ETT Study Guide Book 3: Component Testing
A. Switchgear and Switchboard Assemblies
1. Properties and Types
Identify properties, types, and applications 2, 3, 4
- IEEE C37.20.1 Standard for Metal-Enclosed Low-Voltage (1000 Vac and below, 3200 Vdc and below) Power Circuit Breaker Switchgear 2
- NEMA 250-2014 Enclosures for Electrical Equipment (1000 Volts Maximum) 2
- The Basics of Switchboards
- Rating of Ground Bus in Metal-Enclosed Switchgear
- Metal-Clad Switchgear or Metal-Enclosed Switchgear: Which Is It?
- Improving Safety with Arc-Resistant Switchgear
2. Inspection and Test Procedures
Apply visual and mechanical inspections 2, 3, 4
- NFPA 70: Article 408 Switchboards, Switchgear, and Panelboards 2 3 4
- NFPA 70: Article 110 Requirements for Electrical Installations: Working Space 2 3 4
- NFPA 70B: Chapter 15 Substations and Switchgear Assemblies 2 3 4
- Degradation of Power Contacts in Industrial Atmosphere: Silver Corrosion and Whiskers 3
- IEEE C37.20.6 Standard for 4.76 kV to 38 kV Rated Ground and Test Devices Used in Enclosures 4
- Top Five Switchgear Failure Causes and how to avoid them
- Condensation in Switchgear and Anticondensation Heaters
- Comparison of ANSI/IEEE Requirements for Low-voltage Switchgear
Employ methods and procedures for electrical tests 2, 3, 4
- NFPA 70B: Chapter 11.23 Switchgear and Switchboard Assemblies 2 3 4
- Switchgear and Switchboard Inspection and Testing Guide
- Inspection, Test and Measurement Procedures for LV and MV (up to 36kV) Switchgears
- Why is Continuous On-line Monitoring of Partial Discharge in the Switchgear Necessary?
3. Interpretation of Test Results
Evaluate results of electrical tests 2, 3, 4
- NETA-ATS 2017: Section 7.1 Switchgear and Switchboard Assemblies 2 3 4
- NETA-MTS 2019: Section 7.1 Switchgear, Switchboard, and Panelboard Assemblies 2 3 4
Last Update: Feb 02, 2025
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Guide Table of Contents, Book 3
- Book 3 Overview
- A. Switchgear and Switchboard Assemblies
- B. Transformers
- C. Cables
- D. Metal-Enclosed Busways
- E. Switches
- F. Circuit Breakers
- G. Circuit Switchers
- H. Network Protectors
- I. Protective Relays
- J. Instrument Transformers
- K. Metering Devices
- L. Regulating Apparatus
- M. Grounding Systems
- N. Ground-Fault Protection Systems
- O. Rotating Machinery
- P. Motor Control Centers and Motor Starters
- Q. Adjustable-Speed Drive Systems
- R. Direct-Current Systems
- S. Surge Arresters
- T. Capacitors and Reactors
- U. Outdoor Bus Structures
- V. Emergency Systems
- W. Automatic Circuit Reclosers and Line Sectionalizers
- X. Fiber-Optic Cables
- Y. Insulating Liquids and Gases
- Z. Fuses
- AA. Electric Vehicle Charging Systems