Salient Features And Uses Of 2 Core Aluminum Conductor Unarmored Pvc Cables

2Core Aluminum Conductor unarmored PVC cables have become indispensable part of our

lives by their virtue of managing our daily electricity needs in safe and easy manner. The PVC sheath or cover around the twin aluminum conductors insulates the surrounding area from the electric current, flowing through the core. Unarmored PVC sheathed cables usually lack the extra aluminum sheath built around the PVC insulated aluminum core for extra strength needed to withstand rigors of field usage. 2 core Aluminum conductor unarmored PVC cables are widely used for machine tool and equipment wiring, where greater flexibility is required and the cable is not subjected to external abrasion or distortion due to rough usage or conditions.

Quality of PVC Sheath

The PVC used to insulate the metallic core conductors should have following properties so that cable has long life and is safe for the end users:

Resistant to chemical and electrolytic decay that happens over the time

High resistance to wear and tear or abrasion, which can expose the core

Excellent fire retardant qualities to ensure that cable does not burn out in event of fire or short circuit

It should have non-hygroscopic insulation and remain unaffected by moisture

Excellent anti-ageing characteristics to ensure long working life

The core of this type of cable is made up of two aluminum wires that are extruded in PVC, followed by an extra coating of PVC sheet for added insulation and protection of the core. As per IS standards the red and black color identify the twin wires from each other to ease the wiring process.

Fire Safety

It is good practice to buy fire resistant or low smoke cables because in event of short-circuit or any other fire tragedy the cable can resist high temperatures and prevent meltdown. Besides this the amount of the smoke given off will be quite less compared to other cables that do not confirm to this standard. Depending upon the voltage and amperes that need to be transferred the from one point to the other the core area is decided, which can vary from 1.5 to 630 sq.mm with conductor shape varying from solid or stranded to circular, compacted or sector-shaped.

Depending upon the core area and requirement of the clients, PVC cable manufacturers pack the cables in varying length. For smaller size, cables in 100 meters length are wound in rolls, while cables with length of 500 meters are wound on large wooden spools for convenient handling and transportation.

by: Maulik

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