Wiring Techniques
Course No: E03-007
Credit: 3 PDH
A. Bhatia
Continuing Education and Development, Inc.
9 Greyridge Farm Court
Stony Point, NY 10980
P: (877) 322-5800
F: (877) 322-4774 info@cedengineering.com CHAPTER 2
WIRING TECHNIQUES
LEARNING OBJECTIVES
Upon completing this chapter, you should be able to:
1. State the basic requirements for any splice and terminal connection, including the preferred wirestripping method.
2. State the reason the ends of the wire are clamped down after a Western Union splice has been made. 3. Explain the major advantage of the crimped terminal over the soldered terminal.
4. Name the two types of insulation commonly used for noninsulated splices and terminal lugs.
5. State an advantage of using
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Continue to release pressure until the gripper jaws release the stripped wire, then remove.
Knife Stripping
A sharp knife may be used to strip the insulation from a conductor. The procedure is much the same as for sharpening a pencil. The knife should be held at approximately a 60º angle to the conductor. Use extreme care when cutting through the insulation to avoid nicking or cutting the conductor. This procedure produces a taper on the cut insulation as shown in figure 2-3.
2-3
Figure 2-3.—Knife stripping.
Locally Made Hot-Blade Wire Stripper
If you are required to strip a large number of wires, you can use a locally made hot-blade stripper
(figure 2-4) as follows:
Figure 2-4.—Locally made hot-blade stripper.
1. In the end of a piece of copper strip, cut a sharp-edged "V." At the bottom of the "V," make a wire slot of suitable diameter for the size wire to be stripped.
2. Fasten the copper strip around the heating element of an electric soldering iron as shown in figure 2-4. The iron must be rated at 100 watts or greater in order to transfer enough heat to the copper strip to melt the wire insulation.
3. Lay the wire or cable to be stripped in the "V"; a clean channel will be melted in the insulation.
2-4
4. Remove the insulation with a slight pull.
General Wire-Stripping Instructions
When stripping wire with any of the tools mentioned, observe
Insulation slows the process of heat leaving an object. Most insulation contains lots of air spaces. The air spaces slow the flow of heat leaving the object because the heat takes longer to travel through the air spaces. Insulation is a material or substance that is used to stop heat, electricity, or sound from going into or out of something (Insulation, 2015, pg. 1). Insulation is commonly thought of in
Next, the investigator soldered all of the electrical wires between the components of the device. Once that was done, the spade connectors came into use. With paperclips bent to look like bug antennae, the spade connectors were connected to the paperclips with more heat shrinking tubing. These were then attached to the SPDT switches with glue.
(After noting that electricity passing through a conductor produces a glowing red or white heat, Edison imagined using this light for pratical uses. )
Insulator – Do not allow electric charges to pass through them. Electrons in the atoms and molecules move very slightly to one side of the object but are not released.
Non Conductive: A serious concern with outdoor cables in certain computer networks is they can be hit by lightning, causing destruction to wires and other cables that are involved in the network. Fiber optic cables can be made non-conductive by avoiding metal in their design. These kinds of cables are economical and standard for many indoor applications. Outdoor versions are more expensive since they require the special strength members, but they can still be valuable in eliminating ground loop and protecting electromagnetic equipment from surge damage.
In this Assignment I will demonstrate different connector installations and there usage. I will describe the assembling process and any issues if ran into, along with ways to prevent the same problems from turning up in the future.
Discharge any static to prevent the damage of any of the computer components, you can do this by touching and plug with an earth wire or touching a water tap.
Note: These cables are thin and effortlessly damaged, therefore be sure that you are only stripping off the display assembly and not cut them.
What type of cable is necessary for each connection in Figure 4- 2: straight or crossover? You can assume that S1 and S2 do not have the ability to resolve crossovers ( called Auto- MDIX). Use your textbook and Internet research to compose your answer.
Use some electrical tape to wrap the part of the cable that is damaged. You’ll want to wrap it about an inch above and below the damaged area to make sure that the wire is no longer exposed. The reason this works is because electrical tape is typically made from vinyl, and is designed to insulate the electrical wires it is exposed to. The tape will not melt or catch on fire
Wires and cables have a very high voltage whilst working with them therefore makes it very dangerous working with. Also, you could trip over them if place in a messy manor and eventually ruin and cause electrical issues. They should be placed in a orderly fashion.
wires poking out of the board. The wires are soldered to the terminal legs. If
This were all the materials I used to complete the experiment. First I hold the 2 nails and I wrapped the copper wire on both of them. In one of them I wrap the copper wire 5 times a round the nail and I left a little space in between each loop. Than I decide to coil the wire 15 times around the same nail with almost no space in between them.
The wire needs to be able to withstand extremely high temperatures, so it can be considered a “special need.”
In this phase, there will be blueprints that show all the cable and also the arrangement all the computer to synchronize all the lab. This phase is the plan before the implementation made and the suitable design that suit the lab. It will show the design for the room, the place that the wire will place and also the rack for the switch.