Our experienced testers conduct over 14,000 emergency lighting tests every year in properties across the country. They test and inspect all units to ensure they’re functioning correctly.

This is purely for emergency use, and so only switches on when there is an emergency and the mains electricity turns off. The battery is charged by the mains and there is a small LED light which should show a green light. This also has to have regular testing to ensure that this still works as it does not switch on usually. This is usually the exit signs. Combined Emergency Lighting An Emergency Lighting Certificate is a document that certifies that the emergency lighting system in a building has been installed, tested and commissioned in accordance with the relevant regulations and standards. The certificate is issued by a qualified electrician or contractor who has carried out the installation and testing of the emergency lighting system. Our experienced testers conduct over 14,000 emergency lighting tests every year in properties across the UK. They test and inspect all units to ensure they’re functioning correctly. Pre-service audit The duration that emergency lighting should stay on for depends on the relevant regulations and standards, as well as the specific requirements of the building and its occupants. However, the general requirement is that emergency lighting should remain illuminated for a minimum of 1 hour, but it may need to remain illuminated for up to 3 hours in certain circumstances. Simple system would be you switch the main lights on as normal, then operate the test key switch which simulates a power cut - so you can visually see the EL works.

We also offer a number of additional services which are available alongside our regular monthly emergency lighting or weekly fire alarm tests. After this full discharge test, precautions must be taken as the batteries can take up to 24 hours to recharge and so the premises should not be occupied until everything is restored. For many buildings it is possible to do this over the weekend, but for flats and other premises which are occupied full time, there will need to be other arrangements whilst the batteries are recharging.

Yes and no. If it is a small building and all the emergency lights are on one circuit, then yes, you have no choice. However if it is a large building then it would make sense to stagger the testing. This way the whole building would not be affected if there was a power cut, during the recharge time. Testing Central Battery Systems This means that the emergency light fitting works with the main lights and is connected to the other lights and is controlled with the normal lighting. When the power fails, the emergency light remains on through the battery which has been charged whilst the mains is on. It can also be turned off whilst the mains is on if it is not needed. The battery often emits around 10% of the normal light levels. Non-Maintained Emergency Lighting L PERM is the permanent live supply and must have no normal (manually operated) switch or sensor on it. However, a key-switch is permissible and will usually be installed on this circuit. L PERM has two functions:

 Why choose Metro Safety

As I understand it the EL light units that (should) have LEDs on them, the LEDs are illuminated when in normal 'charging' mode but go out when in EL mode? Testing involves simulated, circuit-by-circuit mains lighting systems failures. Using a ‘fishtail key’ is one way of conducting this testing. Annual testing requires three-hour load testing, including battery testing and maintenance. Once the mains failure simulation has taken place, lighting failures and issues need to be noted and a plan of action to rectify problems should be devised.