Batteries being charged in the wet formation process |
In the dry
charge (plate) formation process, the first step, called tacking consists of plates
being placed in a tank and lead bars being welded, or "tacked" on.
Battery plates are then formed (or charged) in tanks. The major source of lead exposure in the
formation process comes from lead
fumes. Wet (case) formation does not include any
associated lead exposures during formation
because batteries are assembled and filled
with acid prior to charging.
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| Formation |
Potential Sources of
Exposure
- Lead fumes are emitted from using a torch to weld lead.
- High exposure to lead may occur from moving plates in and out of acid tanks, drying ovens, and racks.
- Exposure to acid splash or mist may occur when placing the plates in the acid tanks.
- Lead dust may become airborne during the cleaning of panel lugs using brushes.
Possible Engineering Controls
Possible Work Practice Controls
- Ensure ventilation is working properly.
- Wet down plates before they are put into the
system.
- Use fork lifts to move groups in and out of drying
ovens.
- Use instruments to move plates in and out of
tanks.
- Vacuum racks and ovens before moving
plates.
- Keep floors around ovens, racks, and storage areas
clean.
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