IEC TR 60932-1988 PDF

Full title and description

IEC/TS 60932:1988 — "Additional requirements for enclosed switchgear and controlgear from 1 kV to 72,5 kV to be used in severe climatic conditions". This Technical Specification defines degrees of severe service with respect to condensation and pollution and gives test procedures to assess the performance of enclosed switchgear and controlgear under those conditions.

Abstract

This technical report (Technical Specification) provides additional requirements and test methods for metal-enclosed and insulation-enclosed high-voltage switchgear and controlgear with rated voltages above 1 kV up to 72.5 kV when intended for service in severe climatic environments (notably heavy condensation and atmospheric pollution). It addresses classification of severe-service conditions and special attention to mechanical components such as drives, interlocks and enclosures to determine suitability for such environments.

General information

• Status: Withdrawn / replaced (cancelled and replaced by IEC TS 62271-304:2008).
• Publication date: 1988 (first edition, published 1 January 1988).
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 29.130.10 (High-voltage switchgear and controlgear).
• Edition / version: Edition 1.0 (1988).
• Number of pages: 40 (as published by IEC).

Scope

Applies to metal-enclosed and insulation-enclosed switchgear and controlgear for alternating current systems from 1 kV up to 72.5 kV (references IEC publications 298 and 466) when intended for use in climatic service conditions more severe than normal service with respect to condensation and pollution. Gas-insulated switchgear (GIS) is excluded. The document gives classification criteria for degrees of severe service and specifies tests to assess performance of electrical and mechanical components (including drives, interlocks and enclosures) under these specified conditions.

Key topics and requirements

• Definition and classification of two degrees of severe climatic service with emphasis on condensation and atmospheric pollution.
• Environmental conditioning and test procedures to simulate severe condensation and pollution exposure.
• Performance assessment criteria for electrical insulation and clearances under severe conditions.
• Requirements and special rules for mechanical components (drives, interlocks, enclosures) to ensure reliable operation in severe climates.
• Exclusion of gas-insulated switchgear (GIS) from the scope and guidance for application to metal- and insulation-enclosed equipment.

Typical use and users

Used by manufacturers, test laboratories, specifiers and utilities for design verification and type-testing of indoor and outdoor enclosed high-voltage switchgear destined for deployment in climates with high condensation risk or significant atmospheric pollution. Typical users include switchgear designers, assembly manufacturers, utility specification teams, and conformity assessment bodies.

Related standards

Replaced by IEC TS 62271-304 (2008), which updated and consolidated requirements for indoor enclosed switchgear and controlgear used under severe climatic conditions (the 2008 TS subsequently revised). Other related publications include IEC 62271-1 (general definitions and ratings for high-voltage switchgear and controlgear) and the IEC documents referenced for the original equipment types cited in the text.

Keywords

enclosed switchgear, controlgear, severe climatic conditions, condensation, pollution, test procedures, design classes, high-voltage switchgear, mechanical performance, IEC TS 60932:1988.

FAQ

Q: What is this standard?

A: IEC/TS 60932:1988 is an IEC Technical Specification that provided additional requirements and test methods for enclosed switchgear and controlgear from 1 kV to 72.5 kV when intended for severe climatic service (condensation and pollution).

Q: What does it cover?

A: It covers classification of severe climatic conditions, environmental tests and performance assessment for electrical insulation and mechanical components of metal-enclosed and insulation-enclosed switchgear and controlgear; GIS equipment is excluded.

Q: Who typically uses it?

A: Manufacturers of enclosed switchgear and controlgear, utilities and system planners specifying equipment for polluted or condensation-prone environments, and test houses performing qualification and type tests.

Q: Is it current or superseded?

A: It has been superseded — IEC/TS 60932:1988 was cancelled and replaced by IEC TS 62271-304:2008 (a technical revision that updated applicability and design classes), so IEC/TS 60932:1988 is no longer the current active document.

Q: Is it part of a series?

A: It belongs to the IEC switchgear/controlgear family of publications and was developed under TC 17/SC 17C (assemblies); its subject matter is related to other parts of IEC 62271 (high-voltage switchgear and controlgear) and to the national/adopted standards that address severe climatic conditions for similar equipment.

Q: What are the key keywords?

A: enclosed switchgear, controlgear, severe climatic conditions, condensation, pollution, test procedures, drives and interlocks, IEC TS.