Different tests answer different questions
A withstand test checks whether insulation survives a specified test stress. Diagnostic measurements such as tan delta and partial discharge can provide information about deterioration and localized defects. These methods are complementary rather than interchangeable.
Cable construction matters
The cable insulation type, age, length and accessory configuration affect method selection. Test voltages and durations must be chosen using applicable guidance and manufacturer recommendations, not a universal setting.
Turn measurements into a maintenance plan
Interpret results alongside installation records, previous measurements and service history. Qualified engineers should evaluate limitations before deciding whether repair, additional investigation or continued monitoring is appropriate.
Connect knowledge with the right solution
Discuss the asset, operating history and testing objectives with an engineer before selecting a test scope or instrument.
