LADDER SAFETY AT THE CONSTRUCTION SITE：在施工现场的梯子安全.pdf

LADDER SAFETY AT THE CONSTRUCTION SITE FALLS FROM ELEVATED SURFACES ARE FREQUEN TLY LISTED AS ONE OF THE MOST COMMON CAUSES OF ACC IDENTS IN THE CONSTR UCTION INDUSTRY. Most of these accidents occur due to failure to follow basic ladder safety. To help prevent ladder injuries on the jobsite, practice the following safety tips. SETTING UP SAFELY Make sure you select the correct ladder for the job –check the length and duty rating. Proper length is a minimum of three feet extending over the roofline or working surface. Inspect your ladder before each use for loose or damaged: ? Steps ? Rungs ? Spreaders ? Rung dogs ? Safety feet ? Other parts Clear the area where you will be working. Never place a ladder in front of a door that isn’t locked, blocked or guarded. Because metal ladders conduct electricity, use a wooden or fiberglass ladder near power lines or electrical equipment. Check that all locks on extension ladders are properly engaged before placing your ladder on a steady surface. The ground underneath the ladder should be level and firm. Large, flat wooden boards braced underneath a ladder can help level it on an uneven surface or soft ground. Straight, single or extension ladders should be set up at approximately a 75 degree angle. Use the 1:4 ratio to ensure your safety when on a ladder. Place the base of the ladder one foot away from whatever