Transcription of Understanding Insulation Resistance Testing
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Understanding Insulation Resistance Testing
Understanding Insulation Resistance Testing (pdf) 02/06 Rev. 02 Technical Assistance (800) 343-13911of 6 Understanding InsulationResistance TestingWhy have an Insulation Testing program?A regular program of Testing Insulation Resistance is stronglyrecommended to prevent electrical shocks, assure safetyof personnel and to reduce or eliminate down time. It helpsto detect deterioration of Insulation in order to schedule repairwork such as: vacuum cleaning, steam cleaning, drying andrewinding. It is also helpful when evaluating the quality of therepairs before the equipment is put back into causes Insulation failure?Some of the more common causes of Insulation failureinclude: excessive heat or cold, moisture, dirt, corrosivevapors, oil, vibration, aging and nicked tests are used to detect Insulation deterioration?
Time-resistance tests on large rotating electrical machinery – especially with high operating voltage – require high insulation resistance ranges and a very constant test voltage. A heavy-duty megohmmeter serves this need. Similarly, ... Understanding Insulation Resistance Testing (pdf) 02/06 Rev. 02 ...
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