Planning the electrical installation 43 Additional US requirementsType MC continuous corrugated aluminum armor cable with symmetrical grounds orshielded power cable is recommended for the motor cables if metallic conduit is notused.The power cables must be rated for 75 °C (167 °F).ConduitWhere conduits must be coupled together, bridge the joint with a ground conductorbonded to the conduit on each side of the joint. Bond the conduits also to the driveenclosure. Use separate conduits for input power, motor, brake resistors and controlwiring. Do not run motor wiring from more than one drive in the same conduit.Armored cable / shielded power cableSix-conductor (three phases and three ground) type MC continuous corrugatedaluminum armor cable with symmetrical grounds is available from the followingsuppliers (trade names in parentheses):• Anixter Wire & Cable (Philsheath)• BICC General Corp (Philsheath)• Rockbestos Co. (Gardex)• Oaknite (CLX).Shielded power cable is available from the following suppliers:• Belden• LAPPKABEL (ÖLFLEX)• Pirelli.
