13.1.4-4 Protecting Maintainers from Heat and Electrical Shock

Equipment or parts that retain hazardous levels of heat or electrical potential during maintenance should be located where maintainers will not touch them during their work, or they should be shielded.

Additional Information:
For example, high-current switching devices should be shielded to prevent maintainers from coming into contact with them. Internal controls, such as switches and adjustment controls, should be located away from hazardous high-voltage sources with which the maintainers may make contact while operating the controls. Shocks and burns received from equipment may injure maintenance workers or cause them to make sudden motions resulting in damage to equipment. This concern is particularly important for parts that retain energy after external energy sources have been removed or turned off.