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Jiangsu Shitate Intelligent Power Co.,LTD.
E-Mail: sttxs@jsshitate.com
Telephone: +86-18852493399
Telephone: +86-18626077857
Address: No. 5 Datian Road, Guanlin Town, Yixing City
66~110kV Integral prefabricated insulation/ straight through intermediate joint
Description

Product Features
The main insulation of the product is the integral prefabricated structure, the high pressure shielding, the stress cone and the insulation piece are injected into a whole piece, the structure is simple, and the installation is convenient.
The outer shielding layer of the main insulating piece is made of semi conductive silicone rubber, so as to avoid the defect that the spraying surface is easy to be damaged.
The shell is made of high strength copper shell protection box, high mechanical strength, good sealing performance.
The main insulation parts have been tested in the factory according to the standard.
Products Comply With The Following Standards
GB/T 11017.3-2014 Power cables with cross-linked polyethylene insulation and their accessories for rated voltage of 110kV (Um=126kV). Part 3: Accessories
IEC 60840-2011 Power cables with extruded insulation and their accessories for rated voltages above 30kV (Um=36kV) up to 150kV (Um=170kV). Test methods and requirements
Main technical parameters
| Item | Technical parameters |
| Rated voltage and frequency | 64/110kV, 50Hz |
| Max peration voltage | 126kV |
| Environment temperature | -40℃~+40℃ |
| Rated operating temperature of conductor | 90℃ |
| Max temperature of cable conductor at short circuit | 250℃ |
| The cross section of the cable shall apply | 240~1600mm² |
| Partial dischange test (at ambient temperature, 96kV) | NO ddelectable discharge at the declared sensitivity (5pC or better) |
| Heating cycle voltage test (128kV, 95℃~100℃, heating 8h, cooling 16h) | Completed 20 cycles |
| Partial dischange test (at high temperature, 96kV) | NO ddelectable discharge at the declared sensitivity (5pC or better) |
| Impluse voltage test followed by a power frequency voltage test - Impluse voltage test (95℃~100℃, ±550kV, 10times, respectively) - Power frequency voltage test (160kV, 15min) |
NO breakdown or flashover NO breakdown or flashover |
|
Test of outer protection for buried joints Voltages tests Impulse voltage tests |
NO breakdown or flashover NO breakdown or flashover |
Product size

Keyword:
66~110kV Integral prefabricated insulation/ straight through intermediate joint
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