EM Lighting

pennychew · Jan 23, 2015

Something i know little about, i know i can find loads out by googling and searching on here but i'll probably just put it off then whereas if people post info up i'll read it and ask questions that way!

Some of the places i work there are PSU's mounted up by the panels and in others there isn't. I know you have maintained and non maintained but not sure on the differences.

Not looking to design or install any of this, info is just for learning about it

Cheers

Bobster · Jan 23, 2015

http://www-public.tnb.com/eel/docs/emergilite/Emergi-Lite_Emergency_Lighting_Design_Guide.pdf

Have a read

Plonker 3 · Jan 23, 2015

Maintained fittings- lamp on constantly weather in mains fail mode or charging

Non-maintained fittings- lamp only illuminated in mains fail mode

Sustained fittings- These switch on and off with a switch, but also require a permanent feed to charge the batteries

There are also some installs where you will get a remote battery pack and this will feed several em lights across a site.

telectrix · Jan 23, 2015

basically maintained is on all the time, non-maintained only illuminate on loss of supply.

pennychew · Jan 23, 2015

Dillb said:
Maintained fittings- lamp on constantly weather in mains fail mode or charging

Non-maintained fittings- lamp only illuminated in mains fail mode

Sustained fittings- These switch on and off with a switch, but also require a permanent feed to charge the batteries

There are also some installs where you will get a remote battery pack and this will feed several em lights across a site.

The remote battery pack is what i have seen on a couple of sites, if this battery pack is present would the em lights still have a battery inside?

Plonker 3 · Jan 23, 2015

No, ad the remote batteries will operate the lamp in the event of mains failure.

pennychew · Jan 23, 2015

RoB2 said:
http://www-public.tnb.com/eel/docs/emergilite/Emergi-Lite_Emergency_Lighting_Design_Guide.pdf

Have a read

Thats like a 'who's who' of EM lighting, cheers!

pennychew · Jan 23, 2015

Dillb said:
No, ad the remote batteries will operate the lamp in the event of mains failure.

So if you had a room with 6 battens and you wanted two as EM you would use all standard battens but just wire two up to the remote batteries?

Plonker 3 · Jan 23, 2015

I am not too sure if you can just put a fluorecent fitting onto a remote battery pack. As you need to provide a seperate ballast to drive the EM side of the fitting.

Bobster · Jan 23, 2015

pennychew said:
So if you had a room with 6 battens and you wanted two as EM you would use all standard battens but just wire two up to the remote batteries?

It shows how you would convert a standard fitting to an EM one within that .pdf.

pennychew · Jan 23, 2015

Dillb said:
I am not too sure if you can just put a fluorecent fitting onto a remote battery pack. As you need to provide a seperate ballast to drive the EM side of the fitting.

I've just been in the shower and I was thinking about that!

pennychew · Jan 23, 2015

I'm only up to page 8 at the mo, I'll go through it properly when I get back in tonight

Plonker 3 · Jan 23, 2015

RoB2 said:
It shows how you would convert a standard fitting to an EM one within that .pdf.

Is it possible though with a remote battery pack?

pennychew · Jan 23, 2015

Ill take a pic of some fittings today and see how they've done it

Bobster · Jan 23, 2015

Dillb said:
Is it possible though with a remote battery pack?

I can't see why not, you would still need an EM ballast withing the fitting though.

Plonker 3 · Jan 23, 2015

RoB2 said:
I can't see why not, you would still need an EM ballast withing the fitting though.

Just thinking of local mains failure so the batteries may be on a different MCB. Therefore in a fluorescant fitting they may not operate when needed.

Bobster · Jan 23, 2015

If you look at page 28 of the .pdf I posted. The mains supply wouldn't be an issue, in effect you are just removing the battery from the fitting and storing else where. It would just be wired to the EM ballast.

tazz · Jan 23, 2015

The PDF Rob2 posted is one of the best detailed references I seen for a while.
Most lighting manufactures produce em kits to work with existing fittings. From a design point of view, there is nothing worse than designing a building, with flush fitting, neat lighting only to have ugly surface fitted em bulkheads fitted along side them. So matching em lighting and normal lighting in say a corridor, makes the job easier, neater and controllable from pirs/BMS or switching.