Packet 2 Foundations Tools

Transcription

1 Electrical & Refrigeration Engineering Electricity, Electronics, HVAC and Refrigeration Aberdeen High School Course Syllabus First Year Students Developed by Chuck Veloni 2014 Packet 2 Foundations Tools 1.) Tool Box Check Out /5 2.) Book Work a.) EL1.12 Electrical Test Equipment b.) EL2.4 Conduit Bending /2 3.) Videos a.) Conduit Bending - b.) Copper Tube Bending ) Work Sheets a.) N/A 5.) Labs a.) Using a Meter b.) Tool Names/Proper Usage c.) Conduit Bending /2 d.) Copper Tube Bending Total /15 Total for Packet 2 15 pts

2 Related Bookwork & Worksheets: Electrical Level One Training Guide (NCCER) ISBN # Electrical Test Equipment Read pages 12.1 through 12.12, do questions 1 through 10 on page Electrical Level Two Training Guide (NCCER) ISBN # X Conduit Bending Read pages 4.1 through 4.39, do questions 1 through 15 on page 4.40 Videos a.) Oxy Acetelyne Tanks - What did you learn? b.) Conduit Bending - What did you learn? c.) Copper Tube Bending - What did you learn? Lab A: Using a Meter 1 Pt Objective: To be able to correctly use a Volt-Ohm Meter in a safe manner while getting accurate readings for safety and troubleshooting Overview: Students will use a VOM (Volt-Ohm Meter) to test ten resistors, four battery packs, two capacitors, 22 outlets, 8 disconnect boxes & 3 circuits on the display board Tools: Volt-Ohm Meter Safety: You will be working with live voltage. You can get shocked if you act in a careless manner. YOU WILL WEAR SAFETY GLASSES AT ALL TIMES!!! Procedures: First you can start at any point, but you must make sure that you have your VOM at the correct setting at all times. Failure to do this could result in one or all of the following; damage to the meter, damage to the component, injury or death to yourself or others. For resistors set the meter at the lowest setting in ohms (this looks like a horse shoe) and work you way up to get the most accurate reading. The reason that you start low is to find potential shorts. For capacitors start at the highest ohm setting and watch for the meter to climb or drop in value. For fuses, make sure that there is continuity through the fuses. For batteries set the meter at the highest DC Voltage reading and work your way

3 downward to get the most accurate reading. For outlets and disconnect boxes set the meter at the highest AC Voltage reading and work your way downward to get the most accurate reading. The reason that you are setting the meter at the highest voltage setting for both AC & DC is for safety purposes. If set too low, you can actually get a false reading of 0 volts while having a value much higher than your setting. AT THIS POINT, HAVE THE INSTRUCTOR INSPECT YOUR WORK! Restate the procedures in your own words: Resistors; Ohms a.) b.) c.) d.) e.) f.) g.) h.) i.) j.) Battery Packs; Voltage Direct Current 1.) 2.) Fuses; Good or Bad? 3.) 4.) Capacitors; Good or Bad? 5.) 6.) Outlets; Voltage Alternating Current 1D4-17 1D5-2 1D5-4 1D5-6 1D5-8 1D5-43 1D5-44 1D5-45 1D5-46 1D5-47 1D5-48 1D5-49 1D5-50 1D5-51

4 1D5-53 1D5-55 Disconnect Boxes; Alternating Current L1 to G L2 to G L3 to G L1/L2 L1/L3 L2/L3 Box # 4 Box # 5 Box # 6 Box # 8 Box # 9 Display Board: Current/Amps Circuit #1 Circuit #2 Circuit #3 Lab B: Tools 1 pt Objective: To be able to correctly demonstrate proper application of various hand tools Overview: Students will give the instructor a brief demonstration of various hand tools found in the industry. Student will be required to give an oral interpretation of how each tool works and in which situation that you would use each tool. Tools: See list below Safety: You will be working with sharp tools. YOU WILL WEAR SAFETY GLASSES AT ALL TIMES!!! Related Bookwork: None ID Proper Use Tubing Cutter Swaging Tool Flaring Tool Adjustable Wrench Phillips Screwdriver Flathead Screwdriver Allen Wrench Measuring Tape Valve Wrench Vacuum Pump Recovery System Digital VOM Analog VOM Needle Nose Pliers

5 Bull Nose Pliers Crimping Tool Nut Driver Digital Thermometer Hammer Conduit Bender Lab C: Bending EMT Conduit 2 pts Objective: To be able to correctly Bend EMT (Electrical Metallic Tubing) Overview: Students will bend a 90 degree stub up, an offset, a three point saddle bend and a four point saddle bend over a run that the instructor has previously laid out. Tools: Tubing Cutter, Hack Saw, Conduit Bender Safety: You will be working with sharp tools. YOU WILL WEAR SAFETY GLASSES AT ALL TIMES!!! Related Bookwork: Electrical Level One Training Guide (NCCER) ISBN # Read pages 7.1 through 7.19, do questions 1 through 10 on page 7.20 BENDING CONDUIT / TUBING USING HAND BENDERS Pamphlet written by Bill Bamford, Electrical Instructor at Albany Technical College Procedure Students will make a four point saddle bend over a 2X4 that is mounted on the wall. Students will need to match existing conduit that is already in place. Students will use the chart on the last page of Bill Bamford s Bending Conduit/Tubing Using Hand Benders pamphlet.

6 Lab D: Copper Tube Cutting, Swaging, Flaring & Bending 1 pt Objective: To be able to correctly cut a piece of copper tubing Overview: Students will measure out 21 ¼ inches of 3/8 inch copper tubing. Students will then roll copper tubing on the ground to smooth it out. Students will then cut 5 separate pieces with each piece measuring 4¼ inches. Tools: Tubing cutter, Tape Measure Safety: You will be working with sharp tools. YOU WILL WEAR SAFETY GLASSES AT ALL TIMES!!! Diagram(s): Procedure 1: First you will measure out 21 ¼ inches of3/8 inch copper tubing. You will then roll it on the floor with your feet to smooth out the tubing. After that you need to measure out five separate pieces to cut. Each piece needs to be 4 ¼ inches. Cut each piece on the mark. AT THIS POINT, HAVE THE INSTRUCTOR INSPECT YOUR WORK! 4 1/4 inches Procedure 2: First you will take four of the five pieces that you previously cut. You will then place the copper tubing in the swaging block. The copper tubing must rise above the face of the swaging block 3/8 inch. You will then use the needle nose pliers to hone out the tubing. You will then place the swaging tool into the tubing. With A LIGHT TOUCH, Hammer the swaging tool until it stops against the block. If the tool gets stuck, remove it with an adjustable wrench. AT THIS POINT, HAVE THE INSTRUCTOR INSPECT YOUR WORK! 1/4 inch 4 1/4 inches Procedure 3: First you will take two of the five pieces that you previously cut (one with a swag and one without a swag). You will then place the copper tubing in the swaging block. The copper tubing must rise above the face of the swaging block the thickness of a nickel. You will then use the needle nose pliers to

7 hone out the tubing. You will then place the flaring tool into the tubing. Turn the flaring tool until it stops against the block. If the tool gets stuck, remove it with an adjustable wrench. AT THIS POINT, HAVE THE INSTRUCTOR INSPECT YOUR WORK! 4 1/4 inches Procedure 4: First you will cut four pieces of 3/8 inch copper tubing. You will then measure the copper tubing to find the middle of each piece and mark it. Depending on which end of the tubing that you measure from, you need to line up the mark with either the L mark (if you measure from the left) or the R mark (if you measure from the right). You will line up the copper tubing so that the O mark on the form lines up with the O mark on the form wheel. You will then rotate the bender so that the starting mark lines up with the 90 degree mark. You will then use the needle nose pliers to hone out the tubing. You will then swag one end of the tubing. AT THIS POINT, HAVE THE INSTRUCTOR INSPECT YOUR WORK! 6 1/4 inches 6 1/4 inches

8 Restate the procedures in your own words: Student Notes: Instructor s Signature & Date: Competencies: H.S Math Standards A.1.1.A, A1.1.B, A.1.2.A, A.1.2.F, A.1.3.B, A.1.4.A, A.2.1.E, G.3.C, G.3.D, G.3.E, College Readiness Math Standards 1.1, 1.2, 1.3, 3.1, 3.2, 5.4 Science 9-12 SYSA, 9-12 SYSC, 9-12 SYSD, 9-12 INQB, 9-12 INQC, 9-12 APPD, 9-11 PSIA, 9-11 PSID, 9-11 PSIE, 9-11 PSIG, 9-11 PS2G, 9-11 PS2K, 9-11 PS3A, 9-11 PS3B, 9-11 PS3D, 9-11 PS3E, Reading 1.2.2, 1.3.2, Writing 1.1.1, 1.3.1, 1.6.3, 2.3.1, 3.3.1, AHRI , , , , , , Applicable NEC Codes 210, , , , 240, 240.4, 440, 440.3, , 500.5, 500.6, 505.5, , 626, , 701, 701.2, 702, 702.2, A, C, O, R

9 Reflection on what you feel that you ve learned. Hint: the more you write, the higher your grade. You will be graded on handwriting, content and insight of what you ve learned.