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A key-switch. This is installed on the permanent live supply to an emergency fitting. When actuated it isolates the emergency fitting, thus simulating a power failure. Begin the test: Switch off the main power supply to simulate a power outage or emergency. The emergency lighting should activate automatically and remain on for at least 30 minutes. First and foremost, your emergency lighting must be tested by a competent person due to the important nature of the system in ensuring occupant safety in the event of an emergency.
Building owners and operators should ensure that their emergency lighting systems meet all applicable codes and regulations, and that they are properly maintained to ensure occupant safety. Emergency lighting test keys are designed to operate test switches located on emergency lighting control panels.The BSI standard BS 5266-1:2016 covers emergency lighting in all types of buildings, including commercial, industrial, and residential buildings. It requires regular testing of emergency lighting systems using appropriate test switches and keys.
The British Standard states every emergency lighting system should have means of simulating a failure of the the normal supply for test purposes, with out interruption of the normal supply, this is all you get and interpret as you choose.
If everyone goes home at 5pm then perhaps start the test then, or up to 3 hours before. So you know that if there was a problem after the test no one would be in the building and the emergency lights would have a long time to recharge overnight, before people start working again in the morning. But the building is used 24/7 365 days a year! Be very careful when touching anything inside the electrical consumer box, there is a danger of electrocution if something is wrong. If in doubt seek a qualified electrician ** What time of day should I test the emergency lights High risk task area lighting provides light for the safety of people involved in potentially dangerous processes. This lighting enables proper shut-down procedures to be followed for the safety of the operator and other occupants of a building.
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