Early ac cable often does not have this bonding wire.
Can you use metal clad cable outdoors.
What are the uses permitted by the nec for metal clad cable type mc.
The bonding wire is unique to ac cable and this allows the outer metal armor in conjunction with the bonding wire to be used as an equipment ground.
Advantages of metal clad cable why electricians love this stuff no need for electrical conduit with indoor applications since it has its own metal armor.
The national electrical code prohibits use of bx technically named armored cable ac in wet locations.
Type mc cable without an outside nonmetallic jacket can be installed in an other space used for environmental air in accordance with section 300 22 c.
They can be direct buried where identified for such use.
A general uses 1 in branch circuits feeders and services 2 in power lighting control and signal circuits 3 indoors or outdoors 4 exposed or concealed.
Surface mounted or trenched for use in site lighting signage parking decks or lots marinas rooftops and stadium applications.
Mc cable can be used inside and outside in wet locations when specified and in concealed or non concealed areas.
These cables can be installed either indoors or outdoors and in exposed and concealed locations.
They are outlined in sec.
Use metal clad mc with a metal sheath specifically listed as impervious to water or underground feeder branch circuit cable uf either by itself or in a conduit system approved for use in wet locations if you desire additional protection from physical damage to the cable.
Now ac cable cannot be used in exterior or damp locations.