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BS EN 1838:2013 Emergency Lightning BS EN 1838:2013 Emergency Lightning

BS EN 1838:2013 Emergency Lighting

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

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.NoType of lightningObjective
1Emergency lightingto 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.
2Emergency Escape lightningto enable a safe exit from a location and/or building in the event of failure of the mains’ normal supply
3Emergency Escape route lightningto 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.
4Anti Panic Lightningto enable safe movement of occupants towards escape routes by providing appropriate visual conditions and direction finding.
5High-Risk task area lightningto 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.noAreaDetails
1Open AreaOpen 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
2Emergency Exit and escape routeEmergency exits and escape routes should be provided with signs
3External areas in the immediate vicinity of exitsIn 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
4Lift carsLift 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
5Moving stairways and walkwaysMoving stairways and walkways should be illuminated as if they were part of an escape route in the event of mains failure.
6Toilet FacilitiesToilet facilities exceeding 8 metres squared gross area should be provided with emergency lighting as if they were open areas.
7Switch rooms and plant roomsEmergency 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.
8Covered car parksThe 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.

 

LocationMinimum luminance(Lux)
Kitchens15
First aid rooms15
Treatment rooms50
Refuges5
PlaPlant rooms, switch rooms & emergency winding facilities for lifts rooms, switch rooms & emergency winding facilities for lifts15
Fire alarm control and indicating equipment15
Reception areas15
Panic bars & pads or security devices5
Swimming pool surrounds and diving area5