Only qualified & competent personnel shall be permitted to work with electrical equipment only if they labelled with designated color coding for the respective month. Competent personnel must be trained to recognize and avoid hazards with respect to equipment or work methods and must be familiar with applicable codes and standards. All wiring shall have appropriate internal and external grounding. Never bridge fuses and use appropriate rating of fuses for replacement. De-energize all lines on which work will be performed, apply padlocks and lockout tags procedure, and this should be performed as per the Permit to Work System. All temporary power supplies, used to provide power for electrical hand tools, must incorporate RCD’s (residual Current Devices) or ELCBs (Earth Leakage Circuit Breakers) that will trip at a leakage of 30 MA. Trip test to be conducted weekly and recorded. The use of 110v electrical equipment and hand tools on site is recommended, whenever possible. All metal conductive parts within an arm reach from electrical power source shall be properly grounded to facilitate the operation of protection device in case of failure. Live parts of electrical equipment operating at 50 volts or more must be guarded against accidental contact at all times. Exposed non-current carrying metal parts of cord-and-plug-connected equipment that may become energized must be grounded.