GB/T 1303 consists of the following parts, under the general title Industrial Rigid Laminated Sheets Based on Thermosetting Resins for Electrical Purposes:
— Part 1: Definitions, Designations and General Requirements;
— Part 2: Test Methods;
— Part 3: Requirements for Types of Industrial Rigid Laminated Sheets;
— Part 4: Requirements for Rigid Laminated Sheets Based on Epoxy Resins;
— Part 5: Requirements for Rigid Laminated Sheets Based on Melamine Resins;
— Part 6: Requirements for Rigid Laminated Sheets Based on Phenolic Resins;
— Part 7: Requirements for Rigid Laminated Sheets Based on Polyester Resins;
— Part 8: Requirements for Rigid Laminated Sheets Based on Silicone Resins;
— Part 9: Requirements for Rigid Laminated Sheets Based on Polyimide Resins;
— Part 10: Requirements for Rigid Laminated Sheets Based on Bis-maleimide Resins;
— Part 11: Requirements for Rigid Laminated Sheets Based on Polyamide-imide Resins;
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This part is Part 1 of GB/T 1303.
Industrial Rigid Laminated Sheets Based on Thermosetting Resins for Electrical Purposes — Part 1: Definitions, Designations and General Requirements
1 Scope
This part of GB/T 1303 contains the definitions related to, and the general requirements to be fulfilled by, industrial rigid laminated sheets for electrical purposes, made with any of the following resins as the binder: epoxy (epoxide), melamine, phenolic, polyimide, silicone and unsaturated polyester. The following reinforcements may be used either singly or in combination; cellulosic paper, cotton cloth, glass cloth, glass roving, glass mat, polyester cloth and wood veneers.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of GB/T 1303. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this standard. However, parties to agreements based on this part are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 1303.2-2009 Industrial Rigid Laminated Sheets Based on Thermosetting Resins for Electrical Purposes — Part 2: Test Methods (IEC 60893-2:2003, MOD)
3 Definitions
3.1
industrial rigid laminated sheets
sheets based on thermosetting resins consisting of superimposed layers of reinforcement that have been impregnated with thermosetting resin and bonded together under heat and pressure to form a single piece
Note: Other constituents, for example colouring matter, may be incorporated.
3.2
epoxy resin/epoxide resin
synthetic resin containing epoxide groups, which is formulated to enable cross-linking
3.3
melamine resin
amino resin made by polycondensation of melamine with formaldehyde or another compound that is capable of providing methylene bridges
Foreword II
1 Scope
2 Normative References
3 Definitions
4 Designation
5 General Requirements
Bibliography
