How does a contractor install a battery cabinet?

Contractor secures the battery cabinet to the floor of the building following the installation manual instructions d. Contractor runs wire and conduit for AC control power (100-120VAC for LG, 480V or 208V 3W+G for Samsung). This power should be taken from the UPS output, so the BMS will remain functional during power outages.

How do I set up an UPS battery room?

Open-rack battery rooms must be adjacent to the UPS room. Battery cabinets must be adjacent to the UPS equipment. Cable lengths from multiple cabinets should be kept as nearly identical as possible to prevent voltage drop variations. One cabinet should be able to hold at least one complete string of cells.

How many cells can a battery cabinet hold?

One cabinet should be able to hold at least one complete string of cells. Best practice is that strings should not be split between two cabinets in order to ensure reliability of the entire string. Figure 1 - Battery cabinet with top terminal cells A battery disconnect switch should be located as closely as possible to the end of a string.

Do battery cabinets need to be locked?

Battery cabinets must enclose the batteries behind locked doors accessible only to authorized personnel. As long as the cabinets are kept locked, they can be located in a computer room or other rooms accessible by non-battery technicians.

Do battery cabinets have top clearance?

Battery cabinets are frequently criticized for their lack of top clearance. For example, in a cabinet containing multiple strings of low ampere-hour batteries, there might be several shelves, each with one string of cells. The cell units on each shelf might be arranged two, three, or more cells deep.

Where should a battery disconnect switch be located?

A battery disconnect switch should be located as closely as possible to the end of a string. On open battery racks, the disconnect switch can be mounted directly to the rack. On battery cabinets, the disconnect switch should be mounted in the door to allow the battery to be disconnected from the UPS before the door is opened.