News

Advantages of using cable protection sleeves to protect cables

1, good corrosion resistance, long service life, can be used in wet salt and alkali. 2, flame retardant, heat resistance, can be used for a long time at 130 °C without deformation, not burning in case of fire. 3. High strength and high rigidity. In the ordinary area, it can be directly buried in the... read more

Oct 12,2019 News
The color of the wire represents what line

1, according to the wire color marking circuit Black - internal wiring of devices and equipment. Brown - the positive pole of the DC circuit. Red - phase C of a three-phase circuit; a collector of a semiconductor transistor; A cathode of a semiconductor diode, a rectifier diode, or a thyristor. Yell... read more

Oct 09,2019 News
The disadvantage of high voltage cable buried in the ground(2)

On the other hand, it is also the innate "hard" of the underground cable itself. In terms of heat dissipation of the wires, the overhead lines have an advantage in heat dissipation, and the cables buried in the ground are difficult to dissipate due to space and air circulation problems, which largel... read more

Sep 30,2019 News
The disadvantage of high voltage cable buried in the ground(1)

Ultra-high voltage transmission refers to the transmission of electrical energy between voltages of 0.5 kV to 1 k kV. If the 220 kV transmission index is 100%, the relative investment per kilometer of EHV transmission, the relative cost per 100 kWh of electricity transmission per kWh, and the consum... read more

Sep 23,2019 News
The main performance of the insulation material of the power cable

The following main features should be available: (1) not easily broken by current; (2) The dielectric loss is small; (3) large insulation resistance; (4) Excellent discharge resistance; (5) has a certain degree of softness and mechanical strength; (6) Good insulation stability. read more

Sep 16,2019 News