Hey all, I've got a dumb question that has probably been answered before, but here goes. I do strictly residential work so typically use NM and occasionally MC cable, but I have never used AC cable. Exactly why do they make AC and MC? I know the physical characteristics of the two, i.e bonding strip, paper wrapping, the requirement of redheads and so fourth, but what's the deal? Why is AC typically the only flexible metal cable allowed in hospitals and the like? Is there a worry that a conductor could come in contact with the armor of the cable and that since MC does not have a bonding strip it is possible that even with the correct fittings essentially bonding the armor to the EGC that it may not trip the OCPD due to lack of continuity throughout the interlocking armor itself? Sorry to ramble or sound ignorant, but I couldn't think of a better way to ask. Also, I like how the two cables almost look identical for the most part, but AC requires more stringent fastening requirements.
Thanks for the help......
[ September 29, 2005, 01:40 AM: Message edited by: torcho ]
Thanks for the help......
[ September 29, 2005, 01:40 AM: Message edited by: torcho ]