linsheng : “The design of any building or system in a building should begin with the negotiation between the parties. Impact lighting installation or upgrade affects emergency lighting, usually between the responsible persons, or in the case of new construction, development Consultation between personnel and lighting designers and/or installation contractors. In relevant cases, it may also involve architect or building control."
Design consultation should include:
Provide building plans, including escape routes, fire safety regulations;
Emergency lighting design risk assessment (if any) and fire risk assessment;
Details of the relevant emergency lighting and logs;
Recommended duration of emergency lighting;
Whether to use maintenance or non-maintenance accessories, or a combination of the two;
Recommended emergency lighting test procedures;
Power supply (independent lighting or central power supply system);
A strategy to be taken in the event of a normal lighting failure - "left behind" or immediate evacuation, if left in place, follow the procedure at the end of the emergency lighting duration and issue a warning to the occupant when evacuation is required;
Other relevant factors, such as high-risk task areas.
Design considerations and compliance
The detailed design should include a design risk assessment and need to cover at least the above parameters as well:
Position signs and fixtures to meet regulatory requirements (BS 5266 lists the location of the fixtures, including, for example, at each exit gate, near the stairs, so each pedal receives light, close to emergency and fire call points, and escape routes near external lighting Sign, close to fire equipment, direction changes, etc.).
The minimum lux level required to achieve an escape route at the “work plane” or ground level and the illumination required to reach the escape route sign;
Specifying the area of illumination that needs to be illuminated (whether or not it is part of an escape route) in the relevant regulations, or the area identified as needing illumination in the design risk assessment;
The required response time is achieved, ie the maximum time that can elapse between normal power failure and emergency lighting.
Which areas need lighting?
National regulations detail how the escape route needs to be illuminated. It also specifies other areas that need to be illuminated.
National safety regulations recommend that the room should have emergency lighting in the following situations:
They are larger than 60 square meters;
They have an escape route through them (for example, if they have an interior); or
They have a hazard identified by an on-site risk assessment, such as a kitchen.
Toilets with an area of more than 8 square meters are considered to require emergency lighting.
Minimum lux level for emergency lighting
National safety regulations provide a starting point for establishing minimum lux levels for emergency lighting. Please note that the emergency lighting commissioning certificate needs to be accompanied by photometric design data in one of the following formats with an appropriate maintenance derating factor to meet the worst case requirements:
Certified spacing data, such as the ICEL 1001 registry;
Calculations according to BS 5266-1:2016, Annex D and CIBSE / SLL Guide L12;
Print out the results of the appropriate computer program.
Spirit provides the appropriate design data and supports test results as part of our design and commissioning services.
Evacuation lighting must help the occupants evacuate. This means it must:
Enabling them to find/recognize the exit sign and the escape route direction sign at the door;
Enabling them to use escape routes;
Allow them to take security measures before evacuating - turn off the device and check that all personnel have vacated.
recommends horizontal illumination on the ground along a defined escape route centre line with a maximum width of 2 meters and no less than 1 lux. Please note that the previous minimum along the escape route centerline is 0.2 lux, so systems installed before 2016 may not meet the requirements.
An open area with a building area of more than 60 m2 or an open area that has been assessed as requiring emergency lighting shall provide a horizontal illumination of not less than 0.5 lux on the floor of the area, excluding the perimeter of 0.5 m. The actual illumination should take into account the nature of the house and its occupants.
National safety regulations also recommend minimum illumination in high-risk areas as required. Please note that if the building does not evacuate immediately, additional emergency lighting may be required so that the occupant can stay there. The design risk assessment should determine the level of illumination required. For example, if a passenger is about to operate the house normally, then alternate lighting powered by an alternate power source (eg, a generator) may be required to provide adequate lighting conditions.
Response time
The response time depends on whether the panic will occur in a significant number of people, which in turn depends on factors such as the type of building and the people themselves (age, knowledge, training, physical and mental conditions);
Adapt to the time required for emergency lighting to provide new, often much lower, illumination.
The normal emergency response time is 50% of all outputs available in 5 seconds and 100% in 60 seconds. In the high-risk mission area where there is a hazard, complete emergency lighting must be provided within 0.5 seconds.
Central power supply system
The central power supply system has additional design considerations and is specified in the relevant standards.
As stated in the standard, wiring needs to be sufficiently resistant to fire and mechanical damage. Cable fixing and support should be non-flammable so that they do not degrade circuit integrity below the circuit integrity provided by the cable used. Obviously, plastic cable ties and trunking cannot be used.
The wiring of the emergency lighting device needs to be dedicated to installation and separate from the wiring of other circuits. If the cables for the emergency lighting system are installed in a universal containment system, such as a trunking or cable tray, the cables should be isolated from one another by appropriately designated partitions.
LED upgrade: considerations for emergency lighting
When an organization upgrades its lighting to LED lighting, emergency lighting is usually in place.
Care must be taken not to compromise the effectiveness of existing systems. At the same time, LED upgrades offer the opportunity to meet updated standards. We see that many systems do not fully meet the requirements.
Maintenance emergency lights are usually replaced in a similar manner, while non-maintenance lights are usually not replaced because the operating costs are minimal. There is also an opportunity to automate testing.
https://www.linsheng.com
Design consultation should include:
Provide building plans, including escape routes, fire safety regulations;
Emergency lighting design risk assessment (if any) and fire risk assessment;
Details of the relevant emergency lighting and logs;
Recommended duration of emergency lighting;
Whether to use maintenance or non-maintenance accessories, or a combination of the two;
Recommended emergency lighting test procedures;
Power supply (independent lighting or central power supply system);
A strategy to be taken in the event of a normal lighting failure - "left behind" or immediate evacuation, if left in place, follow the procedure at the end of the emergency lighting duration and issue a warning to the occupant when evacuation is required;
Other relevant factors, such as high-risk task areas.
Design considerations and compliance
The detailed design should include a design risk assessment and need to cover at least the above parameters as well:
Position signs and fixtures to meet regulatory requirements (BS 5266 lists the location of the fixtures, including, for example, at each exit gate, near the stairs, so each pedal receives light, close to emergency and fire call points, and escape routes near external lighting Sign, close to fire equipment, direction changes, etc.).
The minimum lux level required to achieve an escape route at the “work plane” or ground level and the illumination required to reach the escape route sign;
Specifying the area of illumination that needs to be illuminated (whether or not it is part of an escape route) in the relevant regulations, or the area identified as needing illumination in the design risk assessment;
The required response time is achieved, ie the maximum time that can elapse between normal power failure and emergency lighting.
Which areas need lighting?
National regulations detail how the escape route needs to be illuminated. It also specifies other areas that need to be illuminated.
National safety regulations recommend that the room should have emergency lighting in the following situations:
They are larger than 60 square meters;
They have an escape route through them (for example, if they have an interior); or
They have a hazard identified by an on-site risk assessment, such as a kitchen.
Toilets with an area of more than 8 square meters are considered to require emergency lighting.
Minimum lux level for emergency lighting
National safety regulations provide a starting point for establishing minimum lux levels for emergency lighting. Please note that the emergency lighting commissioning certificate needs to be accompanied by photometric design data in one of the following formats with an appropriate maintenance derating factor to meet the worst case requirements:
Certified spacing data, such as the ICEL 1001 registry;
Calculations according to BS 5266-1:2016, Annex D and CIBSE / SLL Guide L12;
Print out the results of the appropriate computer program.
Spirit provides the appropriate design data and supports test results as part of our design and commissioning services.
Evacuation lighting must help the occupants evacuate. This means it must:
Enabling them to find/recognize the exit sign and the escape route direction sign at the door;
Enabling them to use escape routes;
Allow them to take security measures before evacuating - turn off the device and check that all personnel have vacated.
recommends horizontal illumination on the ground along a defined escape route centre line with a maximum width of 2 meters and no less than 1 lux. Please note that the previous minimum along the escape route centerline is 0.2 lux, so systems installed before 2016 may not meet the requirements.
An open area with a building area of more than 60 m2 or an open area that has been assessed as requiring emergency lighting shall provide a horizontal illumination of not less than 0.5 lux on the floor of the area, excluding the perimeter of 0.5 m. The actual illumination should take into account the nature of the house and its occupants.
National safety regulations also recommend minimum illumination in high-risk areas as required. Please note that if the building does not evacuate immediately, additional emergency lighting may be required so that the occupant can stay there. The design risk assessment should determine the level of illumination required. For example, if a passenger is about to operate the house normally, then alternate lighting powered by an alternate power source (eg, a generator) may be required to provide adequate lighting conditions.
Response time
The response time depends on whether the panic will occur in a significant number of people, which in turn depends on factors such as the type of building and the people themselves (age, knowledge, training, physical and mental conditions);
Adapt to the time required for emergency lighting to provide new, often much lower, illumination.
The normal emergency response time is 50% of all outputs available in 5 seconds and 100% in 60 seconds. In the high-risk mission area where there is a hazard, complete emergency lighting must be provided within 0.5 seconds.
Central power supply system
The central power supply system has additional design considerations and is specified in the relevant standards.
As stated in the standard, wiring needs to be sufficiently resistant to fire and mechanical damage. Cable fixing and support should be non-flammable so that they do not degrade circuit integrity below the circuit integrity provided by the cable used. Obviously, plastic cable ties and trunking cannot be used.
The wiring of the emergency lighting device needs to be dedicated to installation and separate from the wiring of other circuits. If the cables for the emergency lighting system are installed in a universal containment system, such as a trunking or cable tray, the cables should be isolated from one another by appropriately designated partitions.
LED upgrade: considerations for emergency lighting
When an organization upgrades its lighting to LED lighting, emergency lighting is usually in place.
Care must be taken not to compromise the effectiveness of existing systems. At the same time, LED upgrades offer the opportunity to meet updated standards. We see that many systems do not fully meet the requirements.
Maintenance emergency lights are usually replaced in a similar manner, while non-maintenance lights are usually not replaced because the operating costs are minimal. There is also an opportunity to automate testing.
https://www.linsheng.com
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