GB/T 1410-2006[Replaced by GB/T 31838.2-2019] Methods of test for volume resistivity and surface resistivity of solid electrical insulating materials (English PDF)

Foreword

This Standard is equivalent to adopt IEC 60093.1980 Methods of test for

volume resistivity and surface resistivity of solid electrical insulating materials

(English version).

For ease of use, this Standard makes the following editorial changes.

a) Deleted Contents and Foreword of the international standard;

b) Used "." to replace the "," that is acted as decimal point;

c) Used "rhoY" to replace "rho", "rhos" to replace "delta";

d) Marked figures according to GB/T 1.1-2000.

Compared with GB/T 1410-1989, the main changes of this Standard are as

follows.

a) Added "Normative references" (Clause 2 of this Standard);

b) Added Test voltage range (Clause 5 of this Standard);

c) Used "medium value" to replace "geometric mean" in test results.

This Standard replaces GB/T 1410-1989 Methods of test for volume resistivity

and surface resistivity of solid electrical insulating materials.

Appendix A, Appendix B and Appendix C of this Standard are informative.

This Standard was proposed by National Technical Committee on Insulating

Material of Standardization Administration of China.

Drafting organization of this Standard. Guilin Electrical Appliance Scientific

Research Institute.

Main drafters of this Standard. Wang Xianfeng, and Gu Xiaoli.

This Standard replaces the following previous standards.

- GB/T 1410-1978;

- GB/T 1410-1989.

Methods of test for volume resistivity and surface

resistivity of solid electrical insulating materials

1 Scope

This Standard specifies methods of test for volume resistivity and surface

resistivity of solid electrical insulating materials. These methods of test cover

procedures for the determination of volume and surface resistance and

calculations for the determination of volume and surface resistivity of solid

electrical insulating materials.

Both volume resistance and surface resistance tests are affected by the

following factors. the magnitude and time of voltage application, the nature and

geometry of the electrodes, and the temperature and humidity of the ambient

atmosphere and of the specimens during conditioning and measurement.

2 Normative references

The following standards contain the provisions which, through reference in this

Standard, constitute the provisions of this Standard. For dated references, the

subsequent amendments (excluding corrections) or revisions do not apply to

this Standard. However, the parties who enter into agreement based on this

Standard are encouraged to investigate whether the latest versions of these

documents are applicable. For undated reference documents, the latest

versions apply to this Standard.

GB/T 10064-2006 Methods of test for the determination of the insulation

resistance of solid insulating materials

GB/T 10580-2003 Standard conditions for use prior to and during the testing

of solid insulating materials

IEC 60260.1968 Test enclosures of non-injection type for constant relative

humidity

3 Definitions

The following definitions apply to this document.

5 Power supply

A source of very steady direct voltage is required. This may be provided either

by batteries or by a rectified and stabilized power supply. The degree of stability

required is such that the change in current due to any change in voltage is

negligible compared with the current to be measured.

Commonly specified test voltages to be applied to the complete specimen are

100 V, 250 V, 500 V, 1 000 V, 2 500 V, 5 000 V, 10 000 V and 15 000 V. Of these

the most frequently used are 100 V, 500 V and 1 000 V.

In some cases, the specimen resistance depends upon the polarity of the

applied voltage. If the resistance is polarity dependent, this should be indicated.

The geometric (arithmetic mean of the logarithmic exponents) mean of the two

resistance values is taken as the result.

Since the specimen resistance may be voltage dependent, the test voltage

should be stated.

6 Measuring methods and accuracy

7 Test specimens