Whether for a small building, a church or a skyscraper, Test Strike offers the same care and attention to detail to ensure you have regulation compliant lightning protection and electrical earthing. From small routine checks to large construction projects we have built a strong reputation on our impressive levels of service and customer care.

Lightning protection testing and maintenance

The Electricity at Work Regulations 1989 require that lightning protection systems are tested regularly in accordance with BS6651 or BS EN 62305. We recommend your system is tested at intervals of 11 inspection and testing months, meaning across a 12-year period your system will have been tested throughout every season of the year.

Our team of expert engineers undertake detailed testing and inspection of completed installations. This includes verifying the installation is in accordance with the correct specification and compliant with all current legislation.

During these inspections, the mechanical condition of all conductors, bonds, joints and earth electrodes should be checked and the observations noted. These periodic inspections and tests will indicate what maintenance, if any, is needed.

Our engineers will undertake remedial and maintenance work at virtually any height, and are trained in the safe and efficient use of the following apparatus:

  • Fixed or mobile scaffolding
  • MEWPs
  • Cradles and ropes
  • Ladders and ladder extensions

Surge protection

For compliance with the recommendations of BSEN 62305, surge protection must be included in a lightning protection system.

Power surges or transient over-voltages can be caused in two ways: either as the secondary effect of lightning strikes up to a kilometre away, or by the electrical switching of large inductive loads, such as motors and transformers. They may last less than a millionth of a second, but they are powerful and potentially highly destructive.

The level to which surge protection should be installed is determined by the results obtained from our assessment of risk, and our recommendations for the surge protection measures required are included within our quotation.

Test Strike supplies and installs effective protection from surges with the ESP maintenance free range of voltage protectors ideal for use with:

  • Mains power supplies
  • Data and telecoms equipment
  • RF, CCTV, rail and CATV systems

Regulations Compliance

Lightning protection to commercial structures is covered by BS EN 62305:2006, which sets out the required performance of installed systems and is far more comprehensive than BS6651, which it replaces. It is broken down into the following sections:

BS EN 62305-1 General principles – this provides the basic characteristics of an effective lightning protection system in accordance with the rest of the standards.

BS EN 62305-2 Risk management – details the wider considerations of lightning strikes such as danger to life, possible data loss, and cultural impacts if heritage buildings are damaged. Secondary economic implications of loss of services in the wake of lightning strikes are also analysed.

BS EN 62305-3 Physical damage to structures and life hazard – describes the basic categories of protection from lightning according to risk and provides detailed guidance for an engineer designing a lightning protection system.

BS EN 62305-4 Electrical and electronic systems within structures – provides updated information and guidance for the protection of the sensitive electronic equipment typical in modern buildings, including servers and wired networks. A zoning system is recommended to help protect such equipment from the primary and secondary effects of lightning strikes.

Test Strike Ltd. is part of PTSG, a UK market leader that specialises in access and safety, electrical services, specialist building access and fire solutions.

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