Commonly used power cables can be divided into copper core cables and aluminum core cables according to the conductor material. What are the models of copper core power cables? The following will introduce the models and specifications of copper core power cables and the characteristics of power cables.
I. Representation of copper core power cables
The letter T represents copper cable, but it is generally omitted. For example, YJV cable has T omitted.
II. Models and specifications of copper core power cables
The specifications of copper core cables include single core, double core, five core, three plus two core, etc. Among them, the specifications of single core copper core cables range from 1 square to 500 square. The models of copper core cables include YJV, YJV22, VV, VV22, NH-YJV, YJY...
III. Product characteristics of copper core power cables
(1) Rated voltage Uo/U is 0.6/1kV.
(2) The maximum rated temperature of the cable conductor is 90℃.
(3) When short-circuited (the maximum duration does not exceed 5S), the maximum temperature of the cable conductor does not exceed 250℃.
(4) The ambient temperature during cable laying should not be lower than 0℃, and the minimum bending radius is as follows:
Single-core unarmored cable: 20D
Single-core armored cable: 15D
Three-core unarmored cable: 15D
Three-core armored cable: 12D
(Note: D is the outer diameter of the cable)
IV. Power cable armor symbol
The letter code followed by a suffix such as 92 is armored cable. For example: YJVZRYJV22, etc. Its specific meaning: 22 double steel tape wrapped armored PVC sheathed cable. The armored cable has two digits after the model number, the first of which is the armor code: 2 for double steel tape armor, 3 for fine round steel wire armor, 4 for fine round steel wire armor, and 6 for non-magnetic metal tape armor.
