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Post Requirements
Post Requirements
Product information
This product is suitable for fixed laying in AC 50Hz, rated voltage 35kV and below power transmission and distribution lines for electricity transmission. Compared with polyvinyl chloride insulated power cables, cross-linked power cable products not only have excellent electrical properties, mechanical properties, heat aging properties, environmental stress resistance and chemical corrosion resistance, but also simple structure, light weight, not limited by laying drop, long-term high operating temperature (90℃) and other characteristics. First, the production implementation standard GB/T12706.1-2002~ GB/T12706.3-2002 "Rated voltage 1kV (Um= 1.2kV) to 35kV (Um= 40.5kV) extruded insulated power cable", can also be according to user needs, Adopt the International Electrotechnical Commission IEC60502-1997 standard production. 1, the maximum allowable long-term operating temperature of the cable conductor is 90℃. 2, short circuit (maximum duration of not more than 5 seconds) the maximum temperature of the cable conductor does not exceed 250℃. 3. The ambient temperature of cable laying shall not be lower than 0℃. 4, the minimum bending radius of the cable: the three-core cable is not less than 15 times the outer diameter of the cable; The single-core cable is not less than 20 times the outer diameter of the cable. 5, the power frequency rated voltage U0/U is 0.6/1kV~26/35kV. U0: the rated power frequency voltage between the conductor to the ground or the metal shield used in the cable design, called the phase voltage; U: Rated power frequency voltage between conductors used in cable design, called line voltage; Um: The maximum value of the "maximum system voltage" that the device can withstand. Copper aluminum YJV YJLV cross-linked polyethylene insulation polyvinyl chloride sheathing power cables are laid in indoor, tunnel, cable trench and pipeline, can also be buried in loose soil, the cable can not withstand mechanical external force. Single-core cables are not allowed to be laid in magnetic pipes. YJY YJLY XLPE insulated polyethylene sheathed power cable YJV22 YJLV22 XLPE insulated steel tape armored PVC sheathed power cable directly buried in the ground (buried depth: ≥0.7m from the ground), the cable can withstand a certain mechanical external force, but can not withstand large tension. YJV23 YJLV23 Crosslinked polyethylene insulated steel tape armoured polyethylene sheathed power cable Note: 1, according to user needs, can provide steel wire armoured type crosslinked power cable, such as: YJV32, YJLV32, YJV33, YJLV33. 2, the need for flame retardant cable, should be in the original model before adding "ZR-" said.
