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If you install or support copper-cable-based networks or devices, the right tool can save time and make sure things get done right the first time. The tool you need depends on the jobs you expect to perform:
As a result, it’s important to know the distinction between the different cable test categories and instrument functionalities so you can choose the tester that truly performs the tasks needed.
A GUIDE TO SELECTING A COPPER TESTER

Maintenance professionals tasked with maintaining electric motor reliability are often concerned with testing their critical motors at voltages well above nameplate levels. It can certainly feel counterintuitive to test a 460V motor to 2,000V or a 4,160V motor to 9,320V. After all, the motor is only rated for this lower voltage, right?