Armoured cable or swa steel wired armoured cable is the accepted standard for underground installations. Bx cable is installed in dry indoor ircuit drawings and wiring diagrams electrician circuit drawings and wiring diagrams skills exploration 1012 3 pictorial diagram.
Cross Section Of A Single Core Metal Sheathed Wire Armoured
Armoured cable wiring diagram. Steel wire armoured cable construction uses installing the correct gland fitting into a metal enclosure fitting into a plastic enclosure earth connection. Armoured cable comes in several different variables but for. The swa cable can also be referred to mains cable power cable armoured cable and booklet armoured cable. Bx is accepted by the national electrical code nec. This wire can be buried in the ground or can be fastened to exterior walls using cleats. The construction of a steel wire armoured cable depends on the intended use.
Better yet use a special armored cable cutting tool. Armored cable better known as bx is a flexible metallic jacketed indoor service cable. How to use armoured cable for wiring. The galvanised steel wire protects the wire from accidental damage caused by digging etc. A diagram that represents the elements. With copper wiring creating the perfect conductors for the core with a range of types such as 2 core 3 core and 5 core swa cables to name a few.
Nm cable is also accepted by the nec. Bx is cut with a hacksaw. Older bx cables without an internal bonding strip are not accepted by nec. Nm cable can be cut with a linemans pliers or even with the cutter on a wire stripper. For example when the power cable needs to be installed in a highly populated and or enclosed public area a low smoke zero halogen lszh equivalent called swa bs 6724 cable must be used swa cable bs 6724 has lszh bedding and a black lszh sheathall london underground cables are required to use lszh sheathing.
Gallery of Armoured Cable Wiring Diagram
