Junction couplings

High-Voltage 110 kV – 220 kV MSPs and MSTs

Rated voltage

110 or 220 kV

Operating conditions

-40...+60 °С

Designed for connecting high-voltage cables with aluminum or copper conductors and cross-linked polyethylene insulation, rated from 110 to 220 kV. The joints provide electrical insulation and a sealed connection, preventing current leakage and ensuring safe power transmission, which is achieved through the heat-shrinkable material forming the core of the cable joint.

Specifications

Details

Joints are manufactured with various designs of screens and metallic sheaths: versions without screen separation (MSP) and with screen separation (MST). The joint housing is made of durable material, and the sealing materials included in the kit provide waterproofing and corrosion protection. To level the electric field, a rubber stress cone (temperature range from -40°C to +60°C) or a silicone stress cone (temperature range from -60°C to +50°C) is used. The joint design includes an optional fiberglass-reinforced housing filled with a two-component resin, which serves for sealing the connection and ensuring the joint’s waterproofness. Durable and high-quality materials ensure a long service life without the need to replace or maintain the joints.

Technical Specifications:

MSP-110, MST-110

Maximum operating voltage Uₘ, kV: 126
Rated voltage U, kV: 110
Lightning impulse voltage, kV: 550
Test voltage (15 min.), kV: 160
Conductive core cross-sections, mm²: 240–1600
Prepared cable insulation diameter range, mm: 56–86
Maximum cable sheath diameter, mm *: 120

MSP-220, MST-220

Maximum operating voltage Uₘ, kV: 252
Rated voltage U, kV: 220
Lightning impulse voltage, kV: 1050
Test voltage (15 min.), kV: 254
Conductive core cross-sections, mm²: 400–1600
Prepared cable insulation diameter range, mm: 80–116
Maximum cable sheath diameter, mm *: 150

*More detailed specifications can be found in the catalog - DOWNLOAD FULL CATALOG

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