mstrlucky74
Senior Member
- Location
- NJ
You can use MC. It's for up to 600 volts but I would do conduit and then run CL3/CL2 riser rated 16-2 or 14-2 stranded cabling.
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Why would you do conduit? Thanks.
Yes but the wire has to be protected within the wall by conduit or an armored cable like MC. Can't just run tstat wire or any other wire down the wall. So my question is why a conduit stub instead of MC cable? I think MC would be quicker.Everything south of the "power pack" is LV CL2 wiring. Nothing says that you couldn't use MC to the switch but why would you? Thermostat wire would be fine, either dropped down the partition or in a stub up conduit from the switch box into the ceiling.
-Hal
Yes but the wire has to be protected within the wall by conduit or an armored cable like MC. Can't just run tstat wire or any other wire down the wall. So my question is why a conduit stub instead of MC cable? I think MC would be quicker.
Yes but the wire has to be protected within the wall by conduit or an armored cable like MC.
Why would you do conduit? Thanks.
With low voltage power circuits stranded wire is always recommended as it has more throughout than solid wire of the same size. Especially in lower voltages.
What??
-Hal
Electricity doesn't flow through copper, it flows on the surface of copper. Therefor stranded 16 AWG wire has more surface wire on all the individual strands than a solid wire of the same size. This is called the skin effect in electrical theory books.
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A gross oversimplification, as indicated in previous comment. The only place the current would flow only in the surface layer would be in the case of a superconductor. Flows *near* the surface makes for a much better statement.Electricity doesn't flow through copper, it flows on the surface of copper. Therefor stranded 16 AWG wire has more surface wire on all the individual strands than a solid wire of the same size. This is called the skin effect in electrical theory books.
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It's also very much frequency dependent. At 60hz skin effect is for all practical purposes non-existent. You would have to get up into RF to see it.
-Hal
An over generalization. At 60Hz the skin depth is large (8.5mm) but as you increase conductor diameter it does become noticeable.It's also very much frequency dependent. At 60hz skin effect is for all practical purposes non-existent. You would have to get up into RF to see it.
-Hal
Ok. Here we go again. We can go probably 4 more pages with theory to try and prove a point but what purpose does it serve? The statement was that because of skin effect, 18ga stranded copper will have more conductivity than 18ga solid at 60Hz and you should use stranded for a simple LV switch setup. That's a ridiculous statement and we all know it.
-Hal
Most commercial building require emt stub ups for low voltage. If it's not required on your project then just run 16-2 stranded CL2/CL3 Riser rated UL listed wire.
With low voltage power circuits stranded wire is always recommended as it has more throughout than solid wire of the same size. Especially in lower voltages.
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