How to prevent overvoltages


Every homeowner should know the basics about power surges and how to prevent them. Over time, even small voltage surges can cause damage to appliances and devices. Here is a brief summary of everything you need to know about voltage surges and what you can do to avoid them.

What is an overcurrent?

An overcurrent is an extremely rapid and intense power surge in the household electrical current. Surges are also referred to as ‘transient voltage’ because they are caused by the sudden presence of a surge passing through the electrical system.

What causes electrical surges?

Most people associate electrical surges with lightning. When lightning strikes a power line, its discharge of energy can increase the electrical pressure of the line by millions of volts. This voltage increase crosses the power line and reaches your house, and BOOM!

Fortunately, lightning is one of the rarest causes of electrical surges. Most surges are a bit more mundane.

High-power appliances, such as air conditioners and refrigerators, require a lot of power to turn on. When these appliances require this power, they can inadvertently create a surge in the electrical system.

How can I prevent electrical surges?

The easiest and best way for a homeowner to protect himself against electrical surges is to use a surge protector. Surge protectors are a type of power strip. 

The difference between a surge protector and a power strip is that surge protectors absorb excess energy passing through them. During a surge, the protector redirects the excess voltage to the earth wire to neutralise it. Surge arresters for service panels work in the same way, but they plug directly into the circuit breaker to prevent surges from entering the house's electrical system.

Call the Emergency Electrician in Bristol. We are your right contact partner.
Location: Bristol, UK

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