General Standard of Medium-voltage equipment and its accessories

- Nov 22, 2025
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General Standard of Medium-voltage equipment and its accessories

 

Medium-voltage equipment and its accessories must be designed, manufactured, and tested in accordance with the specifications given in the following standards and regulations, in their most recent editions. These standards are mandatory and will be required upon acceptance of the equipment:

 

IEC 62271-102

:

High-voltage switchgear and controlgear-Part 102: Alternating current disconnectors and earthing switches.

IEC 61869-1

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Instrument transformers - Part 1: General requirements.                       

IEC 61869-2

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Instrument transformers - Part 2: Additional requirements for current transformers.

IEC 61869-3

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Instrument transformers - Part 3: Additional requirements for inductive voltage transformers

IEC-60137

:

Insulated bushings for alternating voltage above 1000V

IEC 60060-1/2

:

High-voltage test techniques. Part 1: General definitions and test requirements. Part 2: Measuring Systems.

IEC 60099-1

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Part 1: Non-linear resistor type gapped surge arresters for a.c. systems

IEC 60099-4/5

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Surge arresters. Part 4: Metal-oxide surge arresters without gaps for a.c. systems. Part 5: Selection Surge arresters

IEC-60270

:

High voltage test techniques – Partial discharge measurements

IEC TS 61463

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Bushings - Seismic qualification.

IEC-60273

:

Characteristic of indoor and outdoor post insulators for systems with nominal voltages greater than 1000 V.

IEC 62271-1

:

High-voltage switchgear and controlgear - Part 1: Common specifications for alternating current switchgear and controlgear

IEC 60376

:

Specification of technical grade sulfur hexafluoride (SF6) for use in electrical equipment.

IEC 62155

:

Hollow pressurized and unpressurized ceramic and glass insulators for use in electrical equipment with rated voltages greater than 1000 V

IEC 60947-5-1

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Low-Voltage Switchgear and Controlgear-Part 5-1 Control Circuits Devices and Switching Elements.

IEC 60815

:

Guide for the selection of insulators in respect of polluted condition

IEC 60068-2

:

Environmental testing - Part 2: Tests

IEC 60529

:

Degrees of protection provided by enclosures (IP Code).

IEEE C37.04

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Standard Rating Structure for AC High-Voltage Circuit Breakers

IEEE C37.06

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AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis- Preferred Ratings and Related Required Capabilities.

IEEE C37-30

:

Standard Requierements for High-Voltage Switches

IEEE C37-32

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High-Voltage Air Disconnect Switches Interrupter Switches, Fault Initiating Switches, Grounding. Switches

IEEE Std C57.13      

:

Requirements for Instrument Transformers.

IEEE Std C57.19.00

:

General Requirements and Test Procedure for Power Apparatus Bushings.

IEEE Std C57.19.01

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Performance Characteristics and Dimensions for Outdoor Apparatus Bushings.

IEEE C62.11

:

Standard for Metal-Oxide Surge Arresters for AC Power Circuits (>1 kV)

IEEE C62.22

:

Guide for the Application of Metal-Oxide Surge Arresters for Alternating-Current Systems

IEEE 1299/C62.22.1

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Guide for the Connection of Surge Arresters to Protect Insulated, Shielded Electric Power Cable Systems

IEEE 693

:

 Recommended practice for seismic designo f substations

ASTM A123

:

Galvanizado en caliente de productos de Fierro y acero.

ASTM A153

:

Especificación para galvanizado en caliente de herrajes de fierro y acero.

ISO 1461

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Galvanizado en baño caliente de productos de fierro y acero.

NCh2369

:

Diseño sísmico de estructuras e instalaciones industriales

ETG-1.020

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Especificaciones Técnicas Generales Diseño Sísmico. ENDESA

NTSyCS 2020

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Norma Técnica de Seguridad y Calidad de Servicio de Chile, última edición.

ASTM A386/A385/A384

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Specification for Zinc Coating (Hot-Dip) on Assembled Steel Products