OSHA Safety Manuals | electrical
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Extension Cord Safety-Take No Chances! We use extension cords almost every day both at work and at home. These are very useful devices, but they can present a fire or shock hazard when either worn out or used improperly. Types of extension cords Extension cords come in either two or three-wire types. Two-wire extension cords should only be used to operate one or two small appliances. Three-wire cords are used for outdoor appliances and electric power tools. The third wire on this cord is a ground and this type of cord should never be plugged into any ungrounded electrical outlet. Only grounded extension...

Electrical Safety Static Electricity Most of us are familiar with static electricity. We all have walked across the rug and reached for the door knob, only to have a spark jump from our hand to the knob. We have also seen the effects of "static cling," when our clothes cling together in the dryer. Static electricity, as a source of ignition for flammable vapors, gases, and dusts, is a hazard common to a wide variety of industries in Alaska. A static spark can occur when an electrical charge accumulates on the surfaces of two materials that have been brought together and then separated...