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TCJ transmission cable joints are designed for 46 kV through 138 kV class systems on solid dielectric cables.

The void-free joint housing consists of peroxide-cured EPDM insulation bonded under pressure to peroxide-cured molded semi-conductive elements.

The continuous current rating of TCJ transmission cable joints is equal to the cable's continuous rating.

The minimum corona extinction voltage for a 138 kV class joint is 120 kV (3 pC sensitivity).

The BIL rating for a 69 kV class TCJ joint is 350 kV (1.2 x 50μs; 10 pos., 10 neg., impulses).

The maximum continuous conductor temperature for TCJ joints is 90 °C.

The maximum system voltage for a 138 kV class TCJ joint is 145 kV.

The maximum system voltage for a 69 kV class TCJ joint is 72.5 kV.

They are suitable for direct-burial or vault applications, providing permanent, fully shielded, and fully submersible cable joints.

For Style 1 (through 69 kV), insulation diameters are 1.43 inches to 2.58 inches. For Style 4 (through 138 kV), they are 2.25 inches to 3.62 inches.

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