Test items and evaluation criteria for electrical performance of IC chips

Date：2021-12-27 14:03:37 Views：1494

The electrical performance of electronic and electrical equipment directly affects the safe and reliable operation of the whole electrical system. In order to ensure the safety of equipment, all electronic and electrical equipment must pass various type tests in the production and manufacturing process to ensure the safety of electrical environment. The electrical performance test includes the basic parameter test of conductor or insulation quality, such as conductor resistance, insulation resistance, correct value of dielectric loss angle, capacitance, etc. The higher the working voltage of the cable, the stricter the requirements for its electrical performance.

（1） DC resistance test of conductive core

The resistance of the cable of each nominal section shall not exceed a certain value, otherwise it will increase the core loss of the cable during use, resulting in cable heating, which will not only consume material and electric energy, accelerate the aging of plastic cable, but also bring danger to the reliability and stability of cable operation. At present, double arm measuring bridge is commonly used.

（2） Insulation resistance test

The ratio of DC voltage U applied to insulation to leakage current I is called insulation resistance R. the insulation resistance of cable is mainly to judge the humidity and insulation quality of cable insulation layer.

The main contents of electrical characteristic testing: electrical performance testing services for rubber, plastics, coatings, adhesives, building materials, metal materials, electric core cables and other industries and various material products. Test items: surface resistance, surface resistivity, volume resistance, volume resistivity, breakdown voltage, dielectric strength, dielectric loss, electrostatic performance and other test standards:

GB 11297.11-1989 test method for dielectric constant of pyroelectric materials

GB 11310-1989 test methods for properties of piezoelectric ceramics -- Measurement of temperature characteristics of relative free dielectric constant

GB / T 12636-1990 microwave dielectric substrates -- stripline test method for complex permittivity

GB / T 1693-2007 vulcanized rubber Determination of dielectric constant and dielectric loss tangent

GB / T 2951.51-2008 general test methods for insulating and sheathing materials of electric and optical cables Part 51: special test methods for filling paste drop oil separation low temperature brittleness total acid value corrosivity dielectric constant at 23 ℃ and DC resistivity at 100 ℃

GB / T 5597-1999 test method for microwave complex permittivity of solid dielectrics

GB / T 7265.1-1987 test method for microwave complex permittivity of solid dielectrics perturbation method

Test method for microwave complex permittivity of solid dielectrics "open cavity" method

SJ / T 10142-1991 test method for microwave complex permittivity of dielectric materials coaxial terminal open circuit method

SJ / T 10143-1991 test method for microwave complex permittivity of solid dielectrics reentrant cavity method

SJ / T 11043-1996 test method for high frequency dielectric loss and dielectric constant of electronic glass

SJ / T 1147-1993 test method for dielectric loss tangent and dielectric constant of organic thin films for capacitors

SJ 20512-1995 test method for complex permittivity and complex permeability of microwave large loss solid materials

SY / T 6528-2002 measurement method of dielectric constant of rock sample

GB / T 3333-1999} test method for power frequency breakdown voltage of cable paper

GB / T 3789.17-1991 test method for electrical properties of transmitting tubes test method for electrical strength

GB / T 507-2002} insulating oils Determination of breakdown voltage

GB 7752-1987 test method for power frequency breakdown strength of insulating adhesive tapes

SH / T 0101-1991 determination of dielectric strength of petroleum wax and petroleum grease

GB / T 1424-1996 test method for resistance coefficient of precious metals and their alloys

GB / T 351-1995 measurement method of resistance coefficient of metallic materials

Hg / T 3331-1978 determination of volume resistance coefficient and surface resistance coefficient of insulating paint film (original Hg / T 2-59-78)

Hg 3332-1978 determination of arc resistance of insulating paints

Hg / T 3332-1980 determination of arc resistance of arc resistant paint