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Emergency Light Test Switch.

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Is it o.k. to use a non switched fused connection unit as an emergency light test switch? If not why not?


Z.
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    From a regs perspective, I would think this is regarded as 'functional switching' (switching for the function of testing emergency lighting) and as such is not permitted by means of an unswitched FCU by table 537.4.


    Jason.


    I disagree as "functional switching" is defined on page 20 as;" An operation intended to switch "on" or "off" or vary the supply of electrical energy to all or part of an installation for NORMAL OPERATING PURPOSES." (Caps mine.)


    Normal operating purposes like the use of a light switch is NOT involved here. The fused connection unit would only be used occasionally for testing purposes of the emergency light.


    Z.


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  • 0



    From a regs perspective, I would think this is regarded as 'functional switching' (switching for the function of testing emergency lighting) and as such is not permitted by means of an unswitched FCU by table 537.4.


    Jason.


    I disagree as "functional switching" is defined on page 20 as;" An operation intended to switch "on" or "off" or vary the supply of electrical energy to all or part of an installation for NORMAL OPERATING PURPOSES." (Caps mine.)


    Normal operating purposes like the use of a light switch is NOT involved here. The fused connection unit would only be used occasionally for testing purposes of the emergency light.


    Z.


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