When the cable is used, there are formulas such as YC3 * 25 + 1 * 10 and YC3 * 35 + 1 * 16. Want to know what the numbers are meant to mean (meaning)? Question added: What are the specifications of the cable, there are several different cross-sectional area of the copper wire.
Y is a permanent ferrite material, C is an alkyd impregnated, 3 * 25 + 1 * 10 represents three 25 mm square and a 10 cm square wire consisting of a four-core cable YC3 * 35 + 1 * 16 is also an alkyd Permanent magnet ferrite material is a specification model, remember on the line! Commonly used models are: 3 * 35 + 1 * .3 * 35 + 1 * .3 * 50 + 1 * .3 * 70 + 1 * .3 * 90 + 1 * .3 * 90 + 1 * . a lot of ah advice to find an electrical manual, special! The The
. a variety of YJV cable diameter, as shown below: . YJV cable, the required diameter, at least to meet the cable diameter of 1.5 times. Or YJV cable area, can not exceed 40% of the cable casing area. YJV wire and cable, that is, 0.6 / 1kv XLPE insulated PVC sheathed power cable. This product for the rated voltage (U0 / U) 0.6 / 1 --- 26 / 35kv power line transmission and distribution, the product standard GB.3-91. The maximum rated temperature of the cable conductor is 90 ° C, the shortest circuit (the longest duration does not exceed 5S), and the maximum temperature of the cable conductor does not exceed 250 ° C.
Power is not necessary, then do not have to consider, the back-end regulator is not strict, then do not have to consider. You are not specific enough.
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