Portable tools and equipment

Portable tools and equipment 63/1139 Confined spaces 63/1139 Electricity 63/1140... 

Electric shock - from portable tools and equipment... 

Portable electrical hand tools and equipment shall be properly grounded and wound to operate on llOV a.c. center tapped to earth supply, and shall only be connected to the system by permanent joints or proper connections. 

Are all portable electrical tools and equipment supplied at 110 V and identified with an issue tag ... 

All portable electrical tools and equipment must be grounded or of double insulated type. Electrical appliances such as vacuum cleaners, polishers, and vending machines must be grounded. Extension cords being used must have a grounding conductor. Multiple plug adapters are prohibited. Ground-fault circuit interrupters should be installed on each temporary 15- or 20-ampere, 120-volt AC circuit at locations where construction, demolition, modifications, alterations, or excavations are... 

The employer is responsible for the safe condition of all tools and equipment used by employees but the employees have the responsibility for properly using and maintaining such tools. Employers should caution employees that saw blades, knives, or other tools be directed away from aisle areas and other employees working in close proximity. Knives and scissors must be sharp. Dull tools can be more hazardous than sharp ones. Appropriate personal protective equipment (e.g., safety goggles, gloves, etc.) should be worn due to hazards that may be encountered while using portable power tools and hand tools. 

Tools likely to be used in wet and/or conductive locations need not be grounded if supplied through an isolating transformer with an ungrounded secondary of not over 50 volts. Listed or labeled portable tools and appliances protected by a system of double insulation, or its equivalent, need not be grounded. If such a system Is employed, the equipment shall be distinctively marked to indicate that the tool or appliance utilizes a system of double insulation. 

O Are portable electrical tools and equipment grounded or of the double insulated type ... 

Unqualified employees, those that do not work directly with electrical systems, have to be able to recognize electrical hazards, shordd stay clear of barricaded areas when qualified employees are working on electrical systems, and recognize appropriate lockout/tagout implementation. Additionally, they have to ensure that portable tools and extension cords are plugged into ground-fardt circuit interrupters and equipment with flexible cords (i.e., the cords that come with the equipment) are plugged directly into a receptacle. 

For protection against both direct and indirect electric shock, the specified supply system is SELV, but the limit of 25 V a.c. or 60 V d.c. has been dropped. Where a functional earth is needed, for certain instruments for example, it may be utihsed provided all exposed and extraneous conductive parts are bonded together and to the protective conductor. Where there is no need for direct electric shock protection and only indirect is required, section 606-04-0 l(iii) allows mains voltage supplies to fixed equipment within the equipotential zone provided the exposed conductive parts are coimected to the extraneous conductive parts in the location. Alternatively, Class ff equipment may be used provided its enclosure is suitable for the location and it has sensitive RCD protection to trip the circuit at a residual current of 150 mA within 40 ms (or in a time of five times the residual operating current when the current is less than 30 mA). For hand-held equipment, portable tools and hand lamps, for example, there is no relaxation and they have to be supplied at SELV. 

Hand and portable powered tools and equipment, general... 

Hand and Portable Powered Tools and Equipment, General... 

OSHA s 1910.242 regulation on hand and portable power tools applies to all employers who are responsible for the safe condition of tools and equipment used by employees, including tools and equipment that may be furnished by employees. 

Aluminum is used in the home as household foh (0.18 mm thick), cooking utenshs (the first commercial use of aluminum), refrigerators, air conditioners, appHances, insect screening, and hardware. It is also used for toys, sporting equipment, lawn furniture, lawn mowers, and portable tools. In many of these apphcations, anodized or colored coatings are employed for decorative purposes. 

Plant and equipment generally portable tools flexible hoses lifting equipment pressure systems... 

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