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Stock Code:300252
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GB cable and non - standard cable

author:kingsignal time:2017/08/22

As we all know the country for each power cable and cable resistance values are clearly defined, the difference between the national standard cable and non-standard cable is the most fundamental way to measure the cable at room temperature 20 ℃ DC resistance, measured resistance and calculated resistance value comparison, To see whether the standard requirements (cable a certain diameter, conductivity, length is not greater than a certain resistance), the resistance value is less than or equal to the national standard as the national standard, resistance value of the national standard as non-standard cable.

 

Due to the general consumer, factory, engineering procurement rarely sent to the quality inspection departments to detect, and secondly there is no testing equipment to measure resistance; and we share a simple distinction between GB and non-standard cable method, the detection tool only need to use To a thousand points card (hardware stores have to buy).

 

For everyone to calculate a 150mm2 cable conductor of the actual square of the calculation method:

 

150 mm2 Our conductor structure is: 30 x 2.62 (diameter).

So the actual square number of our 150 mm2 cable is about 161.65 mm2,

Calculated as follows:

First diameter ÷ 2 to get the radius, radius x radius x pi x count ≈ the actual square

Converted as follows: 2.62 ÷ 2 = 1.31, 1.31 x 1.31 x 3.14 x 30 ≈ 161.65 mm2

 

The above is a brief description of the causes of the heat generated during the operation of the power cable. To learn more about the power cable, please pay attention to kingsignal's official website

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