Circulating Currents | Screen Break MV Cable Joints for 33kV Cables

Published 22 Sep 2020

“If you are encountering issues with circulating currents or standing voltages on extended circuit lengths of single core MV cables up to 33kV there is now a solution from Nexans to help control these unwanted and potentially dangerous issues by installing GTSIS.W screen break joints – these cable joints enable you to cross bond the screens of all three circuits in a safe manner that has been Tested and Certified to Cenelec HD 629.1 S2 & IEC 60502-4.

The screen break joints can help control circulating currents on medium voltage power systems and can accommodate MV cables up to 42kV using either compression or mechanical connectors – the joints do not eliminate circulating currents but they sufficiently reduce them to a safer and more manageable level (cable rating wise).

Contact Thorne & Derrick, the Main UK Distributor and Channel Partner for further information today.”

• By David Rockall | Business Development Manager at Nexans Power Accessories (UK) Ltd

Screen Break Joints 

Utilising heat shrink technology the GTSIS.W range of straight joints are compatible with unarmoured single core polymeric insulated cables with copper wire screens (35-1000sqmm) up to 33kV (42kV). Further Information here.

More from Nexans

• Nexans Euromold Screened Separable Connectors | Approval for Supply Within SSE’s Networks Business
• Nexans Euromold Connectors : EPDM Rubber Screened Separable Connectors For Medium Voltage Cables
• Facilitating Sensor Installation In Power Networks By Nexans MV Power Cable Accessories
• 66kV Connectors, Cables & Junctions Boxes – An Interview With Nexans
• Jointer Training Courses – 11kV 33kV 66kV Medium & High Voltage Jointer Competency Training
• 66kV Cable Jointer Training – A Question Of Competency Not Familiarisation

MV Cable Joints

Nexans NEW PRODUCT Launch

JST | Reliability & Safety at Reduced Cost – a modern generation of MV Heat Shrink Joint has been developed by Nexans for the UK utility and contracting industry – the primary application is for the jointing of 11kV BS7870 Triplex type medium voltage cables. The JTS cable jointing system now provides the most cost-competitive option to power contractors: the cable joints manufactured by Nexans, “The Global Expert in Cables & Cable Systems” are tested in accordance to CENELEC HD629.1.

LV, MV & HV Jointing, Earthing, Substation & Electrical Eqpt

Thorne & Derrick International are specialist distributors of LV, MV & HV Cable Installation, Jointing, Duct Sealing, Substation & Electrical Equipment – servicing UK and global businesses involved in cable installations, cable jointing, substation, overhead line and electrical construction at LV, 11kV, 33kV and EHV.

THORNE & DERRICK Product Categories: Duct Seals | Cable Cleats | Cable Glands | Electrical Safety | Arc Flash Protection | Cable Jointing Tools | Cable Pulling | Earthing | Feeder Pillars | Cable Joints LV | Joints & Terminations MV HV 

Further Reading

• Circulating Currents Screen Break MV Cable Joints for 33kV Cables Size: 1.90 MB
• JTS Joints – Technical Specifications Approvals Testing & Capability Size: 9.98 MB