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2 <br /> w - <br /> IN <br /> f <br /> LAMMERSVILLE SCHOOL DISTRICT <br /> Site safety Plan <br /> October 16, 1991 <br /> protection against fires, overheating, and destruction of insulation on <br /> wiring. <br /> GFCIs can be used successfully to reduce electrical hazards on <br /> construction sites. Tripping of GFCIs - interruption of current Flow - <br /> is sometimes caused by wet connectors and tools. It is good practice to <br /> limit exposure of connectors and tools to excessive moisture by using <br /> watertight or sealable connectors. Providing more GF'CIs or shorter <br /> circuits can prevent tripping caused by the cumulative leakage from <br /> several tools or by leakages from extremely long circuits. (Adapted <br /> from OSHA 3007; Ground-Fault protection on Construction sites, 1987.) <br /> 9.8 Fire Prevention <br /> During equipment operation, periodic vapor concentration measurements <br /> should be taken with an explosimeter or combustimeter. If at any time <br /> the vapor concentrations exceed 20% of LEL, then the Site Safety <br /> Officer or designated field worker should immediately shut down all <br /> operations. <br /> Only Factory Mutual (FM) approved fire safety cans will be used to <br /> transport and store flammable liquids. All gasoline and diesel-driven <br /> engines requiring refueling must be shut down and allowed to cool <br /> before filling. Smoking is not allowed during any operations within <br /> the work area in which petroleum products or solvents in free-floating, <br /> dissolved or vapor forms, or other flammable liquids may be present. <br /> No open flame or spark is allowed in any area containing petroleum <br /> products, or other flammable liquids. <br /> 9.9 General health <br /> Medicine and alcohol can increase the effects of exposure to toxic <br /> chemicals. Unless specifically approved by a qualified physician, <br /> prescription drugs should not be taken by personnel assigned to <br /> operations where the potential for absorption, inhalation, or ingestion <br /> of toxic substances exists. <br /> Drinking alcoholic beverages is prohibited. Drinking alcoholic <br /> beverages and driving is prohibited at any time. Driving at excessive <br /> speeds is always prohibited. <br /> Skin abrasions must be thoroughly protected to prevent chamir,,als from <br /> penetrating the abrasion. It is recommended that Contact Lenses not be <br /> worn by persons working on the site. <br /> ...Info3cmation...... ,. ... _........ . <br /> Material Safety Data Sheets (MSDS) on chemical substances encountered <br /> at the site shall be made available to all persons (including <br /> subcontractors) working at the site. These MSDSs shall be enclosed <br /> 23 <br />