Chapter 1 Safety

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Across
  1. 4. — a document that establishes minimum safety rules for an electrician to follow when performing electrical installations; it is published by the National Fire Protection Association (NFPA)
  2. 17. — since 1971, OSHA’s job has been to establish and enforce workplace safety rules
  3. 18. — an arrangement consisting of a power source, conductors, and a load
  4. 19. — the unit of measure for voltage
  5. 20. — a violent electrical condition that causes molten metal to be thrown through the air
  6. 21. — the unit of measure for electrical resistance
  7. 22. — a term used in the National Electrical Code® that means that the rule must be followed
  8. 23. — a dangerous condition associated with the possible release of energy caused by an electric arc
  9. 24. — the flow of a high amount of current across an insulating medium, like air
  10. 25. — an electrical tool that is constructed so the case is isolated from electrical energy and is made of a nonconductive material
  11. 26. — the force that causes electrons to move from atom to atom in a conductor
  12. 27. — an electrical connection to an object that conducts electrical current to the earth
  13. 28. — a two-prong plug that distinguishes between the grounded conductor and the “hot” conductor by having the grounded conductor prong wider than the “hot” conductor prong; this plug will fit into a receptacle only one way
Down
  1. 1. — a form that lists and explains each of the hazardous materials that electricians may work with so they can safely use the material and respond to an emergency situation
  2. 2. — the mathematical relationship between current, voltage, and resistance in an electrical circuit
  3. 3. — a device that protects people from dangerous levels of electrical current by measuring the current difference between two conductors of an electrical circuit and tripping to an open position if the measured value exceeds approximately 5 milliamperes
  4. 5. — the opposition to current flow
  5. 6. — a material that does not allow electrical current to flow through it; examples are rubber, plastic, and glass
  6. 7. — the intensity of electron flow in a conductor
  7. 8. — the unit of measure for electrical current flow
  8. 9. — the sudden stimulation of nerves and muscle caused by electricity flowing through the body
  9. 10. — equipment for the eyes, face, head, and extremities; protective clothing; respiratory devices; protective shields and barriers
  10. 11. — very rapid irregular contractions of the heart that result in the heartbeat and pulse going out of rhythm with each other
  11. 12. — a material that allows electrical current to flow through it; examples are copper, aluminum, and silver
  12. 13. — a part of an electrical circuit that uses electrical current to perform some function; an example would be a lightbulb (produces light) or electric motor (produces mechanical energy)
  13. 14. — also referred to as staging; a piece of equipment that provides a platform for working in high places; the parts are put together at the job site and then taken apart and reconstructed when needed at another location
  14. 15. — a potential source of danger
  15. 16. — a part of an electrical circuit that produces the voltage required by the circuit