British Standards Institution

Source:: IEC
Committee:: GEL/112 - Evaluation and qualification of electrical insulating materials and systems
Categories:: Standardization. General rules | Measurement and Science | Metrology and measurement | Measurement. Electrical and magnetic | Electricity. Magnetism. Other | Insulating materials | Insulating materials. General

Scope

This document provides the measuring technology and the test method for relative permittivity and dissipation factor of insulating polymer film with very thin thickness, with a single layer, and without metallization on the sample surface. The adaptive thickness range is about from 10 to 100 μm. The proposed frequency is the power frequency, and it is also suitable for the technical frequency range from 1 Hz to 1 MHz.

Purpose

For measuring the relative permittivity and dielectric dissipation factor of insulating polymer film with very thin thickness (about 10-100 μm) is important for its insulation application. Now, it is absence of the suitable technology and standard for a single layer polymer film with very thin thickness. To use multilayer polymer films with 20-50 layers, it can be gotten the average value of the relative permittivity and dielectric dissipation factor of insulating polymer film, but the effect of air-gap inside may be not negligible. With the metalized electrodes on the surface of polymer film, it is suitable to get the acceptable results of the relative permittivity and dissipation factor of insulating polymer film in research laboratory, but it is not easy to use in the industrial situation. This standard provides the measuring technology and the test method for relative permittivity and dielectric dissipation factor of insulating polymer film with very thin thickness under technical frequency, with a single layer, and without metallization on the sample surface.

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal

Proposal start date:

29/07/2021

Proposal end date:

29/08/2021

2. Draft

3. Public Comments

4. Comment Resolution

5. Approval

6. Publication

Learn more about the standards development process

Standards Development

PNW 112-540 ED1: Dielectric and resistive properties of solid insulating materials - Part 2-3: Determination of relative permittivity and dielectric dissipation factor (AC methods) - Contact electrode method for insulating films

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