IEC 60664-4 PDF

Find the most up-to-date version of IEC at Engineering IEC Insulation Coordination for Equipment within Low-Voltage Systems – Part 4: Considerations of High-Frequency Voltage Stress. Buy IEC INSULATION COORDINATION FOR EQUIPMENT WITHIN LOW-VOLTAGE SYSTEMS – PART 4: CONSIDERATION OF.

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It applies to equipment for use up to 2 m above sea level having a rated voltage up to a.

This part also applies to Part 3 for frequencies greater than 30 kHz and protection of type 1. This part does not deal with distances – through liquid insulation, – through gases other than air, – through compressed air. Consideration of high-frequency voltage stress. Related publications IEC In normal use of equipment, it is assumed that the interference of high-frequency voltages emitted to the mains is negligible with respect to insulation stress.

The object of this standard is to guide technical committees responsible for different equipment in order to rationalise their requirements so that insulation coordination is achieved when specifying clearances in air, creepage distances and solid insulation for equipment.

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Specifies the requirements for clearances, creepage distances and solid insulation for equipment based upon their performance criteria. The dimensioning values directly apply for basic insulation; for reinforced insulation additional requirements apply according to Part 1.

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Therefore it is not necessary to take it into account.

By using Part 1 or Part 5 together with this part the frequency limit of Part 1 or Part 5 is extended to frequencies higher than 30 kHz. It is applicable for the dimensioning of clearances, creepage distances and solid insulation stressed by any type of periodic voltages with a fundamental frequency above 30 kHz and up to 10 MHz. Preview Abstract IEC The following test report forms are related: For type 2 protection this question is under consideration.

The dimensioning values directly apply for basic insulation; for reinforced insulation additional requirements apply according to Part 1.

Insulation coordination for equipment within low-voltage systems — Part 4: It is applicable for the dimensioning of clearances, creepage distances and solid insulation stressed by any type of periodic voltages with a fundamental frequency above 30 kHz and up to 10 MHz.

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Our prices are in Swiss francs CHF. For type 2 protection this question is under consideration.

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The minimum clearances specified in this part do not apply where ionized gases occur. TC – Insulation co-ordination for low-voltage equipment rss. This part also applies to Part 3 for frequencies greater than 30 kHz and protection of type 1.

The major changes made during the revision of IEC were the following: It has the status of a horizontal standard in accordance with IEC Guide Special requirements for such situations may be specified at the discretion of the relevant technical committee. Applies to equipment for use up to 2 m above sea level having a rated voltage up to a.

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Do you need a multi-user copy? By using Part 1 or Part 5 together with this part the frequency limit of Part 1 or Part 5 is extended to frequencies higher than 30 kHz. This part of IEC deals with basic, supplementary and reinforced insulation subjected to high-frequency voltage stress within low-voltage equipment.

NOTE 2 This standard does not consider the high-frequency emission to the mains. Skip to main content.

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