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BS EN 1838:2013 Emergency Lighting Testing

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BS EN 1838:2013 Emergency Lighting Testing
BS EN 1838:2013 Emergency Lighting Testing

BS EN 1838:2013 Emergency Lighting Testing

 
First of all, What is BS EN 1838:2013 standard? This standard states general rules for emergency escape lighting and standby lighting systems installed in an office, property, site, building or working place where such systems are required. These areas are predominantly where the public or workers have access.
Use of BS EN 1838 can help save life and unnecessary anxiety and confusion can be alleviated by strategically placed visible signs indicating the way out of a location.
Types of emergency lighting at a location with the objective :
S.No Type of lightning Objective
1 Emergency lighting to ensure the safety lighting is provided on the dot in a specified area when the normal mains power supply to the usual lighting installation fails.
2 Emergency Escape lightning to enable a safe exit from a location and/or building in the event of failure of the mains’ normal supply
3 Emergency Escape route lightning to enable the safe exit from a location or building for occupants by providing appropriate visual conditions and direction finding on escape routes, and in special locations, and to ensure that firefighting and safety equipment can be readily located and used.
4 Anti Panic Lightning to enable safe movement of occupants towards escape routes by providing appropriate visual conditions and direction finding.
5 High-Risk task area lightning to the safety of people involved in a potentially dangerous process or situation and to enable proper shutdown procedures to be carried out for the safety of other occupants of the location or the building.
This standard is for :
1. Lightning Engineers
2. Electrical Contractor
3. Landlords, employers and any individual with responsibility for premises such as hospitals, care homes, hotels, schools, laboratories, theatres, cinemas, concert halls, sports halls, libraries, shops, museums and sports stadium.
Revised editions of BS EN 1838 has :
Illumination of the points of emphasis has been clarified and improved and external illuminations have been clarified as needed to extend to a place of safety
Illumination of fire alarm call points and first aid posts are now consistent, regardless of location
The colour and style of safety signs is amended to the revised ISO format
A deviation of some countries has been amended.
Every employer is required to carry out a risk assessment to identify the risks to people who enter the employer’s premises;
Measures to be taken on basis of Risk Assessment
· Provision of safe means of escape
· Emergency lightning
· take into account the needs of people with disabilities
Emergency Lightning Design Checklist :
1. Inspection of the risk assessment
2. The time span of the emergency lighting
3. Discover emergency escape routes and take account of possible dangers.
4. Find the locations of fire alarm call points, firefighting equipment and fire safety signs
5. Determine the type of emergency lighting system
6. Means of isolation for testing and/or maintenance
7. Coordination/interface with luminaire manufacturers where main luminaires are to be converted into emergency lighting luminaires
8. Discover the exit sign requirements
9. Find any high-risk areas
10. Open areas larger than 60m² floor areas need to be identified
11. Need for external illumination outside final exit doors and on a route to a place of safety.
Locations :
It is paramount that the emergency luminaires are placed to give suitable illuminance in the event of a failure of the normal lighting.
S.no Area Details
1 Open Area Open areas are often called anti-panic lighting. These are areas larger than 60m² floor area or maybe areas identified by the fire risk assessment as requiring safety illumination
2 Emergency Exit and escape route Emergency exits and escape routes should be provided with signs
3 External areas in the immediate vicinity of exits In order to assist dispersal to a place of safety, the external areas in the immediate vicinity of final exits should be illuminated in accordance with the illumination level for escape routes, given in EN 1838 (BS 5266-7) of not less than 1 Lux
4 Lift cars Lift present a problem because the experience of being confined in the dark within a small space for an indefinite period of time is not only unpleasant but may cause harm to those who are nervous or suffer from claustrophobia
5 Moving stairways and walkways Moving stairways and walkways should be illuminated as if they were part of an escape route in the event of mains failure.
6 Toilet Facilities Toilet facilities exceeding 8 metres squared gross area should be provided with emergency lighting as if they were open areas.
7 Switch rooms and plant rooms Emergency lighting should be provided in all motor generator rooms, control rooms, plant rooms, switch rooms and adjacent to main switchgear or control equipment associated with the provision of normal and emergency lighting to the premises.
8 Covered car parks The pedestrian escape routes from covered and multi-storey car parks should be provided with emergency lighting.
Duration of battery backup:
The battery back-up of the emergency lighting system will depend on the use of the building and the evacuation strategy. 3-hour duration is required in places of entertainment (cinemas, theatres, etc) and for buildings that have a sleeping risk (hotels and guesthouses, etc.).
Lumination Levels
The level of illuminance required depends on the function of an area.
Certain specific locations require a specific illuminance and response time the below table gives the locations and response time.
Location Minimum luminance(Lux)
Kitchens 15
First aid rooms 15
Treatment rooms 50
Refuges 5
PlaPlant rooms switch rooms & emergency winding facilities for lifting rooms, switch rooms & emergency winding facilities for lifts 15
Fire alarm control and indicating equipment 15
Reception areas 15
Panic bars & pads or security devices 5
Swimming pool surrounds and diving area 5

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