Insulation Resistance Testing
Training course length is customizable based on your needs.
Course Overview
Failure of electrical insulation is a leading cause of equipment faults and fires. This one-day seminar covers insulation system construction and degradation, test equipment, methods (spot, DAR, PI), equipment-specific tests, and interpreting results; includes intro to hi-pot and power factor tests.
Background
• Insulation System Construction
• Modes of Degradation
• Ohm’s Law
• Leakage Current
• Polarization Current
Test Equipment
• Hand Crank
• Electronic
• Safety When Performing Testing
Performing Tests
• Selecting Test Voltages
• Spot Readings
• Dielectric Absorption Test
• Polarization Index
Specific Equipment Tests
• Cables
• Buswork
• Transformers
• Circuit Breakers
• Motors
• Motor Starters
• Instrumentation Components
Interpreting Results
• Go-No Go Criteria
• Trending
• DAR Acceptance Bands
• PI Acceptance Bands
Intro to High Potential Tests
• AC Hi Potential Testing
• Power Factor Testing
• Test Safety
• Test Methods
• Analyzing Results