fittings, it is important to understand that with any emergency fitting, the introduction of batteries and an invertor to the interior of the luminaire can change the ambient temperature and therefore the operation and output of the fitting. As a manufacturer of LED emergency luminaires, it is important that our product designers understand the important specification requirements of the emergency fittings we sell. The specific tests we carry out ensure that when in their emergency state, our fittings perform to the full compatibility of the battery unit to deliver the required emergency luminaire lumens and that there is no impact on the published characteristics of the LEDs or drivers. The manufacturers undertaking the conversion from standard halogen fittings to LED would be responsible for re-undertaking the LED thermal testing of the luminaire. To adhere to the British Standard, manufacturers who have emergency versions of catalogue products would be expected to have carried out full product testing on the emergency version to confirm the photometrics.

GreenBrook have all its luminaires tested by an independent test house and all photometric data available to pass onto designers and contractors.

Who is ultimately responsible for the Emergency Lighting?

The building owner is required to prepare a risk assessment detailing the emergency-lighting risks they have identified. In the case of a multi- occupancy building, the tenants are responsible for doing a risk assessment for their tenanted area, and the landlord is responsible for the common areas.

It is now considered that emergency lighting is a primary factor in fire safety and should enable occupants to immediately locate fire-fighting equipment and alarms. Emergency lighting installations are examined as part of a buildings overall fire precautions risk assessment. BS5266 refers in more detail to competency standards for the designer, installer and the maintainer. The responsible person must ensure they engage competent people for all stages of procurement and operation of the emergency lighting system. An installation laid out by lighting designers with basic knowledge of electrical engineering could be photometrically calculated and could give the suitable briefing information to the electrical installer.

The regulations define that the building owner/organization is the responsible person to arrange the emergency lighting procurement and, as such, they must ensure the correct provision, operation and testing of the emergency lighting system(s). Best- practice methodology responsibility includes: ● A competent design ● A competent installation ● Annual risk assessments (including regular testing with audited test records proving the continuing functionality of emergency lighting system(s), including photometric performance at the end of stated duration)

● An updated emergency lighting log book

Ideally Testing should include: ● A daily visual check of any central controls if a centrally powered system with slave luminaires is installed;

● A monthly function test by operating the test facility for a period sufficient to ensure that each emergency lamp illuminates

● An annual full discharge test to ensure that the lamps are lit for the full discharge period (usually 3 hours) and that the batteries are re-charging

A typical test is using a key operated switch that is located either near the main fuse board or adjacent to relevant light switches. This is also known as a ‘secret key’ switch, as it is designed to allow testing of emergency lights while preventing non-authorised operation of the test switch.

New emergency fittings come complete with an auto testing feature which can be cost effective and more reliable than manual testing. It’s considered the best way to meet current testing regulations and reduces the burden of testing manually.

Emergency lighting is a general term

subdivided into 'emergency escape lighting', ‘emergency safety lighting’ and 'standby lighting'. November 2019 electrical wholesaler | 17

Even though Emergency Lighting is a legal requirement, we can now choose a variety of styles from downlights to bulkheads to ensure the fitting is in keeping with its surroundings. GreenBrook’s Phoenix range is a selection of LED

Twin spots, Downlights, bulkheads, exit signs, recessed lights and emergency gear trays.

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