By Thaddeus W. Fowler, Karen K. Miles
This handbook describes the risks of electric paintings and uncomplicated methods to operating correctly. It info talents that can assist you realize, evaluation and keep watch over electric dangers.
Read Online or Download Electrical Safety: Safety and Health For Electrical Trades. Student Manual PDF
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Extra info for Electrical Safety: Safety and Health For Electrical Trades. Student Manual
Example text
Overload hazards ❚ overload—too much current in a circuit ❚ An overload can lead to a fire or electrical shock. Page 28 Overloads in an electrical system are hazardous because they can produce heat or arcing. Wires and other components in an electrical system or circuit have a maximum amount of current they can carry safely. If too many devices are plugged into a circuit, the electrical current will heat the wires to a very high temperature. If any one tool uses too Overloads are a major cause much current, the wires will heat up.
This cover cannot be removed without special tools. ) cannot get inside and damage the circuit. Control hazards of exposure to live electrical wires: use proper insulation Insulation is made of material that does not conduct electricity (usually plastic, rubber, or fiber). Insulation covers wires and prevents Page 44 Section 7 HAZARDS: SAFE WORK ENVIRONMENT conductors from coming in contact with each other or any other conductor. If conductors are allowed to make contact, a short circuit is created.
Extension cords come with insulation in a variety of types and colors. The insulation of extension cords is especially important. Since extension cords often receive rough handling, the insulation can be damaged. Extension cords might be used in wet places, so adequate insulation is necessary to prevent shocks. Because extension cords are often used near combustible materials (such as wood shavings and sawdust) a short in an extension cord could easily cause arcing and a fire. Arc-fault circuit breaker.