Lesson 1

Prepare Electrical Supplies, Materials, and Tools

LEARNING OUTCOMES: At the end of this Lesson, you are expected to do the following:

  • LO 1. identify electrical supplies, materials, and tools;

  • LO 2. request appropriate supplies, materials, and tools for a specific job; and

  • LO 3. receive and inspect electrical supplies, materials and tools.

DEFINITION OF TERMS

Ampere - a unit of measure of electric current

Circuit - the path of electric current from the source to the components and goes back to the source

Kilowatt - a unit of power which is equivalent to 1000w

Conductor - a wire or a cord which provides path for current flow

Resistance - the quality of electric current measured in ohms that resist the flow of current

Hot wire - a wire through which current flows

Insulator – material used to cover electric wires which may be made from plastic, rubber, or asbestos.

Tools - are implements used to modify raw materials for human use

Corrugated plastic conduit (CPC) - commonly known as flexible non-metallic conduit or the “moldflex”

Metallic Conduits- metal raceways that was classified into four; rigid steel conduit (RSC), intermediate metallic conduit or tubing (IMC or IMT), electrical metallic conduit or tubing (EMC or EMT) and the flexible metallic conduit (FMC)

Non-metallic conduits- plastic conduits or raceways designed to be a channel of wire that are classified as; rigid non-metallic conduit or the PVC, the flexible nonmetallic or CPC, and the surface plastic molding

Connectors and Adapters - accessories that are used to connect from boxes to conduits or raceways to the other boxes in the electrical system