Title: Lab 2-2: Wire Stripping Lab - 1 Hour
Course: Basic Electrical Theory and Wiring (Sandbox) > Section: Module 2: Wiring

Introduction

In this lab, you will be required to strip and connect wires. Watch the following videos to learn how to perform these tasks.

Wire Stripping

Wire Connections

Lab setup

There are different types of trainers.  You may have one of the following:

1. Breadboard trainer
2. Wall Mount Trainer
3. Training Cart

Note the wiring of the different boxes.

1. Breadboard wiring (Wago) -  Note the following:
  1. 120V Hot wires into 110V (Black Wire).
  2. 120V Neutral wires into N (White Wire).
  3. 24V Leg 1 wires into 3 amp circuit breaker (Black Wire).
  4. 12V wires into ground lug of circuit breaker box (White Wire).  (Note this is the center tap of the transformer).
  5. 0V Leg 2 wires into 3 amp circuit breaker (Red Wire).
  6. Leg 1 from circuit breaker wires into 1st lug on circuit breaker box (Black Wire).
  7. Leg 2 from circuit breaker wires into the 2nd lug on the circuit breaker box (Red Wire).
2. Wall mount Circuit Breaker Box - Black Transformer - Note the following:
  1. Leg 1 wire from transformer wires into the 3 amp circuit breaker (Blue Wire).
  2. Leg 2 wire from transformer wires into the 3 amp circuit breaker (Red Wire).
  3. Neutral wire from transformer wires to ground lug of circuit breaker box (Brown Wire).  (Note this is the center tap of the transformer).
  4. Leg 1 from circuit breaker wires into 1st lug on circuit breaker box (Blue Wire).
  5. Leg 2 from circuit breaker wires into the 2nd lug on the circuit breaker box (Red Wire).
3. Cart circuit Breaker Box - Note the following:
  1. Neutral wire from green ground terminal block to ground lug of circuit breaker box (Brown Wire).  (Note this is the center tap of the transformer).
  2. Leg 1 from Black terminal block (12 VAC #2) wires into the 2nd lug on the circuit breaker box (Blue Wire).
  3. Leg 2 from Red terminal block (12VAC #1) wires into the 2nd lug on the circuit breaker box (Red Wire).

Instructions

Getting Ready

- Follow the guidelines on the Lab Expectations page.
- Legibly write your name on a small piece of paper.
- Strip and connect each wire.
- Take a photo showing that the wire is properly connected, and include it in your submission.
- After connecting or landing a wire, always perform a pull test. If you can pull it out, it will come out during operation.

Cutting and Stripping the Colored Wires

1. Cut and strip an 18 AWG green wire, and properly connect it to the ground bar in the circuit breaker box.
  1. Make sure that the stripped length is correct and that no bare copper is showing.
2. Cut and strip an 18 AWG white wire, and properly connect it to the ground bar in the circuit breaker box.
  1. Make sure that the stripped length is correct and that no bare copper is showing.
3. Cut and strip an 18 AWG black wire, and properly connect it to a circuit breaker.
  1. Make sure that the stripped length is correct and that no bare copper is showing.
  2. Do not make a hook for the circuit breaker.
  3. The wire should be inserted below the screw, in between the two clamping surfaces.
4. Cut and strip an 18 AWG red wire and properly connect it to a receptacle (pronounced re CEP tacle) or outlet.
  1. Make sure to make a hook around the screw.
  2. Make sure that the insulation is not being pinched or under the screw.
  3. Make sure that the stripped length is correct such that the bare copper is very minimal.
5. Cut and strip a 22 AWG brown wire, and properly connect it to the + terminal of the 24 VDC supply.
  1. Make sure that the stripped length is correct and that no bare copper is showing.
6. Cut and strip a 22 AWG blue wire, and properly connect it to the - terminal of the 24 VDC supply.
  1. Make sure that the stripped length is correct and that no bare copper is showing.

Stripping Romex Wires

1. Strip off the end of the 14/2 Romex wire. Cut back the white sheath about 2", and then strip the black and white wires about 1/2". When complete, cut off your section of the cable about 1" below the white sheath.
2. Strip off the end of the 14/3 Romex wire. Cut back the white sheath about 2", and then strip the black, white, and red wires about 1/2". When complete, cut off your section of the cable wire about 1" below the white sheath.
3. Strip off the end of the 12/2 Romex wire. Cut back the yellow sheath about 2", and then strip the black and white wires about 1/2". When complete, cut off your section of the cable about 1" below the yellow sheath.
4. Strip off the end of the 10/3 Romex wire. Cut back the orange sheath about 2", and then strip the black, white, and red wires about 1/2". When complete, cut off your section of the cable about 1" below the orange sheath.

 | Remember! |
You will need to take a picture of each wire after it has been connected and include it in your submission.

When taking pictures, make sure that the paper with your name is visible in all photos.

Materials

ID | Item | Image | Qty for Kit | In Kit 2290039
1 | Circuit Breaker Box (Note: Ours doesn't have the cover.) |  | 1 |
9 | 15-Amp, Single-Pole Circuit Breaker |  | 1 |
5 | 15-Amp, 125 V Receptacle (Outlet) |  | 2 |
15 | 4-in-1 Screwdriver |  | 1 |
16 | 3 mm x 100 mm Screwdriver |  | 1 |
17 | Wire Strippers |  | 1 |
22 | 24 VDC Power Supply |  | 1 |
45 | Romex 14/2 |  | 25 Feet |
46 | Romex 14/3 |  | 25 Feet |
47 | Romex 12/2 |  | 25 Feet |
48 | Romex 10/3 |  | 25 Feet |
49 | 18 AWG Black Wire |  | 250 Feet |
50 | 18 AWG Red Wire |  | 250 Feet |
51 | 18 AWG White Wire |  | 250 Feet |
52 | 18 AWG Green Wire |  | 250 Feet |
53 | 22 AWG Blue Wire |  | 250 Feet |
54 | 22 AWG Brown Wire |  | 250 Feet |

Submission

What to Submit

Submit a photo per the rubric below. Make sure that your name is in every photo.

How to Submit

Click here for step-by-step instructions on how to submit photo submissions.

Unless specified otherwise, any and all work on this page is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.