IEC 60358-1:2025 PDF

Name: IEC 60358-1:2025 — Coupling capacitors and capacitor dividers - Part 1: General rules
SKU: IEC 60358-1:2025
Price: 35 EUR
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Coupling capacitors and capacitor dividers - Part 1: General rules

Название (английский):

IEC 60358-1:2025

Coupling capacitors and capacitor dividers - Part 1: General rules

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 77
Дата публикации:: 23 декабря 2025 г.
Издание:: IEC IS 60358 edition 2 version 1
ICS:: 29.120.99

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Описание (английский):

IEC 60358-1:2025 This part of IEC 60358 applies to: Coupling capacitors and capacitor dividers, with rated voltage > 1 000 V, connected line to ground with the low-voltage terminal either permanently earthed or connected to devices, for applications listed hereunder and other similar uses. This document serves as a basic standard for the coupling capacitors and capacitor dividers.

Abstract

Похожие стандарты

Другие стандарты IEC

Overview

IEC 60358-1:2025 - Coupling capacitors and capacitor dividers - Part 1: General rules - is the 2025 basic international standard that defines general rules for coupling capacitors and capacitor dividers with rated voltage > 1 000 V. Published as Edition 2.0 and available as an RLV (redline) version, the document includes the full text and a redline showing technical changes from the previous edition. The standard covers equipment connected line-to-ground where the low-voltage terminal is permanently earthed or connected to ancillary devices.

Key topics and technical requirements

IEC 60358-1:2025 sets out core design, testing and operational rules, including:

Scope and ratings - rated voltages, rated frequency and voltage factors for AC and DC use.

Design requirements - insulation levels, external insulation, voltage grading for DC, temperature-rise limits and capacitor element ageing criteria.

Electrical performance - capacitance at power frequency, losses (tanδ), partial discharge limits and chopped lightning impulse considerations.

Electromagnetic emissions - requirements and measurement of radio interference voltage (RIV).

Mechanical and enclosure requirements - mechanical strength, liquid/gas tightness, marking and temperature coefficient of capacitance.

Testing framework - classification and sequences for routine tests, type tests, special tests and design/ageing tests. Notable test methods include impulse tests, wet tests for outdoor equipment, polarity reversal for DC units, RIV tests and high-frequency characteristic measurements.

Installation, transport and maintenance - rules for storage, handling, final inspection and periodic maintenance.

Safety and environmental aspects - basic safety provisions and influence on the natural environment.

Informative and normative annexes - test circuits, superimposed impulse procedures, HF measurements and voltage definitions.

Practical applications and users

IEC 60358-1:2025 is essential for anyone involved with high-voltage capacitive equipment, including:

Manufacturers of coupling capacitors and capacitor dividers designing products to meet international safety and performance criteria.

Test laboratories performing routine, type and special tests (partial discharge, impulse, RIV, temperature rise).

Utilities and OEMs applying capacitive devices in high-voltage substations, measurement and protection circuits, and power transmission systems.

Specifiers, installers and maintenance teams needing guidance on transport, installation, testing and lifecycle checks.

Regulators and certification bodies assessing conformity to international high-voltage capacitor standards.

IEC 60358-1:2025 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Practical applications and users

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