Energotek KTP three-phase transposition link boxes
Polymer, watertight, up to 500 kV
For cable screen transposition
Fully assembled transposition units are available for site delivery – including a compact cross-bonding manhole with a three-phase Energotek KTP-T box pre-installed and Energotek PPS connecting cables pre-routed.
We recommend purchasing corrosion-resistant RM-T mounting frame for quick installation of transposition link boxes in monolithic reinforced concrete manholes and its reliable fixation with no drilling the manhole body.
(at least 50 years)
Key advantages
- Reliable sealing against moisture ingress (IP68 protection rating according to GOST 14254-2015)
- Electrically safe body that does not require grounding
- Corrosion resistance
- Fire-proof
- Installation without opening the boxes
- Testing of cable sheaths with a constant voltage of 10 kV without disconnecting surge arresters
- Compact design
- Light weight
02 Application area
Транспозиция экранов кабелей классов номинального напряжения
Intended for 6–500 kV cable screen transposition and outer sheath protection using surge arresters. Polymer housing of boxes is resistant to corrosion, dielectric, requires no grounding – ensuring personnel electrical safety even with poor grounding loops.
Three-phase polymer transposition link boxes Energotek KTP-T are installed::
- In special polymer cross-bonding manholes ProtectorFlex® PKET-1500
- In monolithic reinforced concrete manholes
- In cable tunnels
- On trestle structures
- By other agreed methods
Fully assembled transposition units are available for site delivery – including a compact cross-bonding manhole with a three-phase Energotek KTP-T box pre-installed and Energotek PPS connecting cables pre-routed.
We recommend purchasing corrosion-resistant RM-T mounting frame for quick installation of transposition link boxes in monolithic reinforced concrete manholes and its reliable fixation with no drilling the manhole body.
RM-T mounting frame for installation of transposition link boxes03 Product range of Energotek KTP-T transposition link boxes
| Product name | Description |
| Cross-bonding link box Energotek KTP-T/OPN-8.2-550 |
Polymer three-phase cross-bonding link box with surge arrester, operating voltage 8.2 kV and current passing capacity 550 A |
| Cross-bonding link box Energotek KTP-T/ZML |
Polymer three-phase сross-bonding link box with no surge arrester for cross-bonding screens at adjacent cycles joints |
04 Main technical properties of Energotek KTP-T three-phase transposition link boxes
| Properties | Value |
| Overall dimensions WxHxD, mm | 190х420х300 |
| Weight, kg | Maximum 17 |
| Protection against dust and damp | IP68 according to GOST 14254-2015 |
| Box climatic category | UHL, category 1 |
05
Standart
documentation
- TU 27.33.13-027-39082310-2025
06
Example wording for categories
or technical specifications:
- Cross-bonding link box ENERGOTEK KTP-T/OPN-8.2-550 TU 27.33.13-027-39082310-2025
Three-phase polymer watertight cross-bonding link box with surge arrester, operating voltage 8.2 kV and current carrying capacity 550 A - Cross-bonding link box ENERGOTEK KTP-T/ZML TU 27.33.13-027-39082310-2025
Cross-bonding link box for cross-bonding screens between transposition cycles, three-phase, polymer, watertight
07 Accessories
Energotek PPS bonding cable (PE insulated)
Connecting, flexible, watertight, flame-retardant
For bringing out screens of single-phase 6–500 kV cables
