JKLGYJ overhead line 35KV JKLGYJ-35KV-240/30 35KV overhead insulated line manufacturer direct sales

Description :

The representation method of overhead insulated cables:

　　JK -------- Overhead

　　T --------- Copper core (generally omitted)

　　L - Aluminum core

　　LH aluminum alloy core

　　YJ - Cross linked polyethylene insulation

　　Y---------- Polyethylene insulation

　　2、 Product Production Execution Standards:

　　GB/T12527-2008 "Overhead Insulated Cables with Rated Voltage of 1KV and Below"

　　GB/T14049-2008 "Overhead Insulated Cables with Rated Voltage of 10KV and 35KV"

　　3、 Product performance:

　　Conductor: The conductor is a tightly compressed circular stranded conductor.

　　Conductor shielding insulation material: The conductor shielding material is made of semi conductive shielding material, which is uniformly extruded on the conductor, with a smooth surface, no obvious twisted wire protrusions, sharp corners, particle burning or scratches, etc; The insulation adopts cross-linked polyethylene or polyethylene overhead insulation material, which is evenly extruded on the conductor shielding layer. The insulation surface should be flat, with uniform color and no scratches.

　　The insulation of the product must pass the GB/T3048.5 product withstand voltage test inspection.

　　4、 Product Features:

　　The temperature for cable laying should not be lower than 0 ℃

　　The duration of the short circuit shall not exceed 5 seconds; the temperature of the cable; Polyethylene insulation at 160 ℃, cross-linked polyethylene insulation at 250 ℃

　　The long-term allowable working temperature for cable conductors should not exceed 70 ℃ for polyethylene insulation and 90 ℃ for cross-linked polyethylene insulation

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