How do others decided to provide emergency egress lighting in different areas. Some areas are obvious, like a main corridor. How about a corridor serving a single one person office with no exit on the office end of the corridor? How about a bathroom with one door?
Ryan, Just a small question. In the US, is there different "types" of Emergency Lighting?. What I mean, is, over here in NZ, which is more or less based on UK practice, you have different grades of systems, pertaining to where they are installed. If I may post these examples:
Stand-by Lighting:Is fed from a seperate source from the Mains. Comes into operation, during failure of the normal supply. Is normally fed from the Output of an Alternator, with a change-over switch, to automatically switch the circuit from Mains to Emergency supply.
Sustained supply:Consists of 2 lamps, one of which is Mains fed, the other being fed from Secondary cells (Batteries).
Self-Contained Luminaires:Is a light fitting or sign, that holds all of the associated control equipment and the Secondary cell, used to supply the fitting and only requires to be connected to the Mains supply.
Slave Luminaire:Is a fitting, that contains only a lamp, the control equipment is housed remote to the fitting and also supplies other slave luminaires.
Maintained Lighting Systems:In a Maintained lighting system, the lamps remain alight, regardless of the status of the Mains supply. May be supplied from a floating Battery system, which means that the charging equipment is connected in parallel with the batteries and the lighting load.
Hope that this is of some use. [Message edited to fix HTML error]
[This message has been edited by Trumpy (edited 01-05-2004).]
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