Emergency Light Installation Height
How to install emergency exit lighting.
Emergency light installation height. After 1 5 hours the illumination level may decline. Most emergency lights and exit signs can be installed just like you would a commercial light fixture. R i s k c o n t r o l 3 6 0. Osha codes and regulations stipulate that the entire egress route be lighted to a minimum level of 1 candlepower measures at a height of 1 foot above the floor.
5 5 0 0 g l e n d o n c o u r t s u i t e 3 6 0 d u b l i n oh 4 3 0 1 6 1 877 3 6 0 3 6 0 8 w w w. Nfpa 101 7 9 2 2 requires that new emergency lighting power systems be at least type 10 class 1 5 level 1 systems as defined in nfpa 110. To check press the push to test switch the light inside. An emergency lighting installation may be either a central standby source such as a bank of lead acid batteries and control gear chargers supplying slave fittings throughout the building or may be constructed using self contained emergency fittings which incorporate the lamp battery charger and control equipment.
Normal operation of this unit should then take effect. In the first 1 5 hours after a failure emergency lighting must provide an average of one foot candle and no less than 0 1 foot candle at any point along the path of egress. The battery in this unit may not be fully charged after electricity is connected to the unit let the battery charge for at least 24 hours. Illumination levels are allowed to decline to an average of 0 6 fc with a 0 06 fc minimum at the end of the 90 minute period.
These safety fixtures must however must be connected directly to the ac power circuit. Standard mounting height of 7 5ft illuminates 1 footcandle fc spaced at 14ft for a 6ft path of egress. Using a cord set is not approved in most cities and reduces the effectiveness of the battery backup unit. It is important to consider this at all times before installation of any emergency lighting.
The majority of emergency lighting systems have slc sealed lead calcium. C o m reaching the exit quickly. Standard mounting height of 7 5ft illuminates 1 footcandle fc spaced at 18ft for a 3ft path of egress. The emergency lighting must be arranged to provide initial illumination of not less than an average of one foot candle 10 8 lux and a minimum at any point of 0 1 foot candle 1 1 lux measured along the path of egress at floor level.
The light source of unit used in an office with a mounting height of 7 9 feet will not work in a situation where the emergency light is mounted 18 feet above the floor. Installation instructions dual head emergency lighting fixture important.