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8.1 Stairwell or Hall Lighting
8.1.1 Demands on Stairwell Lighting
The basic requirements for a stairwell lighting system in an
apartment block are as follows:
When someone is using the stairs, the stairwell lights
should be on.
If no-one is in the stairwell, the lights should go out in
order to save energy.
8.1.2 Previous Solution
Conventionally, there have been two ways to control such a
lighting system as follows:
By means of a current impulse relay
By means of automatic stairway lighting
The wiring for the two lighting systems is identical.
Distribution by
means of current
impulse relay
or
automatic
stairway lighting
Components used
Switches
Automatic lighting device or current impulse relay
LOGO! Manual
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Distribution box
Switches
Applications
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Lights
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