The joint has insulating joint and straight through joi nt with integral pre-fabricate structure, which is protected with insulating copper shell of high strength after installation, and then pouring waterproof insulating mastic inside the copper shell to integrate. Glass fiber reinforced plastic protective box can be added according to the requirements of the running environment, pouring waterproof insulating mastic inside to guarantee the joint running reliably and safely in the harshenvironment of waterlogging, high corrosion and so on for a long term.
Insulating joint is suitable for the connection of long cable lines, making the cable metal sheath and insulating shield disconnected electrically and in order to facilitate them grounding or protective earthing of crossover interconnection; straight through joint is suitable for the connection of short cable lines. It can be installed to run in the environment of cable duct, tunnel or direct underground and so on.
Technical specification:
|
Item |
Parameter |
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Rated voltage U0/U |
64/110kV |
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Highest operating voltage Um |
126kV |
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Impulse voltage withstand level |
550kV |
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Conductor connection mode |
crimping |
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Operative standard |
GB/T 11017.3 IEC60840 |
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Item |
Parameter |
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Joint body |
integral pre-fabricated structure |
|
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Protection box |
copper lug applied with PE, filled with |
|
|
waterproof sealing mastic insidewith |
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Metal protecting case of |
a)direct voltage: 25KV |
|
|
insulating joint |
b)impulse voltage:75KV |
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|
Weight |
about 80kgs |
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Suitable for cable section area |
240mm2 to 1600mm2 |
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