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Performance Index Of Low Voltage Cable Oct 25, 2017



Low-voltage cables are generally used in connection with the material divided into two categories of copper and aluminum single material only by copper or aluminum to take over the need to be one wire twice times, Low Voltage XLPE Insulated Electric Cable if the cable material needs to use excessive copper-aluminum wiring pipe or the nose need to be fastened with bolts, of course, can also be used wire rope 3 angle lock; The line insulation of the cable is treated in a heat shrink. The latter because of the use of wire rope 3 angle locking wire connection head too large, Low Voltage XLPE Insulated Electric Cable so deal with trouble only as there is no pressure clamp or high altitude use. Now there is a high pressure self-adhesive in the market to deal with the more convenient. Low Voltage XLPE Insulated Electric Cable In addition to the need for a better bolt fixed galvanized, to prevent poor conductivity.

Low voltage cable common basic model:

vv----PVC Insulated PVC sheathed (copper core) power cable;

yjv---XLPE insulated PVC sheathed (copper Core) power cable. If it is (aluminum conductor) conductor, then the Middle plus l, namely VLV, YJLV, flame-Retardant cable, then add ZR, namely ZR-VV, zr-yjv; fire-resistant cable, in front plus n (or NH), that is NH-VV, NH-YJV, no halogen low smoke, model for WD-YJY, Low Voltage XLPE Insulated Electric Cable crosslinked polyethylene insulated polyolefin sheath; The above functions are combined to include:

wdzan-yjy-(Halogen-free low smoke) cross-linked polyethylene insulated polyolefin sheath, A-class flame-retardant fire-resistant power cable. Also: pre-branched cable, plus f (or YF);

Irradiation cross-linked cable, plus FZ;

Rubber sheathed cable, YQ, YZ, YC (YQW, YZW, YCW), respectively, light, medium and heavy. There are many types, such as fire-resistant cable (mineral insulated cable), and so on, general occasions. Spec.: line diameter is 1.5, 2.5, 4, 6, 10, 16, 25, 35, 50, 70, 95, 120, 150, 185, 240, 300, etc.

The cable has multiple combinations of single core and multi-core, commonly used is 3, 4, 5 cores, of which 4, 5 core diameter and unequal diameter, that is, often said 4 core, 5-core corresponding $number and $number or $number, unequal diameter cable n line, PE line according to national standards, such as 4*185+1*95 or 3*185+2*95.

Low voltage cable is mainly suitable for AC rated voltage $number and the following high flame retardant power equipment lighting circuit. (2) Cable flame-retardant Performance index: Oxygen index ≥30 (3) cable long-term operating temperature should not exceed 70 ℃ (4) cable laying, Low Voltage XLPE Insulated Electric Cable the temperature should not be less than 0 ℃, bending radius is not less than 10 times times the diameter of the cable.