Emergency lighting question

[bhamoggy]

might sound a bit stupid but can I break into the permanent live and fit a wago to get an extra feed to fit a new emergency light elsewhere on the circuit?

 

[westward10]

The issue then is those who took the easy option of taking power for the door entry from the nearest source, an emergency light.

 

[D J Sheridan]

But what i need to know is if this is right or wrong.
I mean there is a mains light switch there too - so why not power the keypad from that instead of the keytest switch?
I feel they have wired the keypad between the keytest switch and the emergency light instead of before the keytest switch... as the keypad goes out when testing the EL system... if wired before the keypad would not be affected.

In my opinion an Emergency Lighting Key Test Switch should only operate the Emergency Lighting system and circuitry... not anything else!

I just need to know from a regulation perspective...

 

[westward10]

It is an unusual situation and BS5266:1 for emergency lighting does not consider it. Attached is the section which makes reference to test facilities.

 

[D J Sheridan]

So this is not really clear...
Only thing it state regarding "...any other electrical equipment that could cause a hazard" - but even that in my case is only a keypad system... and one can operate it manually to get out the premises.
I did read somewhere that "no other electrical system is to be connected to emergency lighting systems" but can't remember where i saw it.

Thanks anyhow - looks like the facilities manager will get his way :-(

 

[GBDamo]

Is the key switch global or does each EL/area have a key switch?

If local it could be a simple case of feed taken from the swiched side and not the feed.

 

[D J Sheridan]

Is the key switch global or does each EL/area have a key switch?

If local it could be a simple case of feed taken from the switched side and not the feed.

Hi,
Unusual set up really.
Each above-door luminaire has it's own separate key test switch and each bank of office ceiling lights has it's own key test switch for the EL system.
It is the above door luminaire key test switch that has the key pad system linked to it - I feel the contractor has connected in the keypad between the key test switch and the EL system as opposed to before the key test switch.

Other issue we have is that one door is such that it is the only initial way into the office in the morning via the keypad (also powered by the key test switch EL circuit) and if this particular key test switch malfunctions then there is no other possible way into the office as all other doors has dead bolts on them until the first person comes in and unlocks all ready for the day.