ELECTRICAL WORKSHOP PRACTICE AND TECHNOLOGY (CTE 112) Module 1

Practice flashcards covering definitions and concepts from the Electrical Workshop Practice and Technology Module 1 lecture notes.

Electrical Hazards

Workplace hazards that expose workers to burns, electrocution, shock, arc flash/arc blast, fire, or explosion.

Electrical Safety

A set of guidelines personnel follow to mitigate electrical hazards and prevent dangerous effects in the case of an incident.

Electricity

The flow of electric charge that provides energy or power used to run electrical and electronic appliances.

Electric current

The rate of flow of charges, which is rated in $Amps$.

Electric circuit

The closed path provided for the flow of Electric charges.

Electric shock

A condition that occurs when part of the body becomes part of the electric circuit, where severity depends on the path, amount of current, and duration of time.

Qualified electrical person

An individual with the knowledge, skills, and experience to safely perform electrical work and who holds a valid license or certification.

Electrical safety equipment

Tools and devices used to protect individuals from hazards and ensure safe operation, such as electrical gloves, mats, voltage detectors, and circuit testers.

Personal Protective Equipment (PPE)

Any type of clothing or equipment worn to protect the wearer from workplace hazards, including items like hard hats, safety glasses, and rubber gloves.

Lock-out device

A safety device, such as a padlock or hasp, used to prevent the unintended start-up or activation of machinery or equipment during servicing.

Class B fire extinguisher

A type of extinguisher designed for fires involving flammable liquids like gasoline or oil, using foam, $CO_2$, or dry chemicals to interrupt the chemical reaction.

Class C fire extinguisher

An extinguisher designed for fires involving energized electrical equipment, commonly using $CO_2$ because it does not conduct electricity.

Fuse

An electrical safety device consisting of a thin strip of conductive metal connected in series that protects circuits and equipment from excessive current.

Dual element cartridge fuse

An electrical fuse consisting of two elements in parallel designed to protect against both overload and short circuit conditions.

Circuit breaker

A device designed to interrupt the flow of electricity in an electrical circuit when it becomes overloaded to protect devices from damage.

Molded case circuit breaker (MCCB)

An electrical protection device that automatically detects and interrupts current when it exceeds a predetermined level, used in residential and industrial systems.