IS 4486 : 1967 Recommended methods for the determination of the permittivity and dielectric dissipation factor of electrical insulating materials at power, audio and radio frequencies including metre wavelengths

1 Scope

1.1 This standard covers test methods for determination ofpermittivity and dissipation factor and of quantities calculatedfrom them, such as loss index within the frequency range of 50 c/sto 300 Mc/s, of electrical insulating materials-liquid, fusible aswell as solid materials.

2 References

IS 2 :1960 Rules for rounding offnumerical values

IS 2260 : 1963Recommendations for the conditioning and testing ofelectrical insulating materials