getting Started
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QUOTE(weikee @ Jan 18 2013, 09:29 AM) Light and fan usually are looping, taking out the wires mean you have break the loop. Reconnect the loop. Black to black green to green Thank Master Wei Kee for the info. Actually I did not touch the other 2 wires not connected to the plastic connector, meaning there is no connector for the green & black copper. You can see here both the green wires is connected > http://postimage.org/image/3s791gqzv/. So where I need to connect the black copper wire ? |
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madcow1
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Jan 18 2013, 02:00 PM
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Getting Started
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QUOTE(magika @ Jan 18 2013, 01:50 PM) Pair the black wire together but first remember to off the main switch at DB or risk being electrocuted. Green wire just attached to any bare metal at equipment. The existing connection is correct except both black wire must be added together.. Thank for the guide. If I dun wan to install the light now, can I just pair the black copper wire with the black wires together and leave the green one as it is so the others light and fan can run again ? |
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madcow1
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Jan 18 2013, 02:09 PM
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Getting Started
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QUOTE(magika @ Jan 18 2013, 02:03 PM) Can, it seems you understand the concept. Yes, thank to all the master here. |
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madcow1
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Jan 18 2013, 04:11 PM
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Getting Started
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QUOTE(ozak @ Jan 18 2013, 02:25 PM) Do not leave any bare copper wire outside. Tape the expose copper wire. Or put inside the connector and screw it securely. Expose wire can cause shortcircuit, fire and dangerous to life. Thank for the guide, will buy some connector to fix it. |
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