Insulated Aluminum Wire

Insulated Aluminum Wire

When current passes through aluminium wires, they heat up and their surface [becomes covered] with an oxide film. This fim serves as an excellent insulator protecting the wires against external effects. Armored cable, referred to as Type AC cable or BX Electrical Cable is one of the original styles of flexible conduit used as an alternative to pipe and wire installations. ... A 16 AWG (American Wire Gauge) bare aluminum bond wire is used along with the armor as the ground path.

Aluminum foil can be an effective insulating material because it doesn't radiate heat out into the environment. That's what makes it effective directly under a roof: although it will warm up through conduction from the shingles, it won't radiate that heat out into the attic space. ... And that's how foil insulates. Conduction. ... Aluminium foil is a great conductor of heat, which means it is a poor insulator when it is in direct contact with something hot. It is also so thin that heat can pass through it super easily when it has direct contact. This is they type of heat transfer that aluminium is NOT good at stopping.