Battery Room requirements
Battery Room requirements
(OP)
VRLA (Valve regulated lead acid) battery banks for UPS application requires seperate room as per Industry standard?Also for sealed Ni/Cd battery banks requires seperate room?The electrical utilities such as lighting,power sockets,exhaust fans to be installed in these rooms requires to meet hazardous area classification?Any relavent IEEE/IEC standard specifies these requirement?






RE: Battery Room requirements
Looked up NEC?
Talked to the vendors? Looked up any vendor's websites? Installation manuals?
Talked to some seniors?
Rafiq Bulsara
http://www.srengineersct.com
RE: Battery Room requirements
RE: Battery Room requirements
Google "IEEE standards for battery installation". It is always a good idea to do a little search and make some your own efforts to get some knowledge before posting to 800,000 people.
Rafiq Bulsara
http://www.srengineersct.com
RE: Battery Room requirements
The smaller the room (in respect to size of battery pack) the higher is the possibility of H2 concentration in air reaching explodable levels.
If you do not need to use a separate room for the battery-pack, consider placing them in a room where the H2 concentration can never reach dangerous levels (circulated air, consult your ventilation and fire safety engineers).
My advice is free of charge and of respective quality.
RE: Battery Room requirements
Battery rooms are considered hazardous (classified). So you'll need provisions for class I div II at minimum. read over article 500-504.
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If it is broken, fix it. If it isn't broken, I'll soon fix that.
RE: Battery Room requirements
RE: Battery Room requirements
The IEEE standard has some good information on the amount of hydrogen release during an overchaging condition. The same data can be found in battery supplier's O&M manuals. If the room's ventialtion is sufficient to prevent a build up of hydrogen gas, then the area can be non-classified.
But given the small cost of explosion proof lights, switches and receptacles, it is cheap insurance to use them in the battery room.
There are several other threads on this site discussing this. Try searching for battery or battery rooms.
RE: Battery Room requirements
Normally we follow National Electric Safety Code (NESC).Section 18 of this code specifies that the batteries (flooded) should be in a seperate enclosure and further says that this protective enclosure can be a battery room with seperate continuous ventillation.It also specifies that the recepticles and switches should be outside of this room.Flame proof switching devices can be used if you really need to install them inside the room.
In case of VRLA this enclosure can be a mettalic cabinet.No ventilation required since no gas release.
IEEE 484 implies that the flooded batteries should be in a seperate room with proper ventillation and ficility for cleaning etc etc.
I have no idea about a relevant IEC standard for the installtion.
RE: Battery Room requirements
Regards
Marmite
http://www.hse.gov.uk/pubns/indg139.pdf
RE: Battery Room requirements
Reference your battery manufacturer for the hydrogren gas evolved, it will be dependant on your charge voltage and the number of cells you have.
If you are in Europe, a good reference is EN 50272-2 Safety requirements for Secondary Batteries and Battery Installations
RE: Battery Room requirements
Alan
"The engineer's first problem in any design situation is to discover what the problem really is." Unk.
RE: Battery Room requirements
RE: Battery Room requirements
http://www.thesafetycentre.co.uk/
RE: Battery Room requirements
This doesn't require a separate room.
RE: Battery Room requirements
ht
RE: Battery Room requirements
Geographically, USA region has 60Hz, Asian country has 50Hz. In USA, 1-ph has 110V, 3-ph: 230V.
In India, 1-ph:230V, 3-Ph:440V,
In Germany: 3-ph:400V.
RE: Battery Room requirements
The battery room will become unclasified if you can remove hygrogen concentrations by providing redundant extract fans and supply fans for fresh air. Therefore, requirement for explosionproof electrical utilities such as lighting,power sockets, exhaust fans to be installed in the room can be eliminated.
Regards,
Bilegan
Murphy's Law - If anything can go wrong..it will.