How to determine whether the quality of the terminal wire meets the requirements?

To judge whether the quality of the terminal wire meets the requirements, the following aspects can be considered:
Conductor material: Check whether the conductor is a high-quality material such as pure copper, and whether the conductivity is good.
Insulating layer: Observe whether the thickness of the insulating layer is uniform, and whether there are any damages or aging phenomena.
Plugging force: An appropriate plugging force indicates that the terminal wire is connected tightly and stably.

Conducting performance: Use testing tools to detect whether its conducting performance is good.
Appearance workmanship: The surface of the terminal wire should be flat, without stains, and the terminals should be firmly welded without false soldering.
Temperature resistance: Under high-temperature conditions, the terminal wire should not be deformed or damaged.
Tensile strength: It should have a certain tensile strength and not be easily broken.