electrical installation handtools.pptx

tools

1. VO C ABU L AR Y W O RDS Electrical - relating to electricity Hand Tools – is anything that is held in the hand or hands to assist a person in doing manual work. Equipment – any machine powered by electricity or for protection Materials – consumable T o o l k it - a sm a ll b a g o r b o x equi p ped with hand tools.

2. VO C ABU L AR Y W O RDS Splicing – connecting two lengths of conductor, to join ropes or wires by weaving or twisting them together. Stripping – removing the insulation of connecting wires.

3. Electrical tasks can be accomplished systematically to save time, effort, and Resources. Most of the work cannot be done using bare hands. To do the task, electrical tools or equipment are needed to perform the job. This lesson will discuss the function/use of each tool or equipment used in electrical wiring installations.

4. Basic Electrical Hand Tools and Equipment A. Driving Tools Screwdrivers – These are used to loosen or tighten screws with slotted heads and come in various sizes and shapes.

5. Types of Screwdriver Standard/Flat Screwdriver- The blade tip is wedge shaped and resembles a negative (- sig n. Th i s i s u s ed t o dr i v e sc r ews with a single slot head.

6. Types of Screwdriver Philips Screwdriver- This has a cross tip resembling a positive (+) sign. This is used to drive screws with cross slot heads.

7. Types of Screwdriver Stubby Screwdriver This comes in either standard or Philips screwdriver with short shank or blade and a shorted handle used to turn screws in tight spaces where a standard screwdriver cannot used.

8. Types of Screwdriver Allen Screwdriver/Wrench- This could be in the shape of screw driver or a wrench, its function is to drive a screw with hexagonal slot head.

9. B. Striking Tools Hammers - These are tools used in driving or pounding and pulling out nails. They are made of hard steel plastic, or rubber.

10. B. Striking Tools Types of Hammer Claw Hammer Mallet (Rubber Head) Ballpeen Hammer

11. C. Splicing / Gripping / Holding Tools Pliers - These tools are made from metal with insulators in the handle and are used for cutting, twisting, bending, holding, and gripping wires and cables.

12. Combination Pliers (Linesman’s Pliers) - This is used for gripping, holding, and cutting electrical wires and cables and even small nails. They are usually used by linemen in doing heavy tasks.

13. Side Cutting Pliers - This type of pliers is used for cutting fine, medium, and big and cable.

14. Long Nose Pliers - This is used for cutting and holding fine wires. This can reach spaces or small openings where other pliers cannot reach and is also used in making terminal loops of copper wires.

15. Wire Stripper - This is a tool used for stripping or removing the insulation of connecting wires ranging from gauge #10 to gauge #16.

16. CRIMPER This is used to crimp the terminals into the edge of the conductor for easy attachment of the conductor to the terminal logs.

17. CONDUIT BENDER For installation of conduit or electrical tubing with some bends to be applied, a conduit bender is used to make bends to prevent deformities in conduit. There are two types of hand-operated benders: (1) hickey and (2) hand benders or one-shot benders. These two (2) types of bender are usually made in iron and some hand-held benders are offered in aluminum.

18. D. Cutting Tools Electrician’s Knife - This is used by linemen to remove insulation of wire and cables in low and high voltage transmission lines.

19. Hacksaw - This tool is used for cutting pipes/conduit and cables. It is also used for cutting big conductors.

20. PVC CUTTER This tool is used for cutting PVC Pipes. It is operated simply like you are using a scissor, by ratcheting its handle it force the blade to cut the pipe.

21. Activity Direction: Classify the following electrical tools and equipment according to their specification, uses and function. Ex. Screwdriver - Driving Tool Claw Hammer Electrician’s Knife Combination Pliers Allen Wrench Wire Stripper

22. Activity Direction: Classify the following electrical tools and equipment according to their specification, uses and function. Ex. Screwdriver - Driving Tool Claw Hammer Electrician’s Knife Combination Pliers Allen Wrench Wire Stripper

23. Activity Answer Key: Claw Hammer – Striking Tool Electrician’s Knife – Cutting Tool Combination Pliers – Splicing, Cutting, Gripping Tool Allen Wrench – Driving Tool Wire Stripper – Splicing and Cutting Tool

24. Q u iz Direction: Identify the following electrical hand tools. Choose your answer from the given option and write it at the back of your big notebook.

25. 1. 2 . 3 . 4. 5 . Choices: Flat Screwdriver, Philips Screwdriver, Long Nose Pliers, Hacksaw, Wire Stripper