BX cable

[Birken Vogt]

edit:

So it looks like MC-AP has the same basic idea as AC except the bond is full size Al instead of reduced Cu.

Does that help by meeting a spec when it calls for MC cable or something?

 

[LarryFine]

Mainly that the sheath qualifies as a redundant EGC.

 

[gene6]

Read 250.118 and it is AC.

We still use AC cable all the time, however BX to me means old armored cable without the bond strip, that stuff can glow red when its attempting to work as a ground.

 

[LarryFine]

We still use AC cable all the time, however BX to me means old armored cable without the bond strip, that stuff can glow red when its attempting to work as a ground.

The BX with the strip was still real BX, too.

 

[electrofelon]

edit:

So it looks like MC-AP has the same basic idea as AC except the bond is full size Al instead of reduced Cu.

Does that help by meeting a spec when it calls for MC cable or something?

Yeah I am not clear why they came out with MC-ap, could just use AL sheathed AC. Was it because you have to use redheads on the AC and that's a deal breaker for everyone?

 

[roger]

MCAP came about to get it into Healthcare applications. Until it appeared HCFC was AC. I still don't understand why someone would use MC-AP over HCFC, the AC version has a smaller Al conductor for shunting the sheath.

 

[infinity]

edit:

So it looks like MC-AP has the same basic idea as AC except the bond is full size Al instead of reduced Cu.

Does that help by meeting a spec when it calls for MC cable or something?

The bonding strip in AC is aluminum.

Does anyone know if MC is cheaper than AC and therefore more popular?

 

[hbiss]

Does anyone know if MC is cheaper than AC and therefore more popular?

I know MC was cheaper than Romex awhile back.

I suppose if they sell mostly MC in a given area then AC will be more expensive.

-Hal

 

[electrofelon]

The bonding strip in AC is aluminum.

Does anyone know if MC is cheaper than AC and therefore more popular?

I would be curious about a price comparison. Seems like AC should be quite a bit cheaper due to third less copper.

AC is so uncommon to areas I work, most people haven't even heard of it. I've asked at some supply houses if they have it and they're like "you mean BX? no you can't get that anymore"