Gerhard Petri Vilnius UAB

Nexans
e-paslaugos

Transition couplings for the connection of 6 and 10 kV plastic-insulated cables and three-conductor cables with oil-paper tape insulation and a common metallic sheath

Cable

The transition sleeve is designed to connect 6 and 10 kV three-conductor cables with oil-paper insulation (MI, MIND) in a common metal sheath and shielded single or three-conductor cables with plastic insulation.
E.g. ASB, AABU, PvPG, APvPG, TSLE, AHXAMK-W, AXCEL, N(A)2XSY, N(A)KBA.

Design of transition couplings with bolted connectors

From tape paper insulated cable to single core plastic insulated cable

Transparent Thermo shrinks, oil-resistant tubing shall be planted on the oil-paper insulated cores and conductive tubing shall cover the portion of each core from the root to the end of the screen. The root is filled with a yellow oil-resistant electric field control mastic and encapsulated by a conductive Thermo shrink glove with an adhesive layer and a conductive tube, which are planted on the end of the cores and the metallic sheath. In this way, the oil-paper insulated cable is transformed into a plastic insulated cable and the two cables are then connected accordingly. A yellow void-filling mastic shall be wrapped over the cut-off point of the semi-conductive shield of the plastic cable and the conductive tubes planted on the cores of the paper cable. The electric field control tubes shall be planted on the cores of the plastic cable. The cores shall be connected with the screw connectors included in the coupling kit and a wide EVM tape shall be wrapped over the top. A double-layered Thermo shrinks elastomeric tube shall provide the required insulation thickness and shielding over the insulation. The metal sheath, armour and metal shield of the plastic cable shall be bonded together using a non-solderable earthing fitting. A metallic tape wrapped over the sleeve shall shield the area of the stranding and provide additional mechanical protection for the sleeve. A Thermo shrink glove and a thick-walled tube with a thermosetting adhesive coating on the inner surface shall provide external protection and sealing of the coupling. For cables with aluminium foil shielding (e.g. AHXAMK-W), a fourth earth connection kit must be ordered.

From a taped paper insulated cable to a triple-core cable with plastic insulation

The transition sleeve is suitable for shielded and unshielded cables with plastic insulation. The design and installation of the sleeve shall be similar to that of the sleeve for single-core cables. Additionally, the set includes a non-solderable earth connection fitting for connecting different types of shields and armour. The coupling shall include screw connectors.

Transition coupling design without connectors

From tape paper insulated cable to plastic insulated cable

Transparent Thermo shrinks, oil-resistant tubing shall be planted on the oil-paper insulated cores and conductive tubing shall cover the portion of each core from the root to the end of the screen. The root is filled with a yellow oil-resistant electric field control mastic and encapsulated by a conductive Thermo shrink glove with an adhesive layer and a conductive tube, which are planted on the end of the cores and the metallic sheath. In this way, the oil-paper insulated cable is transformed into a plastic insulated cable and the two cables are then connected accordingly. A yellow void-filling mastic shall be rolled over the cut-off point of the semi-conductive screen of the plastic cable, over the conductive tubes planted on the cores of the paper cable and over the connectors. A thermoshrinking electric field control tube shall be planted on each of the conductor connection areas. The double-layered Thermo shrink elastomeric tube shall provide the required insulation thickness and shielding over the insulation. A copper mesh wrapped over the stranded area of the joint shall act as a metallic shield for the cable in the sleeve. The metallic sheath, armour and metallic screen of the plastic cable shall be bonded together using an unsoldered earth fitting. The external protection and sealing of the sleeve shall be provided by a thick-walled Thermo shrink tube with a layer of thermosetting adhesive on the inner surface. The sleeve for single-core plastic cables includes special sealing pins which ensure reliable sealing of the outer tube on single-core cables. Connectors are not included in the coupling set.




    Transition couplings with screw connectors

    Transition couplings for the connection of 6 or 10 kV single-core shielded plastic insulated cable and triple-core cable with oil-paper tape insulation and common metal sheath

    Rated voltage Uo/U (kV) Cross-section of the cores (mm²)
    For insulated cables
    Product code for ordering Dimensions (mm)
    L               D
    plastic paper With wire screen With strip display*
    3,5/6 ir 6/10 35-50 35-50 TRAJ 12/1x 35- 50 TRAJ 12/1x 35- 50-CEE01 950 90
    70-150 70-120 TRAJ 12/1x 70-120 TRAJ 12/1x 70-120-CEE01 950 120
    150-240 150-240 TRAJ 12/1×150-240 TRAJ 12/1×150-240-CEE01 950 140

    * Transition sleeves for cables with copper tape or aluminum foil shielding (e.g. AHXAMK-W).

    Transition couplings for the connection of 6 or 10 kV three-conductor shielded or unshielded cables with plastic insulation and three-conductor cables with oil-paper tape insulation and a common metallic sheath

    Rated voltage Uo/U (kV) Cross-section of the cores (mm²) Product code for ordering for plastic cables Dimensions (mm)
    L                D
    Without armor With wire armour
    3,5/6 ir 6/10 35-50 TRAJ 12/3x 35- 50 TRAJ 12/3x 35- 50-W 1050 90
    70-120 TRAJ 12/3x 70-120 TRAJ 12/3x 70-120-W 1250 120
    150-240 TRAJ 12/3×150-240 TRAJ 12/3×150-240-W 1250 140

    Additional solderless fitting kit for the connection of the transition sleeve TRAJ-CEE01 to the fourth earth core of single core plastic cables with aluminum foil shield (e.g. AHXAMK-W)

    Product code for ordering Grounding conductor dimensions
    Lenght (mm) Cross-section (mm²)
    SMOE 62600 800 35

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