China Emergency Light – Basic Requirements For Emergency Lighting Design

    The primary task of practical emergency lighting design is to determine the requirements for a particular installation, taking into account building permit requirements. It is important to conduct site-specific risk assessments to ensure that all aspects of emergency lighting requirements within the building are met. The following steps cover only the basic design considerations for emergency lighting systems.

　　Defining building standards

　　Escape route, route exit and final exit (internal and external).

　　Open area > 60 square meters.

　　Areas of high-risk tasks (mobile machinery – thermal hazards, etc.)

　　Enter the area, for example. Lifts, escalators, platforms.

　　The total area of ​​disabled toilets and toilets is > 8 square meters.

　　Alarm call points, fire fighting equipment and emergency areas.

　　Occupation time (sleep risk, such as hospitals, hotels, etc.).

　　Select system type

　　Central battery / self-contained, duration, etc.

　　Choose the right light source

　　i e.LED or Fluorescent, select the type of fixture according to the desired position,

　　note. BS 5266 specifies that the luminaires on the stairs must provide direct illumination on the stair steps. Regardless of size, there must be at least two luminaires in the escape cabin.

　　Illumination design

　　Escape routes

　　maximum. Route width = 2 meters (if it is wider, it is considered as multiple)

　　The lowest 1 lux. Add 0.5Lux to the centerline along the centerline to cover 50% of the route width.

　　Open area

　　Usually greater than 60 square meters or determined by risk assessment: 0.5 lux minimum (excluding the 0.5 meter belt around the fence).

　　High-risk task area

　　10% of normal illumination (not less than 15 lux)

　　As mentioned above, emergency luminaires should be focused, for example

　　Direction or level change (down risk)

　　Close to the exit sign

　　Near fire equipment

　　Beyond the final exit

　　note. “Close” means within 2 meters.

　　Please note that this guide for    China Emergency Light     consolidation covers the basic requirements for emergency lighting design. You need to consider the building requirements and ensure that all risk assessments are carried out.

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