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• Nikola Tesla is known as the father of electricity and the creator of alternating current. He also contributed to the development of remote control, neon lighting, robotics, computers, and smartphones
• Thomas Edison created direct current and inventions such as the telephone, telegraph, motion picture camera, incandescent light bulb, and phonograph
• Ampere is the unit of measure of the rate of electron flow in an electrical conductor
• A circuit is the path of electric current from the source to the load and back to the source
• Kilowatt is a unit of power equivalent to 1000 watts
• A conductor is a material, typically a wire or a cord, that allows the flow of electric current
• Resistance is the quality of an electric circuit measured in ohms that resists the flow of current
• An insulator is a material used to cover electric wires to prevent the flow of electricity
• Corrugated plastic conduit is a flexible conduit made of plastic
• Metal conduit is a conduit made of steel, known for its strength and durability
• Screwdrivers:

  • Used to loosen or tighten screws with slotted heads
  • Standard/Flat screwdriver:
  • Blade tip resembles a negative sign
  • Used to drive screws with a single slot head
  • Philips screwdriver:
  • Cross tip resembles a positive sign
  • Used to drive screws with cross slot heads
  • Allen screwdriver:
  • Has a handle
  • Allen wrench:
  • L-shaped and no handle
• Hammers:

  • Used for driving or pounding and pulling out nails
  • Clawhammer:
  • Primarily used in carpentry
  • Used to pull out nails from wood
  • Wooden Mallet Hammer:
  • Used in knocking wooden pieces together
  • Used to drive dowels, chisels, and add pressure on joints
  • Ball-peen Hammer:
  • Also known as machinist's hammer
  • Used in metalworking
• Pliers:

  • Used for cutting, twisting, bending, holding, and gripping wires and cables
  • Combination pliers:
  • Gripping, holding, and cutting electrical wires (linemen)
  • Side Cutting pliers:
  • Cutting fine, medium, and big wires
  • Long nose pliers:
  • Used for narrow spaces that other pliers cannot reach
  • Wire stripper:
  • Removing medium-sized insulation
• Electrician's knife:

  • Used in removing insulation
• Portable electric drill - used to making holes on metal sheets and concrete walls capacity of ¼ to ⅜ Hacksaw - used to cut metal conduit Convenience outlet - it is where male plug inserted and device that acts as convenient source of electrical for appliances Male plug - device inserted to a convenient outlet Lamp holders - used to hold and protect lamp also knows as lamp sockets/ receptacles
• Switch - connects and disconnects the flow of electric current in a circuit.
• Circuit breaker - protective device that automatically blows and cuts the current.
• Fuse - A circuit protective device that automatically blows and cuts the current
• Flat cord - duplex stranded wire used for temporary wiring installation and commonly used in extensions.
• Utility box - rectangular shaped material in which flush type convenience outlets and switches are attached.
• Junction box - an octagonal shaped electrical material where the connections or joints of wire are being done.
• Y-splice - This method of wrapping is used on small cables because the strands are flexible and can be all wrapped in one operation.
• Rat tail or Pig tail - commonly used to join two or more conductors inside the junction box.
• Knotted tap - used where the tap wire is under a heavytensile stress.
• Duplex Cross Joint - a two-tap wire turned simultaneously and used when the two tap wire is under heavy tensile stress.
• Aerial tap - used as temporary tap usually done in construction sites, the easy twist will facilitate tap-wire movement
• Plain tap joint - used where the tap wire is under considerable tensile stress circuit.
• Cross joint - same application is done in plain tap joint but it is a combination of two plain tap joint placed side by side .
• Wrapped tap or Tee joint - used on large solid conductors where its difficult to wrap the heavy tap wire around the main wire
• Western Union Short-tie splice - most widely used splice or joint in interior wiring instillation to extend the length of wire from one point to another.
• Hazard - involves unforeseen incidents that is physically unfavorable to humans or animals
• First aid- includes all forms of remedies given immediately to humans in order to prevent fatalities caused by accidents
• Control - meants to direct or determine
• Accident - event occurring unintentionally or by chance
• Self-discipline - refers to doing things spontaneously without being told or ordered.
• Occupation. - an activity in which one is engaged to.
• Safety - state of being out of danger, uninjured, not involving risk.
• Sanitize - to maintain high standard of house keeping
• Systemize -arrange necessary items in good order for use.
• Symbols - generally printed on the signs which sometimes carry a descriptive word or a few.