As an alternative, OSHA does allow you to develop and implement an assured equipment grounding conductor program. The program must be in writing and address the following items: 1. Assignment of a competent person, 2. Daily visual inspection of all equipment before use, 3.The performance of tests on all cord sets at varying intervals (continuity and conductor attachment), and a documented system to track all tests. See 29 CFR 1926.404(b)(1)(iii)[A] through 1926.404(b)(1)(iii)[E] for further details.
Thursday, April 22, 2010
Electrical hazards are a significant source of injuries and fatalities in the construction industry. Employee contact with electricity is responsible for approximately 18% of the fatalities observed in construction. Many injuries and fatalities could be prevented through the use of safe electrical work practices that include providing ground fault circuit interrupters on all temporary wiring.
All employers on construction sites are required to use either ground fault circuit interrupters (GFCI) or assured equipment grounding conductor programs to protect employees from the risk of electrocution or shock. There are several different means of employing GFCI depending on the application: A. as an attachment to an appliance cord, B. installed at the breaker panel, or C. provided at the receptacle.
The ground fault interrupters should be tested frequently to ensure they are functioning properly. The manufacturer usually recommends that you test the GFCI monthly. If you expect to work in a dusty environment, you should ensure all of the GFCI are covered and tested more frequently.