SAFETY PRECAUTIONS TO BE OBSERVED WHEN WORKING IN OVERHEAD LINES

• While you switch off supply and proceed to do repairs in the line or circuit, doubly ensure that no one else should be able to switch it on.
• After opening the AB switch, if you want to undertake any work, lock the mechanism. Only you should be able to release the lock after the work is over.
• When you handle tall objects, look up, and see whether there are power lines.
• While moving tall 4-legged ladders ensure the absence of power lines on the way.
• Do not use abnormal force in electrical works. The tools such as cutting pliers and screwdrivers must be properly insulated.
• Before undertaking any work, particularly at a height of, say even 3 meters or more, inspect thoroughly for the presence of power supply lines overhead and take extra precautions while working under them.
• We have front and side vision only. Whenever any lengthy/tall objects/machines are to be moved we should look up towards the sky and see whether there are power lines above.
• It is wisdom to expect the unexpected. Always think of natural forces, which may affect the supply line and take appropriate preventive action to protect yourself. Even if the supply is temporary, take all the care as though it is permanent.
• Do not undertake any work particularly with long wires or rods or pipes underneath a power line.
• Ground clearance from the power line is to be maintained as per I.E. rules. Children should not be allowed to play with electric supply systems.
• Do not assume things before undertaking repairs in electrical systems. Make yourself sure by asking as many people as possible in case of even a small doubt.
• A line tester is the cheapest testing device for LT supply. A good tester in the pocket, and its use whenever undertaking work in electrical systems, will save your valuable life.
• Never neglect the street light wire in overhead lines. Also never be over confident that supply will not be resumed. Power supply may come any time. The safest way is to test and ascertain that there is no supply. Use earth rods and work.