Northern Cables Inc. manufactures NMD90 with cross-linked polyethylene insulation and an FT1 PVC jacket. NMD90 can be used in dry locations where it cannot be subject to mechanical damage. This product is available from #8 to #2 in two, three, or four copper conductors.
Northern Cables Inc. manufactures CSA approved aluminum NMD90. Cables are manufactured with three 8000 series aluminum ACM conductors insulated with RW90 cross-linked polyethylene rated at 300 volts from #8 to #2 AWG. The bonding conductor is bare aluminum. These cables are made identically to the copper based ones.