Distinguish between high-voltage lines and low-voltage lines in the car

Usually, high-voltage lines, refers to 3 to 10 kV lines; low-voltage lines, refers to 220/380 volt lines. Power engineers you are able to clearly identify high and low voltage lines.

From the appearance of: High and low voltage identification of the following other methods:
1: high and low-voltage lines separately and separately erected, the distance between the high-voltage line poles is greater than the low-voltage, the pole is also higher.

2: high and low voltage lines with the pole erected, high voltage lines on the top, low voltage lines in the bottom; high voltage lines cross-arms longer than low voltage, the distance between the lines is larger than low voltage.

Of course, distinguish the car high-voltage, low-voltage harness cable characteristics, generally in accordance with the standard requirements, high-voltage cable must be visually distinguished from ordinary car cable, the designated surface must be bright orange.

Among them, how should you distinguish between high-voltage lines and low-voltage lines:

The first thing you can look at is the structure. High-voltage cables have many layers, peel off the outermost layer inside and armor, shielding, insulation, conductors, etc.. Low-voltage cables generally set aside the outermost layer, which is the insulation layer or conductor. Second, high-voltage cable insulation layer is thicker, low-voltage cable insulation layer is thinner. Low-voltage cable insulation layer is generally within 3 mm, high-voltage cable insulation layer is generally more than 5 mm. Again, you can look at the outermost layer of the cable nameplate. In the outermost layer of the cable is generally printed on the relevant parameters of the cable, including the cable model, cross-sectional area, rated voltage, length and other parameters

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