IS 3513 : Part 1 : 1989 Specification for Resin Treated Compressed Wood Laminates (Compregs) - Part 1 : For Electrical Purposes

UDC 674.812.2 : 678.632 :621.315.619                        CED20

Reaffirmed 2019

1 Scope

1.1 This standard (Part 1) covers the requirements of resin treated compressed wood laminates (compregs) for electrical purposes.

1.2 This standard does not cover the requirements for solid compressed wood.

2 References

List of Indian Standards referred in the standard IS 324 : 1959 Specification for ordinary denatured spirit

IS 707 : 1976Glossary of terms applicable to timber technology and utilization

IS 848 : 1974Specification for synthetic resin adhesives for plywood (phenolic and aminoplastic)

IS 1586 : 1988Method for Rockwell hardness test for metallic material (Scales A-B-C-D-E-F-G-H-K)

IS 1708 Methods of testing of small clear specimens of timber

Part 1 : 1986 Determination of moisture content

Part 2 : 1986 Determination of specific gravity

Part 8 : 1986 Determination of compressive strength parallel to grain

Part 9 : 1986 Determination of compressive strength perpendicular to grain

Part 11 : 1986 Determination of shear strength parallel to grain

IS 1734 Methods of test for plywood

Part 9 : 1983 Determination of tensile strength

IS 1998 : 1962 Methods of test for thermosetting synthetic resin bonded laminated sheets

IS 2259 : 1963 Methods of test for determination of insulation resistance of solid insulating materials

IS 2824 : 1975Method for determining comparative tracking index of solid insulating materials under moist conditions

IS 3396 : 1979 Methods of test for volume and surface resistivities of solid electrical insulating materials

IS 3513 : Part 4 : 1966 Specification for high and medium density wood based laminates (compreg) : Part 4 Sampling and tests

IS 10026 : Part 3 : Sec 1 to 7 Specification for insulating varnishes containing solvents : Part 3 Specification for individual materials