Jointers Blogs

ABB EHV 275kV Cable Sealing Ends & GIS Cable Terminations

Images Courtesy: Richard Mason – EHV Jointer for Onshore & Offshore work up to 245kV (SMSTS) – Global Cabling Services Ltd

GCS Jointing

GCS Jointing is a trading name of Global Cabling Services Ltd and was founded in 2015 when Richard Mason (Director GCS Jointing – Global Cabling Services Ltd), decided to leave a major power utilities contractor after many years of quality service. Richard is an EHV Jointer with over 25 years of experience  – with a practical approach to HV EHV projects the work GCS undertake is often installed and supervised on site by Richard personally. GCS Jointing is recognised as a specialist HV and EHV Cable Jointing and Cable Installation Sub-Contractor within the onshore and offshore utilities, oil-gas and clean energy industries.

Cable Sealing Ends

Cable Sealing Ends

The cable termination consists of an insulator installed on a box body made of aluminium castings. The box body consists partly of insulating material, which provides an insulated installation for high voltage power cables. The base part is to be installed on a supporting bracket. For 420kV a corona shield and a post insulator kit PIU 420 B/G are included with the cable sealing end. The elecrical stress control component is a premolded rubber stress cone. The insulator has sheds of short-long type and is filled with synthetic insulating oil.

The composite insulator design includes grey silicone rubber sheds and a fiberglass reinforced epoxy resin hollow core. It is light-weight and less sensitive for outer damages. The porcelain insulators are available in brown on request. A bolt clamp in the top fitting is used to connect the conductor to the top bolt. Top bolt and bolt clamp are included in the kit. For the maximum permitted diameter over the cable oversheath and the diameter over prepared XLPE cable insulation – the cable sealing end provides a fixed connection point once lifted into place to secure the cable termination.

Skilled Cable Jointers

Workmanship and Competency in the installation of MV HV cable accessories, including Joints and Terminations, is regarded as critical to the performance and reliable of power cable systems – skilled workmanship during installation by the Jointer is very important when considering and reducing the risk of future cable failures. When preparing HV cable several layers need to be removed or treated without damaging other layers, this requires the highest levels of skills, training and knowledge about how to handle specialist Jointers tools for this application. Knowledge about the critical steps in cable accessory assembling provides the best foundation for successful and safe installation.

ABB

ABB pioneered high voltage gas-insulated switchgear (GIS) more than 50 years ago and is a global leader offering a full-range product portfolio with voltage levels from 72.5kV to 1200kV matching current and future requirements for modern switchgears and power grids.

As a market leader in high voltage GIS technology, ABB has a global installed base of more than 35,000 bays. In a power system, switchgear controls, protects and isolates electrical equipment to boost the reliability of power supply.

GIS is a compact metal encapsulated switchgear consisting of high voltage components such as circuit-breakers and disconnectors.

Jointers blog

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Includes access to our popular JOINTERS BLOG with contributions from utility professionals, linesmen and cable jointers working on MV HV EHV cables and overhead lines typically at 11kV, 33kV, 66kV and up to 132kV.

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Sudkabel 132kV GIS Cable Terminations (Plug In Connectors)

Thone & Derrick | Sudkabel Approved Distributor | Joints, Terminations & Connectors | Specification & Supply

• Application: Terminating 132kV Cables Into GIS Gas Insulated Switchgear
• Cable Type: 132kV Cable XLPE Insulated Polymeric High Voltage Cables
• Cable Jointer: Dave Boyd (EHV Cable Jointer. Director of HV Cablepower Pty Ltd)
• Featured Manufacturer: Sudkabel

About Dave Boyd

Dave has worked as a Cable Jointer for over 20 years starting his career with YEB (Yorkshire Electricity Board) in Huddersfield, England – this included developing a skill-set and competency to work and joint on numerous cables ranging from paper lead street lighting cables to 33kV oil filled medium voltage power cables.

With this background and experience Dave emigrated to Perth, Western Australia where he commenced employment with Western Power – Dave subsequently managed the transmission underground system having gained 132kV manufacturer certifications and accreditations with ABB and LG.

Dave left Western Power and established a new company, Complete Cable Jointing Australia (CCJA), of which he was a co-owner. After five successful years CCJA voluntarily disbanded and ceased trading.

Today, Dave is Managing Director of HV Cablepower Pty Ltd.

Their team of HV EHV Jointers are factory trained with ABB (up to 420kV), LG, Tyco, Pfisterer, Prysmian, Sudkabel (up to 245kV) and Brugg Cables (up to 500kV).

Sudkabel 132kV

JOINTERS BLOG

Subscribe now to our POWER NEWSLETTER– a monthly email circulation packed with news, projects, videos, technical tips, training information, promotions, webinars, career opportunities and white papers.

Includes access to our popular JOINTERS BLOG with contributions from utility professionals, linesmen and cable jointers working on MV HV EHV cables and overhead lines typically at 11kV, 33kV, 66kV and up to 132kV.

15,000+ Subscribers. ➡ 

11kV Triplex Cables | Underground Trench Installation

• Application: 11kV Cable Installation | Underground Cable Trench | Triplex 11kV
• Cable Type: DNO Approved WPD Specification 11kV
• Cable Jointer: Dean Page (Managing Director at DP Cable Jointing Ltd)

About Dean Page

Dean Page is a LV 11kV and 33kV Jointer – with extensive knowledge and work experience on all aspects of LV-HV cables such as XLPE-SWA, PILC, Consac and Triplex. Daily work tasks include LV connections and service work, installation of 11kV substations and associated LV mains infrastructure. Dean is Certificated for the installation of Pfisterer CONNEX and Nexans Euromold type inner and outer cone separable connectors for terminating 33kV cables into gas insulated switchgear.

Cable protection covers, tapetiles and underground warning tapes are installed over LV, MV and HV power cables in trench and ducted cable installations with high visibility colour providing a visual warning of danger when excavating cables. 11kV and 33kV cable protection tapes (Tapetile and Stokbord covers) are manufactured from heavy duty plastic for reliable protection.

T&D distribute the most extensive range of LV, MV & HV Cable Jointing, Terminating, Installation & Cable Pulling 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, Sealing Cable Ducts, 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

More…

T&D’s Power Blog covers: LV MV HV & EHV Transmission & Distribution, Substations, Switchgear, Cable Jointing & Termination, Cable Fault & Repair, Underground Cables.

arrow: Visit Power Blog

EHV Cable Joint – LS Cable 240kV 3000 KCMIL XLPE Cable Circuit

• Application: EHV Cable Joint – LS Cable 240kV 3000 KCMIL XLPE Cable Circuit
• Cable Type: LS Cable 240kV 3000 KCMIL XLPE Cable Circuit
• Cable Jointer: Andy O’Malley (IBEW 258 EHV Cable Jointer / Cable Splicer – Allteck Line Contractors)

EHV Cable Joint

Clean joint bay and cable preparation with copper conductor, aluminium foil laminate with aluminium screen wires. Clean and perfectly straight cable installations such as this are unfortunately rare.

Cable jointing skill-sets are not automatically transferred up the voltage classes from 11kV to 33kV and onto 240kV.

Different techniques and technologies are applied to jointing EHV cables including polymeric, paper lead, oil, fluid-filled and transition jointing using ABB, Ericsson, Nexans, Brugg, Pfisterer Ixosil, Silec and Tyco type products.

Should you require any assistance with the selection or specification of cable joints or terminations please do not hesitate to contact us.

LS Cable & Systems

Extra-high voltage cables require the power network to go underground due to continuous increase of energy demand, larger transmission capacity, reliability of energy supply, safety and aesthetic issues. Among these cables, XLPE insulation cables are used widely due to their ease of handling, simpler jointing connectivity and maintenance, outstanding electrical features and other benefits.

XLPE Cables

The basic material for XLPE is polyethylene, which is chemically transformed to cross-linked polyethylene (XLPE) through the cross-link reaction of organic peroxides. The cross-link method for polyethylene was developed in the United States during the 1950’s and has since been continuously developed for application to higher voltage cables. Higher voltages are increasingly being required and now 500kV XLPE cables have already been commercialized by LS Cables.

Further Reading

• 132kV Termination Pfisterer IXOSIL EST SUB Cable Termination
• ABB NKT SMPGB Straight Cable Joint 420kV
• 3M Scotchcast Cable Joint – Resin & Taped Manhole Cable Splice 600/1000V

JOINTERS BLOG

Subscribe now to our POWER NEWSLETTER– a monthly email circulation packed with news, projects, videos, technical tips, training information, promotions, webinars, career opportunities and white papers.

Includes access to our popular JOINTERS BLOG with contributions from utility professionals, linesmen and cable jointers working on MV HV EHV cables and overhead lines typically at 11kV, 33kV, 66kV and up to 132kV.

15,000+ Subscribers. ➡ 

PILC Cable Joints & LV Switchgear Connections

• Application: PILC Cable Joints & LV Switchgear Connections
• Cable Type: PILC Cable Joints
• Cable Jointer: Lee Richards Self Employed Cable Jointer at LR Power Services. SSE Authorised, PILC, Consac, PICAS. 33kV Pfisterer, LV-11kV. 11kV Lovink

PILC Cable Joints

Cable Jointing Contractors

Here is Lee Richards (LR Power Services) undertaking a switchgear change during a shut down involving the following LV Joints:  1 x 4c 300sqmm PILC Breech Joint, 2 x 4c 300sqmm PILC Straight Joints and 1 x 4c 185sqmm PILC Straight Joint.

Lee is a respected and acknowledged Competent Jointer – his skill set includes completion of the SSE LV HV Jointer Training program and also current 33kV Prysmian Straight Joint and 33kV Nexans Euromold T Connectors tickets.

JOINTERS BLOG

Subscribe now to our POWER NEWSLETTER– a monthly email circulation packed with news, projects, videos, technical tips, training information, promotions, webinars, career opportunities and white papers.

Includes access to our popular JOINTERS BLOG with contributions from utility professionals, linesmen and cable jointers working on MV HV EHV cables and overhead lines typically at 11kV, 33kV, 66kV and up to 132kV.

15,000+ Subscribers. ➡