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Ningbo Qiaopu Electric Co., Ltd. operating standard Power cord tester
2012-03-11 21:46:09
 

Ningbo Qiaopu Electric Co., Ltd. operating standard Power cord tester

A the, Ningbo Qiaopu Electric Co., Ltd. the use of tools: water bath, thermometer, wire stripper, tape measure.
Second, the matter of the check: test wire and cable, room temperature or under high temperature Power cord.
Third, the preparatory work:
Following the water pressure test, that is, test the Power cord value;
2, to take samples at both ends to remove the outside, placed in the water bath six hours, both ends of the exposed surface; high temperature Power cord test, then soak for 2 hours at a set temperature;
3, zero: The
a power supply in the OFF position;
b, the TEST VOLTAGE go to the specified test voltage value;
c, the right-most switch in the the DISCHARGE Office;
d, the right of the TEST VOLTAGE knob to OV at the rate outside the circle shall prevail, otherwise prevail within the circle.
Four action items:
1, "UNKNOWN'' s" - "Terminator copper conductor," ┼ "end in the sink; such as the testing of multi-core cable between the conductor between the conductor and the insulating layer between the conductor and ground ;
2, the power switch to the POWER Office;
3, DISCHARGE up pull to CHARGE at one minute after charging, pull MEASURE Department;
4, the rotation rate knob to select the appropriate magnification;
5, the contemplation of the reading table pointer position to read values​​;
6, the switch is set to DISCHARGE at the power switch to the OFF position, the wire back in place;
7, read out the value multiplied by the magnification is measured cable, the measured resistance value;
, Record the water temperature, and the following table to check the temperature coefficient (temperature coefficient table attached);
Power cord value is calculated as: Power cord value (ΜΩ ‧ KFt 20 ° C) = measured value × wire solid (KFT) × temperature coefficient
Five safety precautions:
A power switch to ON, do not hand to touch the copper conductor;
Test, "┼" "-" line of the UNKNOWN not touched by hand.


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