What is Surge Protection in the electrical mains board and do I need it?

In today’s technology-driven world, our homes are filled with an increasing number of electronic devices that rely on a steady supply of electricity. However, the electrical system in our homes is vulnerable to sudden voltage spikes or surges that can potentially damage our valuable appliances and electronics. To safeguard our homes and ensure the longevity of our electrical devices, surge protection in the mains board is becoming increasingly important. In this blog, we will delve into surge protection and its significance.

Understanding Surges and their Impact
Electrical surges, also known as voltage spikes, are brief but significant increases in the voltage levels within an electrical system. These surges can occur due to various reasons, such as lightning strikes, power grid fluctuations, or even the operation of large electrical equipment in close proximity. While minor surges might go unnoticed, severe surges can wreak havoc on our sensitive electronic devices, leading to costly repairs or replacements.

Surge Protection Devices
Surge protection devices (SPDs) act as a defence for our electrical systems and appliances. Installed in the mains board, they work by diverting excess voltage from surges away from our devices, effectively minimizing the potential damage. These devices are designed to respond quickly to voltage spikes, diverting the excessive energy to the ground or suppressing it to a safe level, thus protecting connected equipment.

Types of Surge Protection:
In the UK, there are primarily two types of surge protection devices commonly used:

Type 1 SPD: Installed at the service entrance, these devices offer protection against direct lightning strikes and are capable of handling high-energy surges. They are typically used in areas with a high risk of lightning strikes or in buildings with critical equipment that needs maximum protection.

Type 2 SPD: Installed downstream of the main distribution board, these devices offer protection against indirect lightning strikes and smaller surges generated within the electrical system. They provide additional protection for sensitive equipment and are more commonly used in residential and commercial settings.

Installation and Regulations:
Surge protection devices should be installed by a qualified electrician who can assess the specific requirements of the electrical system. In the UK, the installation of surge protection devices is subject to regulations outlined in the 18th Edition of the Wiring Regulations (BS 7671:2018). It is crucial to ensure compliance with these regulations to guarantee the effectiveness and safety of the surge protection system.

Benefits of Surge Protection:
Investing in surge protection for your electrical mains board offers several advantages, including:
• Equipment Protection: Surge protection devices safeguard your valuable appliances, computers, televisions, and other electronic devices from potential damage caused by voltage surges. This can save you from expensive repairs or replacements in the event of a surge.
• Peace of Mind: Knowing that your electrical system is equipped with surge protection can provide peace of mind, especially during storms or instances of electrical instability.
• Enhanced Longevity: By minimizing the impact of surges, surge protection devices help prolong the lifespan of your electrical devices, preventing premature failures and reducing downtime.
• Insurance Compliance: Some insurance policies may require surge protection as a stipulation for coverage against damages caused by electrical surges. Installing surge protection ensures compliance with these requirements.

In an era where our reliance on electronic devices continues to grow, surge protection in the mains board is an essential measure for every UK home and business. It protects our appliances, electronics, and the overall electrical system from potential devastating voltage surges. By investing in surge protection, we not only protect our valuable assets but also ensure the safety and longevity of our electrical systems.

If you would like to speak to someone about installing surge protection in your home or business, please contact us on [email protected] or 01472 511486

TWB Electrical Ltd installation and maintenance work covers the following areas: Grimsby, Immingham, Stallingborough, Barton Up Humber, Killingholme, Lincoln, Scunthorpe, Waddington, Gainsbourough, Market Rasen Horncastle, Louth, Brigg, North Hykeham, Caistor, Woodhall Spa and surrounding villages.