Across
- 4. is a solid strip of conducting material, usually copper, to which electrical equipment can be attached and powered.
- 9. electrical ______: the movement of electrons through a conductor.
- 10. the act of examining the electrical installation.
- 13. also known as an electrical crimp, this is a small metal tube that is placed over the stripped end of a multi strand wire and then crushed using a crimping tool to protect the end of the cable.
- 14. involves connecting the exposed conductive parts of an installation (such as gas and water pipes) to the main earthing terminal of the installation.
- 15. _____circuit: a circuit that has two sets of conductors leaving a distribution board from the same point essentially forming a ring, generally only used for socket circuits.
Down
- 1. is a piece of equipment designed to fit inside a socket as means of connecting an appliance or piece of equipment.
- 2. is made up of one or more conductors and their insulated surrounding
- 3. is the difference in electrical potential between two different points; it can be thought of as electrical pressure.
- 5. is the term used to describe the flow of electrical current.
- 6. is a unit of power and is denoted by use of the letter W.
- 7. is a protective device designed so that when more current is drawn through them than they are designed to take, a part of it melts, causing the circuit to become open and the electricity supply to become disconnected.
- 8. is an assembly of electrical equipment that originates at the same point and is protected by the same device.
- 11. is the electrical unit used for measuring resistance.
- 12. _____ current: the amount of current that the circuit is intended to use in normal use.