Why do earthing and bonding need to be checked?

If you are having an alteration of addition made to your electrical installation, your electrician must check (as well as other things) that the earthing and bonding arrangements you have are up to the required standard.

This is because the safety of any new work you have done (however small) will depend on the earthing and bonding arrangements.

What is earthing?

If there is a fault in your electrical installation you could get an electric shock if you touch a live metal part. This is because the electricity may use your body as a path from the live part to the earth part.

Earthing is used to protect you from an electric shock. It does this by providing a path (a protective conductor) for a fault current to flow to earth. It also causes the protective device (either a circuit-breaker or fuse) to switch off the electric current to the circuit that has the fault.

For example, if a cooker has a fault, the fault current flows to earth through the protective (earthing) conductors. A protective device (fuse or circuit-breaker) in the consumer unit switches off the electrical supply to the cooker. The cooker is now safe from causing an electric shock to anyone who touches it.

What is bonding?

Bonding is used to reduce the risk of electric shocks to anyone who may touch two separate metal parts when there is a fault somewhere in the supply of electrical installation. By connecting bonding conductors between particular parts, it reduces the voltage there might have been.

The types of bonding generally used are main bonding and supplementary bonding.

More advice

Please give us a call and we will give you advice if your earthing or bonding needs to be improved for safety reasons.

07971 958 640

Testimonials

  • With my boiler timer having failed and the company who service it unable to fix it, I called Jon who responded within 20 minutes after numerous other companies couldn’t get to me for days. Jon was professional and informed me of all options as he assessed the problem. Within 2 hours a solution was found and he even took the time to inform the Boiler tech of their missed diagnosis. Highly recommended! → Marcus, Bristol BS1
  • Jon has rare qualities; he will do what he says he will do and when he says he will do it. He is willing to undertake a challenge with humour, efficiency and thoroughness. The resulting installation is neat, up to the required standards and above all, just what I wanted, for the agreed price. So I am very happy and would recommend him for any electrical work large or small. Oh yes, he likes his tea white with one sugar! → Melissa, Bristol BS9
  • At an arranged time to suit me (within 24hrs), Jon arrived and fixed the patient’s toilet light in under 2 hours. I cannot fault the overall service Jon was very friendly, he got out to us and sorted the problem quickly and explained to me exactly what needed to be done. The price as well was very reasonable. I would definitely recommend and if I ever have any other electrical problems I will definitely be calling them. Thank you again Jon! → Clare Street Dental Centre, Bristol
  • I own a pub and have used Jon several times for various issues with my electrics. He has always been very prompt and reliable as well as being very professional – being able to quickly identify any problems and fix them to a high standard. I would highly recommend him! → Liz, Bristol BS39
  • I would highly recommend Jon White for any electrical requirements that you may have. Jon was competitive in price, never over promised and under delivered! All work was completed in a prompt and capable fashion and everything was left tidy afterwards. Nearly a year after Jon completed our work, we have not had any issues whatsoever and Jon is at the top of our list for all our electrical needs. → Christine
  • Jon carried out a complete re-wire on our new property, on a tight time frame, with very little notice. He kept to his estimate and informed of progress the whole way along. We are very happy with the finished product and are having him back to re-wire our garage next. → Anneka and Jason, Bristol BS15
  • We suddenly had a problem with our kitchen circuits nuisance tripping, which meant we could no longer get any electricity in the whole of our kitchen. Jon was excellent, he came out the same day and was able to isolate the problem, so that we could run our fridge and freezer off an extension lead. He came over a fixed the issue within a couple of days. He was prompt, informed and trustworthy. I would highly recommend him to friends and family in need of an electrician in the area! → Philippa, Bristol BS7
  • Jon White had been recommended to me by a friend and at very short notice, he managed to rearrange his schedule to fit in an urgent job for me. He quickly understood my objective, and without any fuss, got on with it, leaving no dust or mess. I would strongly recommend him – professional, efficient and a really nice guy! → Jacky, Bristol BS7
  • Jon was reliable; always turning up when he said he would and getting the job done. He took lots of time and care to get the positioning of the lights in our kitchen just right, and as a result we’ve received lots of compliments. I’d have no hesitation in using him again. → Jo, Redland, Bristol
  • Throughly recommended, great communication, understood my very 
particular requests and worked like magicians — I couldn’t even tell 
that they’d been in the house afterwards. → Tom, Bristol BS6
  • Jon is an extremely reliable and highly skilled electrician. He will give you a fair quote and is friendly and hard working. I would highly recommend his services. → Amanda, Bath
  • Just a short note to say thank you for the efficient way you carried out the works to my flat. Nothing was too much trouble, and it was also nice to know you turned up at the times stated, both to price the job and carry out the work. If I have any more electrical problems you will be the first person I contact. → Steve, Bristol BS9