module 13

Question 1

Define emergency lighting ?

Answer 1

Lighting provided for use when the supply to the normal lighting fails

Question 2

define emergency escape lighting?

Answer 2

.. That part of emergency lighting that provides illumination for the safety of people leaving a location or attempting to terminate a potentially dangerous process before doing so

Question 3

define maintained emergency lighting

Answer 3

.. Luminaire in which emergency lighting lamps are energised at all times when normal or emergency lighting is required.

Question 4

define non maintained emergency lighting

Answer 4

.. Luminaire in which the emergency lighting lamps are in operation only when the supply to the normal lighting fails

Question 5

purpose of emergency lighting?

Answer 5

.. Why do we have emergency lighting?

To allow the safe movement of people along escape routes towards and through the exits provided to a place of safety.

Question 6

minimum LUX on escape routes?

Answer 6

1 Lux

older systems may be 0.2 Lux

Question 7

when EM lighting is required within rooms ?

Answer 7

Rooms larger that 60 M2

rooms risked assessed as needing emergency lighting

not less than 0.5 Lux

Question 8

Duration available?

Answer 8

10
60
120
180

Mins

Question 9

Marking and cat of operation?

Answer 9

.. Operation

Question 10

time required for most building and setting?

Answer 10

3 hours ( 180 mins)

Question 11

emergency lighting requirements in design?

Answer 11

.. 1 Designed so that when power fails they operate

6. 2 If failure of an individual normal light could risk safety, maintained luminaires should be used
7. 3 Preferably two in each room so failure of an individual luminaire does not leave total darkness
8. 4 At least 2m high.
9. 5 Lots of low output luminaires is preferable to a few high powered luminaires
10. 6.2 External luminaires on outside exit routes, street light may be OK
11. 6.3 In lift cars.

4 On moving stairs & walkways

6. 6.5 All toilets for disabled and/or any multi closet toilets with no ‘borrowed’ light . Any toilets facilities over 8m² (this does not include any designed to accommodate single able bodied person or en suite facilities in hotel bedrooms)
7. 6.6 Motor generator & plant rooms
8. 6.7 Covered car parks.

Question 12

area Emergency lighting should be sighted?

Near = within 2 metres

Answer 12

near Emg Exits

Near stairs , so each flight receives direct light

change of level

Near to mandatory emergency exit signs and safety signs

at each change of direction.

at each intersection corridor

near to final exit outside of the building

near each first aid point

near to firefighting equipment

Question 13

min requirement for premises that may not be immediately evacuated ?

i.e. sleeping accommodation
places of entertainment
or if the premise will be reoccupied before batteries are fully charged

Answer 13

3 hours

1 hour duration should be used only if the premises will be evacuated immediately upon supply failure and not re-occupied until full capacity has been restored.

Question 14

when should a non maintained system be used?

Answer 14

..most cases

Question 15

when should a maintained system be used?

Answer 15

.. Where normal lighting might be dimmed or turned off, a maintained or combined emergency escape lighting system should be installed

For some cinema and theatre auditoria where the recommended maintained illuminance is likely to effect the normal working, can be reduced to 0.02 lux.

Question 16

when and how should lighting be tested?

Answer 16

… Full test is done at a time of low risk to allow the batteries to charge:
−Daily – visual check on indicators to see if supply is OK
−Monthly – isolate power supply observe all luminaires and indicators
−Annually – isolate & test for the full duration
−Generators see ISO 8528-12
•Fill in log book.

Question 17

min Lux in areas?

Answer 17

.. Kitchens 15 lux
•First aid rooms 15 lux
•Treatment rooms 50 lux
•Refuges 5 lux
•Plant rooms 15 lux
•Fire alarm panel 15 lux
•Reception area 15 lux
•Panic bars & pads 5 lux
•Swimming pool surrounds 5 lux.