C. Cables

1. Properties and Types

Identify properties, types, and applications ^{2, 3, 4}

• Wire Wisdom Providing answers to some of the most frequently asked electrical and electronic wire and cable technical questions.
• Okonite Technical Reference Center and Guides
• Wire and Cable Marking Guide ²
• Percent Insulation Level ³
• Wire Temperature Ratings and Terminations

Identify properties, types, and applications of accessories ^{2, 3, 4}

• Dead Break Elbows v Load Break Elbows
• 200A Loadbreak Elbows
• Maximum size conductor for 200A load break elbow

2. Inspection and Test Procedures

Apply visual and mechanical inspections ^{2, 3, 4}

• The Reorganization of NEC Article 310
• NFPA 70 2020: Article 311 Medium Voltage Cable Type MV ^{2, 3, 4}
• NFPA 70: Wiring Methods and Materials
• Bending Radii and Pulling Tensions
• Electrical treeing

Employ methods and procedures for electrical tests ^{2, 3, 4}

• Power Cable Testing and Diagnostics Overview
• Low Voltage Cable Testing and Inspection Techniques
• General Guidelines for Online Partial Discharge Testing of Power Cables
• Best practices for offline diagnosis of MV cables
• Assessing Service-Aged, Medium-Voltage Power Cables
• Power factor testing of cables and potheads

Demonstrate knowledge of cable fault locating ^{2, 3, 4}

• Fault location on power cables
• Cable test and fault location equipment
• TDR basic operation guide
• Using a TDR to find cable faults without applying a high voltage
• Sheath testing for fault location

3. Interpretation of Test Results

Evaluate results of electrical tests ^{2, 3, 4}

Important Cable Testing Standards

• NETA-ATS 2017: Section 7.3 Cables ^2 3 4
• NETA-MTS 2019: Section 7.3 Cables ^2 3 4
• NFPA 70B: Chapter 11.21 Cables ^2 3 4
• IEEE 400 Guide for Field Testing and Evaluation of the Insulation of Shielded Power Cable Systems Rated 5 kV and Above ³
• IEEE 400.2 Guide for Field Testing of Shielded Power Cable Systems Using Very Low Frequency (VLF)(less than 1 Hz) ³
• Overview of the IEEE 400 Bundle
• IEEE 48 Standard for Test Procedures and Requirements for Alternating-Current Cable Terminations Used on Shielded Cables Having Laminated Insulation Rated 2.5 kV through 765 kV or Extruded Insulation Rated 2.5 kV through 500 kV ⁴

Last Update: Aug 21, 2023