BT-900A Cable Semi-Conductive Shielding Layer Resistivity Tester

BT-900A
  • BT-900A
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BT-900A cable semi-conductive shielding layer resistivity tester is designed according to the test methods and technical specifications specified in the national standard IEC60840. It is used to test the resistivity of high-voltage cable semi-conductive inner and outer shielding layers.



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Product Description

BT-900A cable semi-conductive shielding layer resistivity tester is designed according to the test methods and technical specifications specified in the national standard IEC60840. It is used to test the resistivity of high-voltage cable semi-conductive inner and outer shielding layers.Using the principle of four-terminal current-voltage step-down method, the influence of contact resistance and lead resistance generated in the test can be effectively eliminated.The resistance of the shielding layer of cables with different diameters can be measured quickly and accurately through a dedicated test stand.

The electrical box has a high-precision digital voltmeter with a measurement range of 10μV - 2V.High stability DC constant current source, the output current is continuously adjustable from 0.1μA - 10mA, the measurement resistivity range is wide from 10-104Ω·m, the measurement resistance value is directly displayed digitally: the unit and decimal point are also automatically displayed, the instrument has Polarity switching and self-calibration function.

Technical Parameter

1. Measuring range:

    Resistivity 10-5 ~ 104Ω·m

    Resistance 10-3 ~ 107Ω

2. Measurement accuracy:± (0.5% reading + 2 words)

2  0MΩ range ± (3% reading + 2 words) (at 0.1mA, 2V)

3. Voltage range:20 mV, 200 mV, 2V

4. Test current:0.1μA, 1μA, 10μA, 100μA, 1mA, 10mA

5. Display: 3 1/2 digits

    LED digital display 0 ~ 1999, unit,decimal point,polarity display automatically

6. The test frame:

    Cable conductive shield diameter: 10mm ~ 35mm

    Cable insulation shield diameter: 50mm ~ 140mm

    Potential electrode spacing: 50mm±0.25mm

    The distance between the current electrode and the potential electrode is> 25mm

    Equipped with 13 internal shielding potential electrode and current electrode

  1. 7. Dimensions: Main box(mm): 360(L) x 420(W) x 120(H)

    Test stand(mm): 200(L)x 200(W) x 400(H)

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