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0 0 SAFE WORK PRACTICES FOR CONTRACTORS WORKING AT RETAIL PETROLEUM/CONVENIENCE FACILITIES 23 7.5 ELECTRICAL HAZARDS IMPACTING WORKING AT HEIGHTS 7.5.1 Overhead Electrical Hazards Portable ladders and all other working at heights equipment shall have nonconductive side rails if they are used where the employee or the ladder may contact exposed energized parts.Electrical hazards shall be considered in the JSA before working at heights. 7.6 LADDER POSITIONING AND USE 7.6.1 Ladder Positioning 7.6.1.1 Unstable Soil Conditions Use ladders only on stable and level surfaces,unless the ladders are secured to prevent accidental displacement. 7.6.1.2 Ladders on Slippery Surfaces Do not use a ladder on a slippery surface,unless you secure the ladder or it has slip-resistant feet to prevent accidental displace- ment. Never use slip-resistant feet as a substitute for care in placing, lashing, or holding a ladder used on a slippery surface. Examples of slippery surfaces include flat metal or concrete surfaces constructed so that there is no way to prevent them from becoming slippery. 7.6.1.3 Falling Object Hazards Always keep the area around the top and bottom of the ladder clear.Secure all tools and equipment that are being carried up a lad- der.The bottom of the ladder should be barricaded to prevent movement by unauthorized personnel,and to ensure that no one is standing in an area where they may come in contact with a falling object. 7.6.1.4 Ladders in Traffic Flow You shall secure ladders placed in any location where they can be displaced by workplace activities,pedestrian traffic or vehicular traffic,such as in passageways,doorways,or driveways.If you cannot secure the ladder,use a barricade to keep activity or traffic away from the ladder.Service vehicles may be used as part of a barricading system for these purposes. 7.6.1.5 Protection of the Public When ladders shall be placed in areas of pedestrian or vehicular traffic,the area under the ladder shall be barricaded to as to deter individuals or vehicles from passing underneath the ladder. 7.6.1.6 Non-self-supporting Ladders Place the top of a non-self-supporting ladder so that the two rails are supported equally. 7.6.2 Ladder Use 7.6.2.1 Loads Ladders shall not be loaded beyond the maximum intended load for which they were built,nor beyond their manufacturer's rated capacity. 7.6.2.2 Purpose Ladders shall be used only for the purpose for which they were designed. 7.6.2.3 Oil&Grease Always keep ladders free of oil,grease,and other slipping hazards. 7.6.2.4 Top Step The top or top step of a step ladder shall never be used as a step.