Cable Joints & Terminations HV

PFISTERER CONNEX Size 4 | HV High Voltage Cable Jointer Training

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

Call T&D to discuss your requirements for PFISTERER CONNEX Size 4 Training – the Jointer Training Courses can be booked with Thorne & Derrick by calling 0191 4104292 (contact Martin Wigham) – successful attendees will become qualified up to 72.5kV for the installation of PFISTERER CONNEX Size 4 cable terminations.

Trainees will learn how to terminate cables and install Size 4 CONNEX inner cone cable terminations using modern high voltage cable preparation tools and utilising Alroc tools.

• Course Duration: 1.5 Days
• Course Location: Sheffield UK
• Course Booking & Costs: Call 0191 4104292

➡ 33kV Training: PFISTERER Courses – Jointer Training For MV CONNEX Connectors

Thorne & Derrick Working With PFISTERER

Read our Blog  ➡ PFISTERER CONNEX Training & Visit For Thorne & Derrick

Thorne & Derrick Stock & Supply PFISTERER CONNEX Connectors – call us for a quotation.

What Is CONNEX?

The Plug-in Connection System for Power Transformers and Gas-Insulated Switchgear

CONNEX is a high voltage pluggable cable termination system for all voltage levels up to 550kV – the Size 4 CONNEX Training Courses provide Competency to the Jointer to carry out the installation of PFISTERER CONNEX connectors up to 72.5kV (typically power and cable networks operating at 66kV).

Image Credit: Lee Roberts RLA Solutions Ltd.

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 joints, terminations and connectors for both DNO and private network applications.

Pictured opposite: Recently the Thorne & Derrick team benefited from watching and learning from Jon Reed ((PFISTERER Cable Accessories Trainer) – with an amazing skill-set, Jon demonstrated mastery of “the semicon-screen cut“, the cable chamfer and overall cable preparation perfection when installing CONNEX connectors.

Contact us at Thorne & Derrick for all your HV Jointing Materials & Jointer Training Services required. 

Cable Jointing & Pulling Equipment

Cable Blowers | Cable Lubricant | Duct Rods | Cable Socks | Cable Jacks | Cable Rollers | Cable Protection Covers MV HV | Cable Joints MV HV | Duct Sealing

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

HV Cable Jointing, Substation, Electrical & Mechanical Engineering Services (up to 400kV)

MRR Energy Services

• Guest Post by Claire Carr - MRR Energy Services (Operations & Strategy Manager)

MRR Energy Services is a service provider to the Multi-Utilities, Transmission and Distribution, Oil & Gas and Renewable Industries providing HV Services with the addition of project manpower provision providing engineering, technical and construction professionals on a permanent, temporary and project basis – this includes trained and competent high voltage cable jointing teams for UK and international projects.

As a service provider to the Multi-Utilities, Transmission and Distribution, Oil & Gas and Renewable Industries MRR works closely with market leading contractors and companies focused on supplying global engineering and technical manpower solutions, including the delivery of High Voltage Electrical & Mechnical Services for Substation Installation & Maintenance up to 400kV.

MRR Energy Services are focused on providing niche technical, commercial, management and board level functions globally with extensive experience working across a wide range of industries and clients from PLC to start-up  – this includes provision of high voltage cable jointers with current Jointer Training Competency Certification from market-leading manufacturers including Pfisterer Connex, Nexans Euromold and 3M Cold Shrink.

MRR Energy Services are ISO 9001:2015 UKAS accredited.

What Do MRR Energy services Do?

Site Professional Services

• Project & Site Management
• Project Support & Coordination
• Technical Support

Turnkey Subcontract Works

• Civil Works
• Electrical Installation
• LV & HV Cable Installation
• LV Cable Jointing
• HV Cable Jointing

Labour Supply & Fault Works

• Civil & Groundworks Operatives
• Formwork & Steel Fixers
• Plant Operatives
• NRSWA Operatives
• Confined Spaces Operatives
• HV Cable Installation Operatives
• Onshore/ Offshore Cable Jointers (up to 400kV)
• Safe Excavations In Accordance With HSG 47
• No-dig Methods e.g. shot blast, air lance
• Cable Jointing Support
• Cable Sheath Testing & VLF Testing
• HVAC Commissioning
• Site Managers
• Project Managers

HV Services including Substation Installation & Maintenance

• Mechanical & Electrical Substation Work Up To 400kV
• Installation
• Refurbishment
• Repair
• Alignment & Setting Of Hapam & Alstom Disconnectors & Earth Switches Across The Voltage Range > 400kV
• Project & Site Management
• Project Support & Coordination
• Technical Support
• Civil Works
• Electrical Installation
• Cable Installation
• HV Cable Jointing

Working in partnership with Utility Engineering Solutions. Their design support services include:

• Substation Earthing Design Using CDEGS Earthing Systems Software
• Design Of AIS & GIS Substations
• Specification Of Plant & Equipment up to 400kV
• Protection Studies
• Protection Wiring Schemes
• Fault Level & Load Flow Studies
• Generation Studies
• Point to Point Wiring Schedules
• HV/EHV Cable Network Design
• Terminal Tower Design up to 400kV

Primary Contractor / System Operator Support

What MRR Energy Services offer?

• Full Recruitment Outsourcing
• Full Contractor Management
• Project and Site Management
• Consultancy Services
• Business Development Support
• Substation Installation & Maintenance > 400kV
• Transformer Replacement/ Refurbishment/ Maintenance > 400kV
• Comprehensive Industry Insight & Understanding (gained through past & ongoing endeavours)

◦ Our Inspired Payroll solution takes care of the administrative and financial burden

• Not only will it help with the smooth running of your business but it will also ensure that it is able to reach its full potential

◦ Remove the burden of back office administration with our managed payroll services

• Our online payroll services are simple and easy to use, with our cloud based portal allowing you to effortlessly manage the whole back office process wherever, whenever

◦ Go paperless

• Our online payroll services enable you to manage all documents in the cloud keeping them safe and secure and accessible from anywhere

◦ Payroll management

• Full management of your payroll processing responsibilities for our contractors

◦ Timesheet management

• Process all timesheets, even manual ones, online immediately and seamlessly

Contact MRR

mrrinternational.co.uk

01919172022

[email protected]

LinkedIn Page https://www.linkedin.com/in/mrr-energy-services-107887178

THORNE & DERRICK SPECIALIST ELECTRICAL DISTRIBUTOR

LV ♦ MV ♦ HV

T&D distribute the most extensive range of LV, MV & HV Cable Jointing, Terminating, Pulling & Installation Equipment – we service UK and international clients working on underground cables, overhead lines, substations and electrical construction at LV, 11kV, 33kV and EHV transmission and distribution voltages.

• Key Products: MV-HV Cable Joints & Terminations, Cable Cleats, Duct Seals, Cable Transits, Underground Cable Protection, Copper Earth Tapes, Cable Jointing Tools, Feeder Pillars, Cable Ducting, Earthing & Lightning Protection, Electrical Safety, Cable Glands, Arc Flash Protection & Fusegear.

• Distributors for: 3M Cold Shrink, ABB, Alroc, Band-It, Catu, Cembre, Centriforce, CMP, Elastimold, Ellis Patents, Emtelle, Furse, Lucy Zodion, Nexans Euromold, Pfisterer, Polypipe, Prysmian, Roxtec.

LV – Low Voltage Cable Joints, Glands, Cleats, Lugs & Accessories (1000 Volts)

MV HV – Medium & High Voltage Cable Joints, Terminations & Connectors (11kV 33kV EHV)

Cable Laying – Underground Cable Covers, Ducting, Seals & Cable Pulling Equipment

T&D, CATU Electrical Safety & Arc Flash Protection Specialists for SAP’s, Linesmen, Jointers & Electrical Engineers – Largest UK Stockist

INVITATION

Thorne & Derrick invite you to join LinkedIn’s largest LV-HV Electrical Discussion Group : Low & High Voltage Power, Cabling, Jointing & Electricals. Discussion subjects include cable installations, cable jointing, substation, overhead line and electrical construction at LV, 11kV, 33kV and EHV. Network, engage and promote your profile, company or products with over 10,000 influencers.

Pfisterer Connex Cable Plugs – Cable Terminations For MV-HV 33kV Cables

Thorne & Derrick | Distributed from Stock | Approved Supplier 

• ---

  uploaded by: Chris Dodds Thorne & Derrick Sales Marketing Manager

Cable Fittings For

Medium Voltage Networks

The range of Pfisterer cable plugs, joints, terminations fittings and accessories offers solutions for virtually all MV & HV Cable Connection applications – Pfisterer accessories use silicone as an insulating medium due to the excellent properties that it possesses.

Pfisterer MV Cable Accessories

The following Video provides an overview of the Installation Procedure for CONNEX Connectors for the termination of Medium/High Voltage (MV-HV) Cables manufactured by Pfisterer and stocked by Thorne & Derrick – should you require specification support, technical guidance or Jointer training services please call us to discuss.

Pfisterer MV Connex

Dry, Separable Connector System

The MV-Connex cable termination system has a fully insulated metal housing with touch proof properties, maintenance free and suitable for use outdoors, offshore and is waterproof for use on medium/high voltage cable systems.

MV-CONNEX products for medium voltage systems are supplied in a wide range of variations – this includes traditional plug and socket combinations, multiple sockets, bus-bar connectors, surge arresters and voltage detecting systems.

The MV Connex range manufactured by Pfisterer is ideal for use in ring main units, high-voltage motors, circuit-breaker switchgear, transformers, capacitors, transducers and sealing boxes. The inner cone plugs are suitable for use on all types of insulated plastic cables including XLPE and EPR and as well as the standard range of plugs, there is also customer specific versions for most medium/high voltage cable types.

Pfisterer MV Connex Plug

There are many advantages of using the Pfisterer MV-Connex cable termination system.

These include:

• A touch proof, fully insulated enclosure
• No liquid insulating medium
• Soil proof and maintenance free cable termination
• Protection class IP68 and up to 11kV (E Exe Hazardous Areas)
• Thorough transformer and GIS (Gas Insulated Switchgear) testing by manufacturer
• Metal enclosed and no need to open the cable termination at the installation site

Silicone

The Key Material In MV Electrical Engineering

Silicone rubber is the perfect material for MV cable terminations. This is down to the resistance to water, grease, oil and dirt as well as the shock resistance that silicone provides.

When used as a stress relief device in sealed applications, silicone evens out temperature variations and unevenness in the cable surface.

Silicone also avoids potentially dangerous partial discharges caused by air gaps.

Pfisterer MV-Connex Cable Termination System Cross Section

The MV-Connex cable termination system is constructed of four areas: Contact system, Insulating and Field-control, Housing and Bushing. The contact system comprises of a contact ring, tension cone and thrust piece.

The Housing consists of a bell flange, pressure sleeve and spring, heat shrink, test lead and a cable screen. The bushing section of the connector consists of a female contact part, insulating bushing and housing.

Continuous Voltage Indicator for Enclosed Equipment

Voltage detection systems that detect indicate the presence of voltage without directly contacting live parts are becoming ever more important due to increasing use of enclosed switchgear. The principle of the DSA continuous voltage indicator that was developed by Pfisterer has become a standard.

In line with the trend towards integrated systems Pfisterer have incorporated these plug-in display devices in the compact DSA-i3 system.

Pfisterer Connex Plugs (33kV Separable Connectors Size 3)

Complete range of Pfisterer tools are available for use by Jointers to enable the installation of MV-Connex inner cone plug cable terminations:

Further Reading

Electrical Safety – Arc Flash Accidents & Electrocution In LV-HV Installations

Cable Joints – Your Cable Circuit Is Only As Strong As Its Weakest Link …

See also Surge Diverters | Sheath Voltage Limiters

THORNE & DERRICK SPECIALIST ELECTRICAL DISTRIBUTOR

LV ♦ MV ♦ HV

T&D distribute the most extensive range of LV, MV & HV Cable Jointing, Terminating, Pulling & Installation Equipment – we service UK and international clients working on underground cables, overhead lines, substations and electrical construction at LV, 11kV, 33kV and EHV transmission and distribution voltages.

• Key Products: MV-HV Cable Joints & Terminations, Cable Cleats, Duct Seals, Cable Transits, Underground Cable Protection, Cable Jointing Tools, Feeder Pillars, Cable Ducting, Earthing & Lightning Protection, Electrical Safety, Cable Glands, Arc Flash Protection & Fusegear.

• Distributors for: 3M, ABB, Alroc, Band-It, Catu, Cembre, Centriforce, CMP, Elastimold, Ellis Patents, Emtelle, Furse, Lucy Zodion, Nexans Euromold, Pfisterer, Polypipe, Prysmian, Roxtec.

LV – Low Voltage Cable Joints, Glands, Cleats, Lugs & Accessories (1000 Volts)

MV HV – Medium & High Voltage Cable Joints, Terminations & Connectors (11kV 33kV EHV)

Cable Laying – Underground Cable Covers, Ducting, Seals & Cable Pulling Equipment

T&D, CATU Electrical Safety & Arc Flash Protection Specialists for SAP’s, Linesmen, Jointers & Electrical Engineers – Largest UK Stockist

INVITATION

Thorne & Derrick invite you to join LinkedIn’s largest LV-HV Electrical Discussion Group : Low & High Voltage Power, Cabling, Jointing & Electricals. Discussion subjects include cable installations, cable jointing, substation, overhead line and electrical construction at LV, 11kV, 33kV and EHV. Network, engage and promote your profile, company or products with over 10,000 influencers.

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 

Cable Splicing Underground

3M Electrical

Did you know Cold Shrink, invented and developed by 3M Electrical in the 1970’s, provides:

• Low Cable Failure Rates*:
  – 0.067% for Cold Shrink Cable Joints & Cable Splices
  – 0.022% for Cold Shrink Terminations

* Data based upon U.S. failure data of U.S. manufactured 3M Cold Shrink Medium Voltage Cable Accessories 
between 2009 and 2012.

3M Cold Shrink Joints & Terminations

Joints & Terminations Stocked by T&D UK | Nexans Euromold | Pfisterer CONNEX

LV MV HV Jointing, Earthing, Substation & Electrical Eqpt