Free Standards Library

IEEE Std C37.23-2015 pdf download – IEEE Standard for Metal-Enclosed Bus

IEEE Std C37.23-2015 pdf download - IEEE Standard for Metal-Enclosed Bus . interleaving: A method of arranging the cables within a cable bus system so that a better balance is maintained for the currents both between phases...

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IEEE Std C37.21-2017 pdf download – IEEE Standard for Control Switchboards

IEEE Std C37.21-2017 pdf download - IEEE Standard for Control Switchboards dual switchboard: A control switchboard with front and rear panels separated by a comparatively short distance (no aisle) and enclosed at both ends and top. The...

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IEEE Std C37.20.7-2017 pdf download – IEEE Guide for Testing Switchgear Rated Up to 52 kV for Internal Arcing Faults

IEEE Std C37.20.7-2017 pdf download - IEEE Guide for Testing Switchgear Rated Up to 52 kV for Internal Arcing Faults. 4. Ratings 4.1 General An IEEE guide cannot mandate or defne equipment ratings. This guide is intended...

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IEEE std C37.20.6-2015 pdf download – IEEE Standard for 4.76 kV to 38 kV Rated Ground and Test Devices Used in Enclosures

IEEE std C37.20.6-2015 pdf download - IEEE Standard for 4.76 kV to 38 kV Rated Ground and Test Devices Used in Enclosures. 3. Definitions For the purposes of this document, the following terms and definitions apply. The...

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IEEE Std C37.20.2a-2020 pdf download – IEEE Standard for Metal-Clad Switchgear Amendment 1: Control and Secondary Circuits and Devices, and All Wiring

IEEE Std C37.20.2a-2020 pdf download - IEEE Standard for Metal-Clad Switchgear Amendment 1: Control and Secondary Circuits and Devices, and All Wiring. 7.3.2 Voltage transformer fusing The following requirements shall be met: a) Primary circuits of all...

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IEEE Std C37.20.1a-2020 pdf download – IEEE Standard for Metal-Enclosed Low-Voltage (1000 V ac and below, 3200 V dc and below) Power Circuit Breaker Switchgear Amendment 1: Control and Secondary Circuits and Devices, and All Wiring

IEEE Std C37.20.1a-2020 pdf download - IEEE Standard for Metal-Enclosed Low-Voltage (1000 V ac and below, 3200 V dc and below) Power Circuit Breaker Switchgear Amendment 1: Control and Secondary Circuits and Devices, and All Wiring. EXCEPTION:...

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IEEE Std C37.20.1-2015 pdf download – IEEE Standard for Metal-Enclosed Low- Voltage (1 000 Vac and below, 3200 Vdc and below) Power Circuit Breaker Switchgear

IEEE Std C37.20.1-2015 pdf download - IEEE Standard for Metal-Enclosed Low- Voltage (1 000 Vac and below, 3200 Vdc and below) Power Circuit Breaker Switchgear. production tests: Tests made for quality control by the manufacturer on every...

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IEEE Std C37.016-2018 pdf download – IEEE Standard for AC High Voltage Circuit Switchers Rated 1 5.5 kV through 245 kV

IEEE Std C37.016-2018 pdf download - IEEE Standard for AC High Voltage Circuit Switchers Rated 1 5.5 kV through 245 kV. 3. Definitions For the purposes of this document, the following terms and definitions apply. The IEEE...

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IEEE Std C37.13-2015 pdf download – IEEE Standard for Low-Voltage AC Power Circuit Breakers Used in Enclosures

IEEE Std C37.13-2015 pdf download - IEEE Standard for Low-Voltage AC Power Circuit Breakers Used in Enclosures. anti-pump (pump-free) device: A device that prevents reclosing after an opening operation as long as the device initiating closing is...

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IEEE Std C37.12-2018 pdf download – IEEE Guide for Specifications of High- Voltage Circuit Breakers (over 1000 V)

IEEE Std C37.12-2018 pdf download - IEEE Guide for Specifications of High- Voltage Circuit Breakers (over 1000 V). 4.5.2 Out-of-phase withstand voltage Users should be aware that IEEE Std C37.04-1999 does not define an“out-of-phase”voltage withstand rating for...

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