What are the testing standards for insulating paper?

Insulating paper is a general term for electrical insulating paper. It is used as insulating material for various electrical equipment such as cables and coils. In addition to having good insulation performance and mechanical strength, each has its own characteristics.

 

High temperature insulating paper, fireproof insulating paper, high voltage electric insulating paper for EMUs, busbar insulating paper, motor insulating paper, transformer insulating paper, motor insulating paper, composite insulating paper, etc.

 

1. GB/T 1913.1-2005 Unbleached impregnated insulation paper

 

2. GB 1913.1-1990 Unbleached impregnated insulation paper

 

3. GB/T 7976-1987 Insulation paper and paperboard Determination of conductivity of water extract

 

4. QB/T 5399-2019 1000kV transformer interturn insulation paper

 

5. DL/T 1980-2019 Determination of average moisture content of transformer insulation paper (board) Frequency domain dielectric spectroscopy

 

6. JB/T 10442.1-2017 Diamond-coated insulation paper for electrical use Part 1: Definitions and general requirements

 

7. DL/T 580-2013 Determination of average moisture content in transformer insulation paper by dew point method

 

8. QB/T 2192-2011 Wrapped insulation paper

 

9. QB/T 4250-2011 500kV transformer interturn insulation paper

 

10. JIS C2300-3-1-2010 Cellulose paper for electrical purposes. Part 3-1: Specifications for individual materials. Electrical insulation paper

 

11. KS C IEC 60450-2008 Measurement of average viscosity polymerization degree of new and aged electrical insulation paper

 

12. SANS 6281-1-2007 Test methods for oil-impregnated paper insulated cables. Part 1: Tests for insulating paper and semi-conducting paper

 

13. JB/T 10713-2007 Aluminum foil shielded insulation paper

 

14. JB/T 10441.1-2004 Corrugated insulating paper for electrical use. Part 1: Definitions and general requirements

 

 

Composition testing, material testing, quality testing, voltage resistance testing, polymerization degree testing, temperature resistance level testing, voltage breakdown strength testing, mechanical properties testing, mechanical properties testing, thermal conductivity testing, tensile strength testing, breakdown resistance testing, insulation testing, waterproof testing, dryness testing, water absorption testing, etc.