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Severe Defects Missed By Tangent Delta Testing – read how IMCORP”s Factory Grade® Technology can help cable owners pinpoint these problems

Tangent Delta Tests

Guest Article: IMCORP by Ben Lanz & Dr. Wayne Chatterton 

uploaded by Chris Dodds - Thorne & Derrick Sales & Marketing Manager

A utility client requested IMCORP to proactively assess their cables in a downtown area feeding a convention center. A nationally televised event was coming to town so naturally the reliability of the downtown power grid and avoiding an image-damaging power outage was of utmost importance.

The IMCORP Factory Grade® technology provided a meter-by-meter profile and pinpointed many issues with the cable systems feeding the convention center. The utility was surprised with how many components did not meet the cable and accessory manufacturers’ minimum performance standards. While the utility was greatly concerned and intended to make repairs prior to the upcoming event, they decided to get a second opinion with a different type of test called a VLF tan delta (tangent delta, TD) test.

Full article: ➡  Read more here………..

IMCORP

The Cable Experts | Medium & High Voltage Power Cable Systems

IMCORP is the technology leader in Medium & High Voltage Power Cable Systems life cycle condition assessment and performance – IMCORP have been helping their clients achieve maximum cable reliability for more than 20 years and have assessed over 130,000 5kV to 500kV cable systems spanning in excess of 160 million feet.

IMCORP Precision Reliability^TM approach integrates asset condition intelligence into optimized work management processes to maximize cable system reliability at the lowest possible life cycle cost.

Thorne & Derrick have curated this Twitter Moment to recognise the Global Cable Expert status of IMCORP – we are both honoured and humbled to be able to share our expertise and networks effectively to communicate our message to the broadest audience achievable.

Click the Tweet links for deeper reading.

Top 10 Tweets

1. Misplaced Stress Relief Exposing Semicon Screen Cutback On Cold Shrink Terminations
2. Identifying Substandard Performance Of Premolded Dead Front MV Tee-Connectors
3. Power System – Feeder Cable Joint Failures Leads To Jointing Instruction Improvement
4. Identifying Workmanship Installation & Cable Joint Issues At A Solar Site
5. Failing Cable Joints Caused By Poor MV HV Cable Preparation Of Semicon Screen
6. How Do HV Cables Fail – 10 Defects Causing High Voltage Power Cable Outages
7. Failing Cable Joints – Partial Discharge (PD), High Voltage Stress & Cable Joints
8. Improper Stress Control Installation On Medium & High Voltage Power Cables & Systems
9. Power Cable Damage From Backfill – Medium Voltage Cable Case Study
10. Medium Voltage Cable Termination Suffers Partial Discharge (PD) – Cause & Remedy

MV HV Power Cable System Reliability Solutions by IMCORP

 💡 Read our Guest Blog with IMCORP  ➡

The Semicon Screen – A Most Critical Point In Any MV Joint, Termination Or Connector

Thorne & Derrick

T&D are Specialist Distributors to UK Distribution Network Operators (DNO’s), NERS Registered Service Providers, ICP’s and HV Jointing Contractors of an extensive range of LV, MV & HV Jointing, Earthing, Substation & Electrical Eqpt – this includes 11kV/33kV/66kV cable joints, terminations and connectors for both DNO and private network applications.

Contact our UK Power Team for competitive quotations, fast delivery from stock and technical support or training on all LV-HV products.

All international sales enquiries can be serviced and supplied by our Export Power Team.

Key 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 

Nexans MONOe Heat Shrink Termination | XLPE Outdoor Single Core 12kV 24kV 36kV MV

Cable Terminations | Heat Shrink | Cold Shrink | Push-On | MV HV Medium & High Voltage

Cable Terminations

Nexans MONOe are single core heat shrink cable terminations for use outdoor and specified to terminate and connect medium/high voltage cables in the following voltage classes:

• 6/10 (12) kV
• 6.35/11 (12) kV
• 8.7/15 (17.5) kV
• 12/20 (24) kV
• 12.7/22 (24) kV
• 18/30 (36) kV
• 19/33 (36) kV

Nexans MONO type MV cable terminations are heat shrink terminations consisting of a single-piece heat shrink tube – the anti track tube features integral stress control co-extruded into the heat shrink tubing suitable for terminating single core polymeric insulated cables, such as XLPE or EPR, with working voltage classes of 11kV, 24kV and 33kV.

Both Nexans MONOi (Indoor Termination) and MONOe (Outdoor Termination) contain sufficient material to terminate 3 single core cables i.e. 3 phase cable termination kits.

Nexans MONOe Heat Shrink Termination

Nexans MONOe

MV HV Heat Shrink Outdoor Cable Terminations

Up To 33kV

The following table enables the selection of Nexans MONOe heat shrink terminations for 11kV, 24kV and 33kV voltage cables:

Nexans

Thorne & Derrick distribute the complete range of medium/high voltage electrical equipment manufactured by Nexans – this includes Euromold bushings for use with oil fluid or gas insulated switchgear or transformers and associated screened separable connectors according to both IEC (Euromold) and IEEE (Elastimold) for the termination, connect+disconnect of MV-HV cables onto power distribution systems. To protect power systems against high voltage surges resulting from lightning or switching a complete range of surge arresters are available to be used with Euromold connectors in 11kV/12kV, 24kV and 33kV/36kV voltage classes.

Thorne & Derrick

Nexans Main UK Stockist & Distributor

Contact us for Competitive Prices & Fast Delivery from Stocks for Heat Shrink, Cold Shrink & EPDM Rubber Connectors, Joints & Terminations up to 66kV.

Go to our Price List and contact us with your enquiries.

Heat Shrink Cable Accessories for 11kV Triplex Cables

Thorne & Derrick International are specialist distributors of LV, MV & HV Cable Accessoies, Jointing, Substation & Electrical Equipment – servicing UK and global businesses involved in cable installations, jointing, substation, overhead line and electrical construction at LV, 11kV, 33kV, 66kV and EHV.

Stocking & Supplying | Duct Seals | Cable Cleats | Cable Glands | Electrical Safety | Arc Flash Protection | Jointing Tools | Cable Pulling Eqpt | Earthing & Lightning Protection | Feeder Pillars | Cable Joints LV | Joints & Terminations MV HV

Euromold MV HV | Cable Terminations, Connectors, Elbows & Joints

Nexans MONOi Heat Shrink Termination | XLPE Indoor Single Core 12kV 24kV 36kV MV

Cable Terminations | Heat Shrink | Cold Shrink | Push-On | MV HV Medium & High Voltage

Cable Terminations

Nexans MONOi are single core heat shrink cable terminations for use indoor and specified to terminate and connect medium/high voltage cables in the following voltage classes:

• 6/10 (12) kV
• 6.35/11 (12) kV
• 8.7/15 (17.5) kV
• 12/20 (24) kV
• 12.7/22 (24) kV
• 18/30 (36) kV
• 19/33 (36) kV

Nexans MONO type MV cable terminations are heat shrink terminations consisting of a single-piece heat shrink tube – the anti track tube features integral stress control co-extruded into the heat shrink tubing suitable for terminating single core polymeric insulated cables, such as XLPE or EPR, with working voltage classes of 11kV, 24kV and 33kV.

Both Nexans MONOi (Indoor Termination) and MONOe (Outdoor Termination) contain sufficient material to terminate 3 single core cables i.e. 3 phase cable termination kits.

Nexans MONOi Heat Shrink Termination

Nexans MONOi

MV HV Heat Shrink Indoor Cable Terminations

Up To 33kV

The following table enables the selection of Nexans MONOi heat shrink terminations for 11kV, 24kV and 33kV voltage cables:

Nexans

Thorne & Derrick distribute the complete range of medium/high voltage electrical equipment manufactured by Nexans – this includes Euromold bushings for use with oil fluid or gas insulated switchgear or transformers and associated screened separable connectors according to both IEC (Euromold) and IEEE (Elastimold) for the termination, connect+disconnect of MV-HV cables onto power distribution systems. To protect power systems against high voltage surges resulting from lightning or switching a complete range of surge arresters are available to be used with Euromold connectors in 11kV/12kV, 24kV and 33kV/36kV voltage classes.

Thorne & Derrick

Nexans Main UK Stockist & Distributor

Contact us for Competitive Prices & Fast Delivery from Stocks for Heat Shrink, Cold Shrink & EPDM Rubber Connectors, Joints & Terminations up to 66kV.

Go to our Price List and contact us with your enquiries.

Heat Shrink Cable Accessories for 11kV Triplex Cables

Thorne & Derrick International are specialist distributors of LV, MV & HV Cable Accessories, Jointing, Substation & Electrical Equipment – servicing UK and global businesses involved in cable installations, jointing, substation, overhead line and electrical construction at LV, 11kV, 33kV, 66kV and EHV.

Stocking & Supplying | Duct Seals | Cable Cleats | Cable Glands | Electrical Safety | Arc Flash Protection | Jointing Tools | Cable Pulling Eqpt | Earthing & Lightning Protection | Feeder Pillars | Cable Joints LV | Joints & Terminations MV HV

Euromold MV HV | Cable Terminations, Connectors, Elbows & Joints

Nexans SPDF Heat Shrink Termination | PILC PICAS Outdoor 3 Core 12kV MV Cables

Cable Terminations 11kV 33kV | Single & 3 Core | Medium & High Voltage Cables MV HV

Cable Terminations

Nexans SPDF are 3 core heat shrink cable terminations for use outdoor and specified to terminate and connect medium/high voltage cables in the following voltage classes:

• 6/10 (12) kV
• 6.35/11 (12) kV

Heat shrinkable 11kV-33kV Nexans 3-core termination kits, suitable for medium voltage paper (PILC) insulated cables within an outdoor environment widely used by power utilities and in industrial applications.

Nexans SPDF Heat Shrink Termination

11kV Terminations 3 Core Cables

1. Cable Lugs (Cembre Crimp Lugs or Pfisterer Sicon Mechanical Lugs)
2. Water Sealing Mastic
3. Anti Tracking Heat Shrink Tube (Red)
4. Anti Tracking Sheds (outdoor terminations only)
5. Stress Control Heat-Shrinkable Tube (Black)
6. Stress Control Mastic
7. 3 Core Heat Shrink Cable Break-out
8. Oil Barrier Tube
9. Anti-tracking tri-shed

Nexans SPDF Heat Shrink Termination Specification

The following tables enable the selection of indoor cable terminations using Heat Shrinkable technology manufactured by Nexans:

Nexans

Thorne & Derrick distribute the complete range of medium/high voltage electrical equipment manufactured by Nexans – this includes Euromold bushings for use with oil fluid or gas insulated switchgear or transformers and associated screened separable connectors according to both IEC (Euromold) and IEEE (Elastimold) for the termination, connect+disconnect of MV-HV cables onto power distribution systems. To protect power systems against high voltage surges resulting from lightning or switching a complete range of surge arresters are available to be used with Euromold connectors in 11kV/12kV, 24kV and 33kV/36kV voltage classes.

Key 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 

 ➡ Read: Thorne & Derrick Announce Distribution Agreement & Contract With Nexans 

Nexans SPDI Heat Shrink Termination | PILC PICAS Indoor 3 Core 12kV MV Cables

Cable Terminations 11kV 33kV | Single & 3 Core | Medium & High Voltage Cables MV HV

Cable Terminations

Nexans SPDI are 3 core heat shrink cable terminations for use indoor and specified to terminate and connect medium/high voltage cables in the following voltage classes:

• 6/10 (12) kV
• 6.35/11 (12) kV

Heat shrinkable 11kV Nexans 3-core termination kits, suitable for medium voltage paper (PILC) insulated cables within an indoor environment widely used by power utilities and in industrial applications.

Nexans SPDI Heat Shrink Termination

11kV Terminations 3 Core Cables

1. Cable Lugs (Cembre Crimp Lugs or Pfisterer Sicon Mechanical Lugs)
2. Water Sealing Mastic
3. Anti Tracking Heat Shrink Tube (Red)
4. Anti Tracking Sheds (outdoor terminations only)
5. Stress Control Heat-Shrinkable Tube (Black)
6. Stress Control Mastic
7. 3 Core Heat Shrink Cable Break-out

Nexans SPDI Heat Shrink Termination Specification

The following tables enable the selection of indoor cable terminations using Heat Shrinkable technology manufactured by Nexans:

Nexans

Thorne & Derrick distribute the complete range of medium/high voltage electrical equipment manufactured by Nexans – this includes Euromold bushings for use with oil fluid or gas insulated switchgear or transformers and associated screened separable connectors according to both IEC (Euromold) and IEEE (Elastimold) for the termination, connect+disconnect of MV-HV cables onto power distribution systems. To protect power systems against high voltage surges resulting from lightning or switching a complete range of surge arresters are available to be used with Euromold connectors in 11kV/12kV, 24kV and 33kV/36kV voltage classes.

Key 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 

 ➡ Read: Thorne & Derrick Announce Distribution Agreement & Contract With Nexans