Standards

Standards

Schneider Electric 2- Division - Nom – Date

Guarantee a minimum light level to avoid panic by occupants and enable activities to continue

Guarantee clear marking of emergency exitsFacilitate the safe evacuation of peopleHelp to localise fire alarm and first aid devices

Why Emergency Lighting

●In case of event which make a power cut, Emergency Lighting must provide enough light in order to:


Synthesis of EN standard

●Market hold by EN regulation and possible local deviation: ● Chance to pull up market (technology / price) connected to safety market

● Schneider Electric is fully aligned with this approach.

> EN 50172For the E.Lighting maintenance and test procedures

> EN 60598-2-22For the E.Lighting product design

> EN 1838For the E.Lighting applications rules


EN Standard

EN 1838: Application rules


Safety lighting for escape routes

Anti-Panic areaHigh risk area

Lighting

EN1838

Emergency lighting

EN1838: Application rules


Escape routes> Facilitate the evacuation of buildings

> To help the emergency services

Anti-panic> To keep people quiet

High risk area> To avoid accidents especially in production plants, building construction...


Types of applications

● 3 sub-categories for Safety Lighting:


Escape route

●Standard EN 1838 says:● If Escape routes wider up to 2 m, luminaries must be

installed to ensure a minimum level of lighting (1 lux) on the floor along the central line of the escape route.



Anti-panic area

●Standard EN 1838 says:● For anti-panic area, luminaries must be installed to ensure

a minimum level of lighting on the floor until 0.5 m from the wall.



Example 1/3

●Example of Escape Route and Anti-panic area

Escape Routes Escape Routes Escape Routes

Anti-panic Anti-panic



Example 2/3

●Example of Escape Route and Anti-panic area

Anti-panicEscape Routes



Example 3/3

●Example of High Risk Area: Production Plants, workshops

Chemical process



Photometric rules

●Lumen: lighting flux unit or lighting power

●Lux: flux received per unit area of the illuminated element.

1 lux = 1 lumen / 1 m²

Different level

Midday on a sunny day 50,000 to 100,000 lux

A sunny afternoon 35,000 lux

Overcast sky 32,000 lux

Top of a TV 800 to 1600 lux

Counter in a department store 500 to 700 lux

Railway ticket office 650 lux

Underground station platform 300 lux

Apartment; domestic light 100 to 300 lux

A well-lit street at night 20 to 100 lux

Light from a candle 10 cm away 10 lux

Full moon 0.1 to 1 lux



0 m


Parameters - Lighting level

●On the floor level:

Escape routes> 1 lux

Anti-panic> 0.5 lux

High risk area> 15 lux


Exit indication



d

p


Parameters - Safety signalling

● d: observation distance● p: pictogram height ● s: 100 for signs externally lluminated 200

for signs self-illuminated

d = s x p


●Externally illumated signs


Parameters - Safety signalling

●Internally illumated signs


Luminescence ratio between the 2 colours at a distance of 15 mm compared to the separation line of the 2 colours

Frame 10 mm not included in the measurement

Background luminescenceSign luminescence


Luminescence measurement of the signs



Location of the luminaires




●At each Door




●Signs are required whenever the direction of escape is ambiguous




●Near changes of direction


Location of the luminairesEN1838: Application rules

●Near each flight of stairs




●At each change of floor level




●Near each intersection




●Near each Fire Alarm call point - fire fighting equipment


● But:● First Aide Site, Fire fighting equipment and call points

should be more lighted than escape route, when not located on an escape route not located on an escape route or in an anti-panic area.



●Near first aid posts




●Over High Danger Areas




●Over Technical Areas




●Outside each final exit



Anti-panic Escape Route

> Provide a minimum lighting level to avoid panic

> Signalisation of the way out

d = s x h

1 Lux

0.5 Lux 0.5 Lux

0.5 Lux 0.5 Lux



Anti-panic Escape Route


●Criteria:● Height of the ceiling

(impact on the needful flux).

● Surface of the area (impact on nb of luminaires to be installed).

What type of product to be used depending on the need:

●Anti-panic areaLuminance to provide the right luminous flux at the ground level


What type of product to be used depending on the need:

●Escape RouteLuminance to provide the right luminous flux at the ground level

Visibility distance to indicate efficiently the route of escape

●Criteria:● Height of the ceiling

(Flux of the product).

● Dimension of the screen (impact on nb of luminaires to be installed).


TransverseSpacing to Wall

1 lux min. on Floor level Escape Route

1 lux

Transverse SpacingBetween Luminaires


Distance between E.Lighting blocks

● Influent parameters●Safety Lighting

● It depends of the luminaire (shape, composition, flux…)

●Location of the product● Height over the floor,

the mounting: wall, ceiling, axes positioning

●The level of light required● 1 lux, 0.5 lux, 15 lux…


Escape routes 1 lux min. along centre line Open (Anti-panic) Areas 0.5 lux min. luminaires arranged in a regular array

CeilingmountingHeight (m)

Transverseto wall

Transversespacing

Axialto wall

Axialspacing

Transverseto wall

Transversespacing

Axialto wall

Axialspacing

2.5 1.8 5.6 1.5 4.7 2.1 5.6 1.7 4.6

3 1.5 5.5 1.2 4.6 2.0 5.8 1.7 4.8

4 - - - - 1.7 5.8 1.5 4.9

5 - - - - 0.8 5.4 0.6 4.6


Distance between E.Lighting blocks

●Spacing Tables● For each products exits a table which defines whether fittings are needed

in addition to those required for the points of emphasis.


EN Standard

EN 50172: rules for maintenances


Maintenance rules EN 50172

●EN 50172 Periodic Maintenance & test records

Series of procedures to keep the safety lighting system working efficiently

●Daily●Make a daily check of the energy source power supply indicators.

●System failures Should have be recorded on a register

●Annually●Make a duration test on each lighting and sign luminairessimulating loss in standard power supply for sufficient time.

●Monthly●Make a test of the luminaires, simulating failure of the standard power supply for enough time to allow verification of the start-up of the lighting devices and signs.

Documents

Standards