redbottle 0 Report post Posted November 7, 2007 the wiring for the light box is done, but now there are exposed electrical trunking!!!i asked the ID and electrician why got exposed trunking? they both said, no choice, cos safer to tap direct from main circuit box... if using the existing lighting point, the large number of downlights (i have 12) may cause power tripping...also, original HDB concealed wiring is 1 wire to 1 switch, so if i split the 12 downlights into 4 groups of 3, i need 4 wires, so cannot use the conceal wiring anymore and must do exposed trunking for these wires...somehow i feel quite skeptical...is there a way to use the existing concealed wiring, and not have the exposed electrical trunking???pls help!!! !! !! Share this post Link to post Share on other sites
xXTReMEXx 0 Report post Posted November 7, 2007 that's rite... there's only one alternative for such addition of lights with several switch control..the only tedious/ costly way is to get someone to conceal the new wires into the wall.. which is a very dusty process.. n if u dun mind.. i do have someone who can to do it 4 u...the price depends on the distance of the wire that need to be conceal...the wiring for the light box is done, but now there are exposed electrical trunking!!!i asked the ID and electrician why got exposed trunking? they both said, no choice, cos safer to tap direct from main circuit box... if using the existing lighting point, the large number of downlights (i have 12) may cause power tripping...also, original HDB concealed wiring is 1 wire to 1 switch, so if i split the 12 downlights into 4 groups of 3, i need 4 wires, so cannot use the conceal wiring anymore and must do exposed trunking for these wires...somehow i feel quite skeptical...is there a way to use the existing concealed wiring, and not have the exposed electrical trunking???pls help!!! !! !! Share this post Link to post Share on other sites
cookie 0 Report post Posted November 8, 2007 yup this is normal.Unless you asked for concealed wiring which will cost u a lot extra. Share this post Link to post Share on other sites
zirhk3355 1 Report post Posted November 8, 2007 Unless conceal using plasterboard, otherwise would be illegal to hack the walls to conceal... Share this post Link to post Share on other sites
redbottle 0 Report post Posted November 9, 2007 i think i may have found the answer...all the lighting points in the flat share a single 6A fuse, and this is the max current allowed... adding up all the lights and ceiling fan, the total wattage is 706W... for energy saving lamp, need to multiply by a factor of 1.8 to get the actual current drawn, which is hence 5.295A... this is much too close to 6A cos a safety margin of about 1.5A is needed becos the copper wires' resistance will increase with age...well, i guess will have to leave it as it is... Share this post Link to post Share on other sites
