What is an RCD and how does it work?

Very often I get asked questions like this by my customers,

What is an RCD?

Do I need one?

How much does it cost?

Will it save my life?

The short answers to all these questions is, An RCD is a life saving device, yes you do need one, the cost varies and YES it will save your life. Now I don’t mean to sound too blunt so let me explain in a bit more depth.

What is an RCD?

An RCD is a safety device which is usually connected to your home consumer unit, your RCD will either monitor just one circuit or several circuits depending how it is wired up.

Basically, an RCD constantly monitors the electric current flowing through one or more circuits it is used to protect. If it detects electricity flowing down an unintended path, such as through a person who has touched a live part, or an earthed metal object such as the pipe work in your house, then the RCD will switch the circuit off very quickly, significantly reducing the risk of death or serious injury.

Do I need an RCD?

In my professional opinion, I’d say yes! An RCD is one if not the most important safety feature of your home. It dramatically reduces the risk of you or a family member receiving an electric shock and reduces the risk of an electrical fire.

These little RCD’s that sit inside your consumer unit at home are life-saving devices, they stop you from becoming another statistic

How Much Does It Cost?

Its difficult to put a price on safety and the price of fitting an RCD can vary. The best and safest way is to have an RCD at the heart of your home, Your fuse board or consumer unit. However, its not as simple as just popping one in. It usually involves a fuse board upgrade. The best way to get a price would be to ring up your local electrician and ask for a quote as there are a number of factors that could determine the cost.

Will it save my life?

In short, YES. Hopefully it will never have to though. Remember that just because your electrics work, it doesn’t mean they are safe. Electricity is a hidden killer. Regular testing of your property would ensure that any faults or dangerous situations are picked up on. In a privately owned property the recommended testing cycle is every 10 years or at the change of tenancy.

Bonus Tips:

1. 📷To check if you have an RCD fitted check your fuse board, it will look similar to one of these

2. Test your RCD regularly to keep it maintained to its optimal performance by pressing the little test button. This should be done every 3 months. You should also have a sticker on the front of your fuse board telling you how to do this. If your RCD doesn’t trip, then please consult an electrician immediately

If your unsure about anything or have any questions, then please get in touch with me by clicking here or by dropping me an email to alistair@clydesideelectrics.com