NMD 90(Romex) and AC90(BX) are referred to as 14/2 (14 AWG ,2 conductor plus ground), 12/2 (12 AWG,2 conductor plus ground)etc. The bare ground wire(or bonding wire) is not counted. Not to confuse things but in most other cables like extension chords , you do count the ground wire. Don’t ask me why.An SJOW 14/3 cable would be a 14 AWG ,2 conductor cable plus ground that is sun, oil and water resistant. Long story short, in house wire you don’t count the ground,it’s just there without saying.I know everyone calls it a ground wire but in most cases “bonding conductor” is the correct term.
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Garage insulation
- Thread starter shanekingsley
- Start date
12-2 nmd has a ground wire 12-2 sjow does not.
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Trials
Well-known member
I believe he is referring to BX or shielded cable, 12 is the gauge and 2 is the number of insulated wires contained within. Current BX cable now has an additional non-insulated grounding wire of either copper or aluminum. Long ago the outer shielding was the ground wire on BX and it did indeed only contain 2 insulated wires.
Is a cheaper alternative to running Romex (plastic shielded) wire inside of conduit, which would be a requirement for household installations where water might be an issue or where the wiring is not enclosed within the walls of the structure.
... lol now everybody answered
That is correct.
Water and physical protection are 2 different issues with different solutions.
BX/armored cable provides physical protection. Not rated for wet.
There are rated cables for use in wet locations. These may or may not included physical protection. NMW, Teck cable, etc.
need to get a thermometer in mine.
GateKeeper
Well-known member
Too cold outside, not even going to attempt to go into the garage...I am sure it’s not very warm...lol
Thermometer and clock are on my door opener.
Be careful with conduit and romex. In a number of situations conduit is considered a wet location and romex cannot be used in a wet location. Basically conduit is not rated to protect the wire from water, if the outside of the conduit may be exposed to water, romex is a no-go. Consult code or an electrician for all the gory details.
Trials
Well-known member
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All absolutely true and all terrific advice!
& Holy to panic over mention of "wet" hydro connections, I thought we were talking about a garage outlet here! or must we expand this topic to include; the wisdom of Ground Fault circuit breakers, current leakage protection, hospital grade outlets in oxygen-rich environments and how to hard wire your submersible water pump?:I
The name says it all, NMD90(Romex) stands for non-metallic sheathed cable rated for dry locations up to 90 degrees Celsius.Anything underground would be considered a wet location,even in conduit.
Trials
Well-known member
frekeyguy
Well-known member
toasty enough to work in
Got a thermometer and turns out mine is a balmy -1 while it's -12 out. There is a 1cm gap under my garage side door, so once I plug that up, I should be able to turn ice into water.
Temp in my garage right now (6:05 pm) -- thermometer is on the back wall, opposite the door, fyi
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Temp in my garage right now (6:05 pm) -- thermometer is on the back wall, opposite the door, fyi
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Is this the new MacDoc type weather thing?
I don't think so.....I don't see an Apple logo on it...lol
I'm a simpleton, all that weather radar tracking stuff is above me.
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