different types of wires


Wire is a long, flexible, cylindrical shaped rod metal.

 Everyone knows that a wire is used to carry mechanical loads (Electricity) and telecommunications signals.

Wires are used in almost every electrical appliance that we see around us like “Television”, “Iron”, “Smartphone Charger”, “Tube lights”, “Switches” and many more.

So how is it made?

 It is not made up of just a single strand of rod but is a collection of such strands in a cross-section arrangement to serve a particular purpose.

These strands are made up of different metals like Copper, Silver, Aluminium etc. and are covered with an insulating material mainly rubber.

 Wires can be made in square, hexagonal or flat rectangular shapes for decorative or technical purposes.

A wide variety of wires are used in our daily life so one should be able to differentiate between them.

Some commonly used Wires are:

1. Solid Wire:

Here Solid means solid-core or single strand of wire.

 So this wire is made up of a single piece of metal.

It is mainly used for wiring breadboards.

 It is cheaper than any other wire so it is used where there is little need for elasticity in wire.

 Solid wire also provide mechanical strength.

2. Stranded Wire:

Stranded Wire is a collection of small wires, bundled or wrapped together to form a larger single conductor.

 It is more flexible than Solid Wire with same cross-sectional area.

It is a better conductor than Solid Wire as individual wires collectively provide a greater surface area.


It is mainly used in musical instrument cables, computer mouse cables, mining machine cables, welding electrode cables etc.

3. Braided Wire:

A Braided Wire is similar to Stranded Wire in a way that it is also composed of small strands of wire braided together.

But braided wire is a better conductor and is stronger than Stranded Wire.

 It does not break easily when stretched.

 These are used in noise-reduction cables and provide electromagnetic shielding.

4. Triplex Wire:

Triplex wire or Triplex service drop cable is made up of two insulated phase conductors twisted around a bare aluminium alloy or neutral conductor.

 The conductor is mainly an aluminium alloy wire and black thermoset cross-linking polyethylene is used as insulation.

 The neutral conductor is a small gauge grounded at both the electric meter and the transformer.

 It is most suited for a secondary distribution between poles of a transformer.

5. Non- Metallic Sheathed Wire:

Non-Metallic Sheathed Wire also known as Romex, is used as house wire which has 2 or 3 conductors each with plastic insulation, and a grounded wire.

 The outer sheath is non-metallicflame-retardant and moisture-resistance type of material.

 It is relatively cheaper than other wires and is preferred for in-house wiring.

Also, it is available in different ratings for 15, 20 and 20 amps.

One can know more about wires from their colours as different coloured wires serve different purposes like:

       Red: Hot wire, for switch legs, for connecting wire between 2 smoke detectors.

       Yellow and Blue: Hot wires, pulled in conduit. Yellow for switch legs to control fans, lights and blue for 3-4 way switch application.

       Green and Bare Copper: For grounding purpose only.

       White: Neutral

       Black: Hot wire, for switches or outlets.


Wires can be made in square, hexagonal or flat rectangular shapes for decorative or technical purposes.

Easy Nirman Construction was Never Easy Before Us


    No Comments yet ...

Leave a Comment