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The Importance of Electrical Insulation

1st July 2020

As technology advances, we're introduced to various materials, goods, and products that make our lives better and far more comfortable. Electrical use has also evolved and is the most relied upon of utilities. However, as electrical technology advances, so do the dangers that come with it (if mishandled or misused).

That is why insulation has become a necessary aspect of electrical handling and operations. Materials like rubber safety electrical insulating matting limit the flow of electricity between different conductors. Conductors are usually made of metal with high current carrying capacity; the insulators installed must have the opposite transfer properties of a conductor.

What is Electrical Insulation Material

Electrical insulation material is one that doesn't allow electrical current to pass through it. The electric charge of an insulator doesn't move freely, which means insulators are highly resistant to the flow of current. Materials like electrical insulating matting made from rubber prevent electrical current from flowing through them by acting as a barrier between the earth and conductor.

What Insulators are Made From

Insulators consist of various materials of different quality, but generally, their structure is similar to that of wool (it can trap tiny pockets of air). Floor mats are good examples since several types are made from materials through which electricity can't flow. Other materials or fabrics like cotton or hemp are also great insulators. Curtains made from such fabrics or electrical insulating matting are other examples of insulators.

Besides fabrics, rubber mats make excellent electrical insulators. Today, spray foam solutions made from polyurethane material act as great electrical insulators, as well as acting as adhesives to fill gaps on roof tiles, doors, and windows. Other materials like glass or plastic also work as insulators if used as protective covering for electrical conductors or circuitry.

Properties of Electrical Insulators

Electrical insulators have several properties. Here is a list

  • Insulators should have the high mechanical strength to accommodate the weight of conductors and have high resistance against electrical flow.
  • They must have high dielectric strength,or breakdown voltage, that allows change to occur if subjected to high voltage.
  • An electrical insulator is non-porous and free of impurities. In addition, air permeability is also a property of insulators like electrical insulating matting that allows air to flow through its pores (air is also an excellent insulator).

Final Word

Electrical insulation is vital when working with a live current. Whether you are on a gas platform, cargo ship, Industrial or commercial building switchboard all installations require a safety mat to conform to health and safety albeit BS, IEC61111 or ASTM D178. These are 3 of the most common specifications for the products used. So make sure your supplier offers you the correct specific tested product for your requirements along with certificates so that the material can be verfied. Installing safety electrical insulating matting made of rubber, beneath open circuitry that provides the right amount of protection for anyone working nearby and creating that all important safe working environment, is crucial in preventing the possibility of serious injury.

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