Examkin

Question

Difficulty: MediumElectrical Hand Tools

An electronics technician is attaching an insulated ring lug to a multi-strand copper wire on an equipment harness. Which electrical hand tool is specifically designed to compress the metal terminal barrel securely around the wire strands without cutting the conductor or puncturing the protective nylon sleeve?

  1. A
    Wire stripper sizing notch matching the conductor gauge
  2. Ratcheting terminal crimper with color-coded nesting diesAnswer
  3. C
    Slip-joint pliers with serrated flat jaws
  4. D
    Soldering iron applying core solder directly into the uncompressed barrel

Answer

Ratcheting terminal crimper with color-coded nesting dies
The ratcheting terminal crimper with color-coded nesting dies is engineered specifically for insulated terminations. The ratchet mechanism ensures that full, controlled compressive force is delivered before opening, creating a gas-tight mechanical bond while smoothly contouring around the nylon or vinyl insulation without puncturing it.

Step-by-Step Solution

1
Identify the primary electrical task and safety constraints
The technician needs to mechanically secure an insulated terminal lug to stranded wire while preserving the integrity of the protective insulating jacket.
Insulated terminals require calibrated radial compression rather than sharp shearing or uncalibrated crushing force.
2
Evaluate tool mechanisms for terminal compression
Ratcheting crimpers utilize matched nest-and-indent dies designed to compress the metal barrel to a specified depth and release only after full cycle completion.
This guarantees a gas-tight, low-resistance mechanical bond without pinching or piercing the insulating sleeve.

Key Concept

Proper hand tool selection for insulated wire terminal crimping
Estimated Time:1m 0s
Rate this question

Topics

Electrical Hand Tools

More questions from this topic