OSHA regulations, the NEC, NFPA 70E Standard for Electrical Safety in the Workplace, and the National Electrical Safety Code (NESC) provide a wide range of safety information. Although these sources may be diffi- cult to read and understand at first, with practice they can become very useful tools to help you recognize unsafe conditions and practices. Knowledge of OSHA standards is an important part of training for electrical apprentices. See the Appendix for a list of relevant stan- dards.
Always lock out and tag out circuits.
(2) Evaluate hazards
When evaluating hazards, it is best to identify all possible hazards first, then evaluate the risk of injury from each hazard. Do not assume the risk is low until you evaluate the hazard. It is dangerous to overlook hazards. Job sites are especially dangerous because they are always changing. Many people are working at different tasks. Job sites are frequently exposed to bad weather. A reasonable place to work on a bright, sunny day might be very hazardous in the rain. The risks in your work environment need to be evaluated all the time. Then, whatever hazards are present need to be controlled.
(3) Control hazards
Once electrical hazards have been recognized and evaluated, they must be controlled. You control electrical hazards in two main ways: (1) create a safe work environment and (2) use safe work practices. Controlling electrical hazards (as well as other hazards) reduces the risk of injury or death.
❚ Evaluate your risk.
❚ Take steps to control hazards: Create a safe workplace. Work safely.