Controlling the Ergonomic Hazards of Wiring Tasks for Household Appliances
December 1997
DHHS (NIOSH) Publication Number 98-108
Employees who perform repetitive wiring tasks on assembly lines may be at risk of developing carpal tunnel syndrome and other musculoskeletal disorders of the hand, wrist, and arm. Because 88% of household appliances are electrically powered, many workers assembling household appliances perform wiring operations. Some workers attach up to five wires during a 20-second cycle time. Workers who make the connections by hand often wrap their fingers with tape at the location of contact stresses. The average amount of force required to connect a standard crimp terminal to its tab varies from 12 to 32 lb, depending on the gauge of the wire.
Controlling the Ergonomic Hazards of Wiring Tasks for Household Appliances