EN IEC 60893 Industrial Rigid Laminates Based on Thermosetting Resins for Electrical Purposes

The standard "EN IEC 60893 Industrial rigid laminated panels based on thermoset resins for electrical purposes", which is based on a European standard and subsequently published by the International Electrotechnical Commission (IEC), consists of the following subsections published under the same title:

• The standard “EN IEC 60893-1 Part 1: Definitions, designations and general requirements” describes the definitions and general requirements that industrial rigid laminated boards for electrical purposes, made with any of the following resins as binders: epoxy (epoxide), melamine, phenolic, polyimide, silicone and unsaturated polyester.

The following reinforcements can be used alone or in combination: cellulose paper, cotton cloth, glass cloth, glass roving, glass matting, polyester cloth and wood veneers.

Materials that comply with this standard meet specified performance levels. However, a user's selection of a material for a particular application should be based not only on this standard but also on the actual requirements for satisfactory performance in that application.

In the latest update of this standard, new material types were added, changes were made to the property requirements of some existing types, a new method for testing permeability and dissipation factor was added, and all non-specification data for each type was moved to EN IEC 60893-4.

• The standard "EN IEC 60893-2 Part 2: Test methods" describes test methods for the materials defined in EN IEC 60893-1. This standard focuses specifically on industrial rigid laminates based on thermoset resins for electrical purposes and the test methods used to evaluate the properties of these materials.

The purpose of this standard is to provide standard test procedures for evaluating the mechanical, electrical, thermal, and physical properties of rigid laminated boards used as electrical insulators. These procedures are applicable to laminated boards made of thermosetting resins such as epoxy, phenolic, or polyester and reinforced with materials such as glass, cotton, or paper.

Essentially the following test methods are offered:

• Mechanical: Flexural strength, impact resistance and tensile strength.
• Electrical: Dielectric strength, insulation resistance and comparative tracking index.
• Thermal: Resistance to heat, thermal durability, and dimensional stability at high temperatures.
• Physical: Water absorption, density and dimensional tolerances.

This standard consists of several sections focusing on the properties of individual laminate board types. It covers the classification, properties, and performance requirements for rigid laminate boards used as electrical insulating materials. These materials are typically constructed from layers of fibrous substrates (e.g., paper, woven glass, or other fabrics) impregnated with thermosetting resins (e.g., epoxy, phenolic, or polyester).

This standard defines requirements for electrical, mechanical and thermal properties such as: dielectric strength, insulation resistance, flexural strength, thermal durability and water absorption.

These materials are used in electrical and electronic equipment such as transformers, motors, switchgear, and printed circuit boards where insulation and mechanical stability are critical.

• The standard "EN IEC 60893-3-2 Part 3-2: Requirements for individual materials - Requirements for rigid laminated panels based on epoxy resins" describes the requirements for industrial rigid laminated panels for electrical purposes based on epoxy resins and various reinforcements. Applications and distinguishing features are shown in the table provided within the standard. Materials that comply with this standard meet the specified performance levels. However, a user's selection of a material for a specific application should be based not only on this standard but also on the actual requirements for adequate performance in that application.

The boards covered by this standard are divided into types that differ in terms of the reinforcement used and their distinctive features.

• The standard "EN IEC 60893-3-3 Part 3-3: Requirements for individual materials - Requirements for rigid laminated boards based on melamine resins" describes the requirements for industrial rigid laminated boards for electrical purposes based on melamine resins and various reinforcements. Applications and distinguishing features are listed in the table provided within the standard. Materials that comply with this standard meet the specified performance levels. However, a user's selection of a material for a specific application should be based not only on this standard but also on the actual requirements for adequate performance in that application.
• The standard "EN IEC 60893-3-4 Part 3-4: Requirements for individual materials - Requirements for rigid laminated panels based on phenolic resins" describes the requirements for industrial rigid laminated panels for electrical purposes based on phenolic resins and various reinforcements. Applications and distinguishing characteristics are given. Materials that comply with this standard meet the specified performance levels. However, a user's selection of a material for a specific application should be based not only on this standard but also on the actual requirements for adequate performance in that application.
• The standard "EN IEC 60893-3-5 Part 3-5: Requirements for individual materials - Requirements for rigid laminated panels based on polyester resins" describes the requirements for industrial rigid laminated panels for electrical purposes based on polyester resins and various reinforcements. Applications and distinguishing features are listed in the table. Materials that comply with this standard meet the specified performance levels. However, a user's selection of a material for a specific application should be based not only on this standard but also on the actual requirements for adequate performance in that application.
• The standard "EN IEC 60893-3-6 Part 3-6: Requirements for individual materials - Requirements for rigid laminated sheets based on silicone resins" includes an amendment. This amendment introduces revised limits for CHARPY and IZOD impact strengths for the requirements of all rigid laminated sheets based on silicone resins.
• The standard "EN IEC 60893-3-7 Part 3-7: Specification for individual materials - Requirements for rigid laminated panels based on polyimide resins" describes the requirements for industrial rigid laminated panels for electrical purposes based on polyimide resins and various reinforcements. Applications and distinguishing features are listed in the table. Materials that meet this specification meet the specified performance levels. However, a user's selection of a material for a specific application should be based not only on this specification but also on the actual requirements for adequate performance in that application.
• The standard "EN IEC 60893-4 Part 4: Typical Values" serves as a technical report and provides tables of typical values ​​for properties not discussed or given in the tables given in the subparts of IEC 60893-3. These typical values ​​are intended to provide general guidance and should not be considered as standard requirements. The tables given in this standard give typical values ​​for the different types of industrial laminated boards for electrical purposes described in the subparts of IEC 60893-3.

Our organization, which has been supporting businesses across all sectors for years through a wide range of testing, measurement, analysis, and evaluation activities, has a strong team of employees who closely follow global developments in science and technology and are constantly improving themselves. In this context, we also provide testing services to businesses in accordance with the EN IEC 60893 standard for "Industrial rigid laminated panels based on thermoset resins for electrical purposes."