E. Switches

1. Properties and Types

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

• Purpose of Disconnect Switches In HV Substation
• The Purpose of High Voltage Circuit Switchers
• What Is a Load Break Switch?
• Differences between disconnectors, load switches, switch disconnectors and circuit breakers
• The Basics of Switching Devices In Medium Voltage Switchgear

2. Inspection and Test Procedures

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

• NFPA 70 2017: Article 404 Switches ^{2, 3, 4}

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

• NFPA 70B: Chapter 11.15 Switches ^{2, 3, 4}

3. Interpretation of Test Results

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

• NETA-ATS 2017: Section 7.5 Switches ^{2, 3, 4}
• NETA-MTS 2019: Section 7.5 Switches ^{2, 3, 4}

Last Update: Feb 02, 2025