IAGC LAND GEOPHYSICAL SAFETY MANUAL Edition 9 ... - CGISS

7) The person in charge should clear the area. Double check all the steps listedabove yourself. With all the workers at a safe distance and the equipment ready,remove the “out of order” tab before turning the power on. Remove locks, turn onpower sources, and operate any valves in order to prepare to test the system.8) Supervisors or person in charge should ensure they have received “Permit ToWork” training as applied to that particular location and people working for themhave received adequate instruction in the system.9) Adequate time should be allowed during shift changes to ensure effective transferof information on outstanding permits.8.2.2 Ladders and Scaffolds1) If you have to climb, use a ladder. Make sure the ladder is designed to supportthe load it is intended to bear. Face the ladder when going up or down.2) Always look up before positioning the ladder and climbing it. You should then beaware of any restrictions that will get in your way when you make the climb orobjects on which you might hit your head.3) A non-conducting ladder is recommended for use when working with electricaltools or any live electrical source. Keep rungs or steps tightened and free from oil,grease, or any slippery substances. All step ladders should be equipped withlocking bars and should be locked in place before use. Never stand on the topstep or rung of any ladder. If using a straight ladder over 3 m (10 ft.) long or high,tie it off at the top to prevent it from falling backwards or sideways. Secure theladder on a firm and even surface. If the surface is smooth, use a skid-resistantmaterial on the bottom of the ladder. Discard any ladder that is cracked or bent.4) Extension and straight ladders should be equipped with safety feet and rubbertips to prevent them from slipping.5) Set the ladder’s base one-fourth of the ladder’s length away from the supportagainst which the top is leaning. Set the ladder firmly before climbing. Ifnecessary, block the bottom and secure the top.6) Do not paint ladders. The paint can hide defects such as cracks. Use a goodgrade of varnish sparingly or use a mixture of linseed oil and turpentine topreserve the wood.7) Step ladders may not be used as straight ladders.8) When you are on a ladder, do not over-reach; the ladder could slip or you couldlose your balance. Get down off the ladder and move it to the proper position.9) Inspect any ladder before use. A-frame step ladders should have spreaders inplace before use.10) If you use scaffolds, make sure all planks and other materials are free from knotsand splits.11) Make sure that the scaffolding can support the load it has to bear.12) The flooring or base on which the scaffolding is placed should be firm and even.Page 113 of 136