Grounding and Bonding of Electrical Equipment

Electrical circuits and equipment, especially dc generators, should be designed so that exposed parts or other surface-conductive materials are at ground potential at all times. When the grounding cable and the structure are compatible, grounding, when practicable, should be arranged by means of a bus-strap or shear-splice joint adequately insulated on the exterior. 

Provide for complete bonding of unified piping systems containing conductive liquids between individual components, by using conductive fasteners, conductive gaskets, or bond straps (see 

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Keep electrical equipment away from lab sinks and running water. In addition, wet floors should be mopped, not only to prevent a slip hazard but also to prevent electrical shock. A rubber mat provides some protection against electrical shock, but should not be depended on as a substitute for proper grounding and bonding of electrical equipment and maintaining floors in a dry condition. 

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