Discuss Wiring 1-10v dimmers in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

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rwright1000

Hi all,

I'm currently wiring 1-10v analouge dimmer switches to control 3 banks of fluorescents. Seems straight forward enough although i wanted to know what is the best cable to wire the dimming control cores in. I want to run it in large trunking and conduit with the mains cables which im told is ok but needs to be shielded. Are we talking 2-core shielded cable about 0.5mm? If so where can i buy this or is there an alternative. Any advice would be great

Thanks Guys!
 

malcolmsanford

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Kent working back out there yet again
Run it in a bit of Twin and earth or a bit of 2 core flex.

All you need for Band II circuits that are run in the same containment as Band I circuits are for the Band II be insulated for the highest voltage present. The double sheath will also afford you good separation

Reg 528.1 (i)
 
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rwright1000

Ok, yeh Im happy with making sure the insulation meets correct voltage demands but suprised I don't need to shield it. If it won't create any interference then great, it will be easier for me and probably cheaper just running some 2 core flex. Hopefully that is the case.
 
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Edd

If your voltages are really only 1-10 V then induced voltages from the parrellel systems will be a problem. I would use FP 200 as its screened and rated at the 230 V so can be run in parrellel. Thats unless you wana push the boat out and use MICC :)
 
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rwright1000

Thanks for the responses.

Without compromising the quality I would like to avoid spending more on the FP. Thought about using the 2 core flex but run a different route on some existing tray which is big enough to leave a suitable gap. The only point where the cables are near will be in the back of the dimmer box and entry to the light fitting. I'm think that will avoid any problems with the inteference.
 
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