Excuse me, what is the difference between submarine power cables and general buried power cables? What is the difference between the calculated current carrying capacity of the submarine power cable and the general calculation of the current carrying capacity of the cable? More
Low voltage and wire aging has nothing to do with the cross-section of the wire, the cross-section is small, then the resistance of the wire is large, the pressure drop is large, the user's voltage will be reduced, but also with the wire and wire connection resistance, contact resistance Large, but also cause the user to drop the voltage, low voltage and the aging of the wire has an indirect relationship, the wire aging, that there is a certain history, and in recent years, rising living standards, household appliances also increased, with the time Increased, the power has increased, relative to the wire is concerned, is overwhelmed, so the line is often the place where the line voltage is very low
Submarine cables and ordinary power cables are used for power transmission, the general power cable in general steel armored after squeezing the outer jacket can be, the submarine cable in the outer jacket outside the cover and mixed with asphalt Steel armor layer to increase the mechanical strength and corrosion resistance when laying. Electrical technical parameters and the same as the ordinary power cable, the main consideration to provide cable laying when the submarine channel conditions and the sea environment. Another large length of the submarine power cable also consider the cable intermediate connector technology is reliable (in case of accidental damage or body failure). The difference between the submarine cable and the cable are said, if the need for submarine cable, in addition to the basic provision of electrical performance and other parameters need to provide laying environmental factors such as buried depth, sea water temperature, sea soil thermal resistance coefficient The
1 TV inside the 400V filter capacitor damage 2 audio and video cable connection is not good or poor quality 3 you put the TV volume dots, set-top box volume can be improved
It is the audio cable connection is not good, you check the line and the machine at both ends of the socket is rusty, for the new line can be. In addition, the TV volume will be reduced, the set-top box volume can be filled!
