Questions and Answers
What is the most common wiring method for QA sockets and termination pins?
Why is copper preferred for connecting wires?
What wire gauge should be used for 50mil centers or smaller to prevent crowding?
What is the minimum strip length recommended for a successful wire wrap?
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What should be avoided for wires wrapped on 50mil centers?
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What characteristic of copper determines its efficiency in carrying electric current?
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What is the purpose of a connecting wire in an electrical circuit?
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Which of the following should be done first when connecting wires?
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What issue can arise from connecting wires with high resistance?
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What determines the starting point of wire wraps during the connection process?
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Study Notes
Wire Connection Methods
- Various wiring options are available for connecting fixtures, including wire wrapping, soldering, crimping, wire grip sleeves, wire plugs, and wire jacks.
- QA Technology highlights wire wrapping as the preferred method for QA sockets and termination pins.
Wire Wrapping Technique
- For 75 mil and larger centers, utilize 28 AWG solid wire; for 50 mil and smaller centers, use 30 AWG solid wire to avoid crowding.
- Modified wraps are not suitable for 50 mil centers.
- For wire wrap pins longer than 0.250 inches (6.35 mm), multiple wraps may be necessary.
Connecting Wires
- Connecting wires facilitate the transport of electric current with minimal resistivity; ideal resistance is near zero.
- Copper wires are optimal due to their low resistance, excellent conductivity, and cost-effectiveness.
Characteristics of Copper
- Copper is a metallic element exhibiting properties such as sonority, ductility, malleability, and superior conductivity.
- It provides a good contact surface and can carry higher electric currents compared to other metal wires of the same diameter.
Steps in Connecting Wires
- Step 1: Cut and strip one end of the wire; the minimum strip length is 0.625 inches for six to seven standard wire wrap turns.
- Step 2: Insert the stripped wire into the smaller hole until the insulation meets the tool's face.
- Step 3: Align the larger hole with the pin and slide the tool to the desired wrap location.
- Step 4: Firmly hold the insulated end and apply gentle downward pressure while pulling the tool trigger; avoid excessive force and ensure the tool remains on the pin until wrapping is done.
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Description
Explore the various methods of connecting wires, including wire wrapping, soldering, and crimping. This quiz delves into the specifics of wire sizes, optimal materials, and characteristics of copper for effective electrical connections. Test your knowledge on the best practices for wiring fixtures.
