AVO - Cable Testing and Diagnostics, Medium-Voltage
- Monday 21 July, 2025 - Friday 25 July, 2025
- 4545 West Davis Street, Dallas, Texas, 75211, USA
Course description and overview
CABLE TESTING & DIAGNOSTICS, MEDIUM-VOLTAGE (CTDMV | #131). 4.5 DAYS | 3.2 CEUs
This comprehensive hands-on preventative maintenance course is intended for engineers, electrical technicians, and supervisors that test, install, maintain, repair or troubleshoot 5-35 kV solid dielectric and paper insulated power cables. Students will perform and analyze results of insulation resistance tests (DAR & PI), type I withstand tests (DC, AC, & VLF). Also, diagnostic test such as Partial Discharge and Tan Delta will be performed. Cable Diagnosis is predictive and is often performed as part of condition-based maintenance strategies. This course focuses on data collection to provide information about the overall condition of the cable. Students will learn the indicators that cable performance is deteriorating, understanding the signs that cable is about to fail and when to perform maintenance.
Learning objectives
To receive 3.2 CEUs, the participant must attend 4.5 days of class (32 contact hours) and attain a minimum average grade of 80% (overall grade will consist of 50% lab and 50% final exam). Upon completion of this course and lab practice, the participant will demonstrate that he/she is able to:
- Identify medium voltage cable components and causes of failure.
- Utilize safe work practices for cable testing per OSHA and industry consensus standards.
- Interpret current industry cable testing standards and procedures.
- Perform and analyze results of:
- Insulation Resistance Tests (DAR and PI).
- Withstand Tests (DC, AC & VLF).
- Diagnostic Field Tests (Tan Delta & PD).
- Outline the benefits gained by establishing a Conditioned Based Cable Maintenance Program.
Venue information
Full details
Late Enrollment Deadlines and Fees
The deadline for enrollment into a virtual class is the last Wednesday before the week of class.The deadline for enrollment into an open enrollment, in-person class is 2 weeks plus a Wednesday before the week of the class. This applies to all locations (including Dallas).
An additional $100 late fee is charged for enrollments after the deadlines above.
Please reach out to your Account Executive or call 877-594-3156 for more information.
Some of the product you will be using
MIT 1025
Megger TDS
Megger Teleflex
Megger VLF SIN 45
Programme / Scope
Day 1* (7 contact hours)
- Introduction (0.5 hours)
- Schedule
- Course Outline
- Introduction To Medium Voltage Cable Testing (1.5 hr)
- Purpose of Power Cables
- Cable Components & Operation
- Cable Insulation
- Types of Tests Performed on Medium Voltage Cables
- General Guidelines for Cable
- Testing Safety
- AM Break
- Cable Testing Standards (2 hr)
- Institute of Electrical and Electronics Engineers (IEEE)
- National Fire Protection Association (NFPA)
- International Electrical Testing Association (NETA)
- Association of Edison Illumination Companies
- Insulated Cable Engineers Association (ICEA)
- American National Standards Institute (ANSI)
- American Society for Testing of Materials (ASTM)
- International Electro-Technical Commission (IEC)
- International Council on Large Electrical Systems (CIGRE)
- Lunch
- Insulation Resistance Testing (IR) (3 hrs)
- Safety Precautions
- Theory of Test
- PM Break
- Evaluating Resistance Measurement
Day 2 (7 contact hours)
- Field Tests (Withstand Tests) (4 hrs)
- Safety Precautions
- Voltage Withstand Tests
- Alternating Current (AC Line Frequency) Withstand Test
- Very Low Frequency (VLF) Withstand Test
- Test Equipment Connections
- Direct Current (DC) Withstand Test
- AM Break
- Current Avalanche
- Other Unusual Currents
- Ionization Control
- Voltage Regulation
- Insulation Resistance
- Testing Intervals and Values
- Lunch
- Field Tests (Withstand Tests) (3 hrs)
- D.A.R., P.I. and I.R. labs
- PM Break
- V.L.F. Withstand testing lab
- D.C. Withstand testing lab
Day 3 (7 contact hours)
- Field Tests (Diagnostics Tests) (7 hours)
- Dissipation Factor Testing
- Analyzing Tan Delta Test Results
- AM Break
- Test Area Safety
- Interpreting Test Data
- Technical Analysis
- Lunch
- PD Test Equipment Set-Up
- Interpreting Test Data
- PM Break
- Other Cable Tests
- Shield Testing
Day 4 (7 contact hours)
- Testing Labs (7 hours)
- VLF Tan Delta lab
- AM Break
- VLF Tan Delta lab (cont'd)
- Lunch
- Partial Discharge lab
- PM Break
- Partial Discharge lab (cont'd)
Day 5 (half day) (4 contact hours)
- Condition Based Maintenance of Medium Voltage Cables
“Notes from Underground” (3 hrs)- AM Break
- Conclusion (1 hr)
- Review
- Final Test
*Class scheduling times may vary based on discussions and size of class
