Why armouring is done in the cables?
Insulation in cables ensures that conductors and other metal substances do not come into contact with each other. Armour: Steel wire armour provides mechanical protection, which means the cable can withstand higher stresses, be buried directly and used in external or underground projects.
Can I run Armoured cable under decking?
Question is do part p regs require cable under a deck to still be buried? Indeed, however, most sensibly, a steel wire armoured cable, buried direct, or in a suitable pipe, or attached to rigid bits of your wall or decking would be the normal, and easily made compliant with the regs.
What increases the flexibility of a wire?
Most industrial wire is made up of multiple wire strands, called ‘base strands’, rather than being made of a solid piece of metal. Multiple strands make the wire more flexible, allowing it to bend and flex more easily than solid metal. The finer the base strand, the more flexible the wire.
Does wire under a deck need to be in conduit?
Buried. Some municipalities allow you to bury special types of electrical cable below a deck without conduit. Between ground level and 18 inches below grade, you must protect cable with conduit.
What kind of armour is used on steel wire cable?
Single core (Aluminium Wire Armoured) Steel wire armour is only used on multicore versions of the cable. When a cable has only one core, aluminium wire armour (AWA) is used instead of steel wire. This is because the aluminium is non-magnetic.
What are the functions of an armoured cable?
by Cory Alton / Tuesday, 07 November 2017 / Published in Blog. Whilst the primary function of the metallic armouring of an armoured cable is to provide overall strength, it may be used as a circuit protective conductor (cpc), main protective bonding conductor or, where practicable, an earthing conductor.
When to use armouring as a protective conductor?
The cross-sectional-area shall be at least equal to that resulting from the application of Regulation 543.1 or be verified by test. Where the armouring is used as a protective conductor suitable cable glands must be used, as shown in Fig 2, for terminating cable ends.
What do you use an armouring machine for?
The Machine is used for Round Wire and Flat/Strip Armouring on Power Cables and Control Cables. The Armour Wire can be GI Wires or of Aluminium or Copper . The Machine can also be used for Screening purpose. Armouring Machines are manufactured in Single Cage or Dual Cage Configurations.