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2.0 INSTALLATION
The electrical protective measures, accommodation and ventilation of the battery installation must be in accordance with the applicable
rules and regulations. This includes layout, safety equipment and warning signs required.
Ventilation
Nickel-cadmium batteries produce hydrogen and oxygen during operation. This is especially true during charging and discharging.
These gases result from electrolysis of the water portion of the electrolyte by the charging current. Natural or artificial ventilation should
be provided in the battery room, or area, to prevent hydrogen from exceeding a 1% concentration. Concentrations above 4% can result
in an explosive mixture, which could be ignited by sparks from adjacent electrical equipment as well as sparks or open flame introduced
by personnel. All air moved by ventilation should be exhausted into the outside atmosphere and should not be allowed to re-circulate
into other confined areas.
Ventilation requirements vary. Contact your local authority for requirements. Use of a hydrogen detector is recommended.
Location
A battery system should be installed in a clean, cool and dry location. Avoid placing the battery in a warm area or in direct sunlight.
Heaters, radiators and steam pipes can cause serious electrolyte temperature variation among cells within a battery system.
Freezing will not cause damage to the battery.
The layout and contents of a battery room must allow easy access to the batteries and must comply with all national and local codes.
Handling
SBS Ni-Cd batteries are normally supplied in a fully charged state and must be unpacked carefully to avoid short circuit between
terminals of opposite polarity. The cells can be lifted by the terminal posts with appropriate equipment.
At all times exercise caution when handling batteries to prevent damage of the plastic containers and covers. The battery containers
and covers are delicate and scratches can lead to weakening of the cases.
Tools
Use tools with insulated handles. Do not place or drop metal objects onto the battery. Remove rings, wristwatch, and metal articles of
clothing which may come into contact with the battery terminals.
Removal
Before removing old batteries, ensure that all electric loads are switched off (breakers, fuses and switches). This must be carried out by
a qualified professional. Batteries must be packaged, shipped and recycled per regulations.
Rack and Spill Containment Installation
Choose location to install rack and ensure that the area is clean and level. Make sure the rack rails supplied are insulated.
Assemble rack frame according to instructions supplied. If instructions are missing, contact rack supplier. Adjust rack rail spacing to
proper width for the cells that are to be installed on the rack.
Set rack frame in final resting place. If mounting to the floor, mark and then drill anchor holes. Install contractor-supplied anchor bolts
and tighten.