Jointers Blogs
Heat Shrink Cable Termination Connecting 20kV Cable To High Voltage Metering Cabinet
April 11th, 2018
- Application: Cold Shrink & Heat Shrink Cable Termination
- Cable Termination: Raychem TFTI CS Cable Termination & Renley Metering Cabinet
- Cable Jointer: Richie Rice EHV Cable Jointer at Hi-Volt Jointing Solutions
- Featured Manufacturer: Raychem & Renley Ltd
Cable TerminationS
Raychem TFTI
Raychem TFTI is a high voltage cold shrink, cold-applied cable termination designed with an extended neck to cover the mechanical shearbolt cable lug connection. Additional anti-track heat shrink tubing has been applied onto the MV HV cable sheath jacket for the centre phases to achieve enhanced electrical insulation between copper wire shield and the medium/high voltage busbar – the cold shrink terminations provide safe cable connections for working in potentially explosive atmospheres such as MV HV substations where flammable gas could be present.
The cable conductors are terminated using either crimp (compression) or mechanical (shearbolt) high voltage cable lugs from manufacturers such as Cembre or Pfisterer SICON.
HV Cold & Heat Shrink Cable Termination Connecting 20kV Cable To HV Cabinet
Raychem TFTI CS Termination
Renley Ltd Metering Cabinet
Heat Shrink & Cold Shrink, Cold-Applied Cable Termination
Should you require any assistance with the selection or specification of heat shrink cable terminations or joints please do not hesitate to contact us.
Thorne & Derrick Specialist Electrical Distributor
LV ♦ MV ♦ HV
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, 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
More…
T&D’s Power Blog covers: LV MV HV & EHV Transmission & Distribution, Substations, Switchgear, Cable Jointing & Termination, Cable Fault & Repair, Underground Cables.
Euromold Cable Connections – MV Switchgear GIS Connectors Type Use With Ormazabal CGMCOSMOS
March 9th, 2018
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by Chris Dodds T&D - estimated reading time 5 minutes
Ormazabal are leading manufacturers of Medium Voltage Switchgear & Electrical Distribution Products – this includes:
- Primary Distribution Switchgear
- Secondary Distribution Switchgear
- Transformer Substations
- Distribution Transformers
- Low-voltage Boards
- Medium Voltage Products – Protection, Control & Automation Of MV Networks
- Renewable Energy Applications
The following post shows the range of Euromold Connectors which are suitable for and manufacturer approved for use with Ormazabal medium/high voltage equipment bushings according to IEC 50181. BS EN 50181:2010 is the industry standard for plug-in type bushings above 1kV up to 52kV and from 250A to 2,50kA for MV-HV switchgear and transformers.
Euromold Connectors & Acessories
EN 50181 IEC Bushing Types
Ormazabal recommends the use of Euromold connectors for the termination of MV-HV cables as they have been tested in the Ormazabal CGMCOSMOS system cubicles.
CGMCOSMOS is part of the Ormazabal Medium Voltage Switchgear Secondary Distribution range – a fully gas-insulated modular and compact (RMU) system up to 24kV.
3 different types of EN 50181 (IEC) bushing types that are manufactured in epoxy resin and conform to the dielectric and partial tests.
• Plug-in Bushing up to 250 A
• Plug-in Bushing up to 400 A
• Screw-in Bushing up to 630 A
MV-HV bushings are located in the cable compartment or can also be placed on the side of the cubicles for direct supply to the main busbar via plug-in or screw-in connectors rated current greater than 400A or short-circuit current equal to or higher than 16kA.
250A plug-in cable connectors (straight or elbow type for rear exit of cable) in outputs to transformer (cable compartment) for fuse protection functions and shielded connectors for circuit-breaker protection functions.
Cross Section of Euromold Cable Connector
Euromold Connectors 250A Bushing
Interface A
| MV HV Cable Type | Cable Connector Type | 12kV Connector Type | 12kV Cross Section mm² | 24kV Connector Type | 24kV Cross Section mm² |
| Dry Cable | Elbow Connectors | Euromold 158LR | 16 – 150 | Euromold K-158LR | 16-150 |
| Dry Cable | Straight Connectors | Euromold 152SR | 16 – 150 | Euromold K-152SR | 25-120 |
Euromold Connectors 400A/630A Bushing
Interface C
| MV HV Cable Type | Shielded/Unshielded | Current Rated [A] |
12kV Connector Type | 12kV Cross Section mm² | 24kV Connector Type | 24kV Cross Section mm² |
| Dry Cable | Shielded | 400A | Euromold 400LR | 70-300 | Euromold K-400LR | 25-300 |
| 400A | Euromold 400TE | 70-300 | Euromold K-400TE | 25-300 | ||
| 630A | Euromold 450SR | 70-300 | Euromold K-450SR | 25-300 | ||
| 630A | Euromold 400LB | 50-300 | Euromold K-400LB | 50-300 | ||
| 630A | Euromold 400TB | 70-300 | Euromold K-400TB | 35-300 | ||
| 630A | Euromold 440TB | 185-630 | Euromold K-440TB | 185-630 | ||
| Unshielded | 630A | Euromold 15TS | 35-630 | Euromold UC412L | 50-240 | |
| Cable With Paper Insulation Oil Impregnated |
Shielded | 630A | Euromold K-400TB-MInD | 25-240 | Euromold K-400TB-MInD | 25-240 |
Euromold K158LR Connector – Elbow Plug-in Terminal
Euromold K152SR Connector – Straight Plug-in Terminal
Euromold K400TB Connector – Screw-in T-Terminal
Euromold Connector Accessories
| Euromold Accessory Description | Up to 24kV |
| Plug-in shunt in T | 250A |
| Plug-in shunt in cross formation | 250A |
| Insulating plugs | 250A |
| Reducers | 250A |
| Connection terminals | 250A |
| Surge arresters | 5kA |
➡ More Reading: Euromold 400LR 33kV Connections Into Ormazabal MV Switchgear
➡ View the complete range and specifications of electrical equipment bushings for medium/high voltage switchgear and transformers.
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Thorne & Derrick International
11kV 33kV Terminations
T&D are Main UK Distributors for Nexans Power Cable Accessories – this includes heat shrink and cold shrink cable joints and terminations and the Euromold range of screened separable connectors extensively installed to terminate MV-HV power cables.
T&D 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 Terminations
Thorne & Derrick distribute Nexans Cable Terminations for medium and high voltage electrical cable systems, 11kV/33kV – we provide competitive prices for both heat shrink and cold shrink terminations from extensive stocks to UK and international destinations.
Nexans cable terminations are used for connecting 11kV/33kV power cables into MV-HV electrical equipment including switchgear, transformers and substations – heat shrink terminations are available for both single and 3 core polymeric (XLPE EPR) cables.
➡ Read how Thorne & Derrick are now UK Main Distributors for Nexans Power Accessories.
- 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.
➡ Visit Power Blog.
Euromold 400LR 33kV Connections Into Ormazabal MV Switchgear
March 7th, 2018More info: Euromold 400LR Switchgear Connectors
- Application: Medium Voltage Switchgear Primary Distribution
- Primary Switchgear Type: SF6 Gas Insulated 33kV
- Contributor: Matthew Collins (Business Development Manager at Ormazabal)
- Featured Manufacturer: Ormazabal (Spain)
- Client: Western Power Distribution (WPD) UK DNO
- Sector: Utility
Ormazabal 33kv Switchgear
Medium Voltage Primary Distribution
Ormazabal CPG.0 range of CPG MV switchgear comprises of a full assembly of modular cubicles up to 24kV / 2500A and 33/36kV / 1250A, GIS (Gas Insulated Switchgear) type, with SF6 insulation, for the configuration of primary distribution electrical networks operating at medium voltages. Types of Ormazabal functional 33kV MV switchgear:
- MV Circuit Breaker CPG.0-V
- MV Busbar Coupling CPG.0-C
- MV Disconnector CPG.0-S
- MV Fuse Protection CPG.0-F
- MV Busbar Rise CPG.0-RB
Ormazabal 33kV switchgear pictured prior to factory testing – the MV primary switchgear is with a standalone busbar protection panel designed in accordance with WPD engineering specification
The installation of elements that allow to withstand an internal arc in all Medium Voltage compartments, together with an advanced design that provides total resistance against external factors, ensures Ormazabal CPG.0 cubicles are the ideal solution for using in 33kV substations providing a safe and reliable distribution of medium voltage electricity.
33kV Medium Voltage Switchgear
33kV switchgear for use in a wide range of installations:
- Utilities
- Industrial sector
- Primary distribution substations
- Cement industry
- Mining industry
- Mobile substations
- Switching substations
- Textile industry
- Food industry
- Electrical power stations
- Chemical and petrochemical industry
- Substation
- Steel industry
- Automotive industry
- Airports and railways
- Wind farms
WPD Western Power Distribution – A UK DNO
Western Distribution Power
Electricity is distributed UK countrywide via the National Grid at 275kV or 400kV and is transformed to 132kV for regional distribution at substations, known as Grid Supply Points, by the Distribution Network Operator (DNO).
Western Power Distribution is a electricity distribution network operator (DNO) for the Midlands, South West and Wales in the UK.
They deliver electricity to over 7.8 million customers over a 55,500 square kilometres service area. With a network consisting of 220,000km of overhead lines and underground cables, and 185,000 electricity substations.
WPD – UK DNO
MV Switchgear Terminations 33Kv
Should you require any assistance with the selection or specification of MV Joints & Terminations for use with medium voltage switchgear please do not hesitate to contact us.
T&D distribute both Pfisterer inner cone plugs and Nexans Euromold outer cone separable connectors for terminating 33kV cables into SF6 gas insulated MV switchgear.
Nexans Euromold connectors are manufacturer approved for terminating high voltage cables into Ormazabal MB24kV Compact Transformer Substations – Ormazabal MB is an associated type Compact Equipment Assembly to be installed in Prefabricated Transformer Substations or in housings constructed to be Transformer Substations in distribution networks up to 33kV/36kV.
Euromold 400LR interface B
Elbow connector FOR SWITCHGEAR BUSHINGS
For 400A/630A bushings in 11/12kV and 20/24kV switchgear the following Euromold type connectors can be used to terminate medium/high voltage power cables into Ormazabal MB24 equipment.
- 11/12kV Shielded MV HV Connector – Nexans Euromold 400LR
- 24kV Shielded MV HV Connector – Nexans Euromold K-400TB
- 11/12kV Unshielded MV HV Connector – Nexans Euromold 15TS
- 11/12kV Straight MV HV – Nexans Euromold 152SR
- 24kV Straight MV HV Connector – Nexans Euromold K-152SR
Nexans euromold 400LR Key
1.Conductive EPDM Insert 2. Conductive EPDM Jacket 3. Insulating EPDM Layer 4. Type Interface B 400A according to CENELEC EN50180 50181 5. MV HV Conductor Connector 6. Cable Reducer 7. Earthing Lead
Ormazabal MB24 & Euromold 400LR Connectors
Thorne & Derrick Specialist Electrical Distributor
LV ♦ MV ♦ HV
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, Duct Seals, Cable Transits, Underground Cable Protection, Cable Jointing Tools, Feeder Pillars, Cable Ducting, Copper Earth Tapes, 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
➡ Visit Power Blog
66kV 3 Core Glovers Gas (HP) Cable Joint
March 6th, 2018
- Application: 66kV Cable Joint High Voltage
- Cable Joint Type: 66kV 3 Core Glovers Gas (HP) Cable Joint
- Contributor: Matthew Taffs EHV Cable Jointer & Director at CRS (Cable Repair Services) Ltd
- Featured Manufacturer: Glovers (W T Glover)
- Client: SSE
- Sector: Utility
66kV Cables
Gas Filled High Voltage Cable Jointing
The 66kV 3 core high pressure (200 psi) gas joint (nitrogen) was made for SSE by Matthew Taffs of CRS Ltd and John Beck both working for Balfour Beatty at the time.
The 66kV cable construction was oval copper conductor with a lead sheath and steel reinforcing tapes with hessian wrapped layer. The manufacturer of the cable joint was Glovers (W T Glover) of Trafford Park, Manchester which later became part of BICC.
The cable joint is from the 1950’s and when the joint was unpacked from the wooden create it was still packed in straw. The insulation of the cable had to be stepped down to the conductor known as pencilling using piano wire and weights.
The joint consisted of a two piece split ferrules which was sweated on the conductor with tinmans metal. Once sweated the ferrule was cleaned up and the insulation was ready to be applied. The insulation was flat/plain paper tapes (not crepe) coated in a thin layer of grease and was applied with care by the jointer. Once built up to the final diameter the end profiles had to be skilfully teared down using piano wire and weights again. The metallic screen reinstated from one side to the other and then each core is covered in terylene tape.
Both end cable glands of the joint had internal plumbs /wipes and when the plumbing was finished – hot oil was poured on followed by a hot metal into the cable gland to reinforce the steel tapes and lead sheath as this 66kV cabling system is such high pressure it would split the lead sheath.
Once the 66kV joint was finished the jointer bolted the sleeve to the cable gland and turn on the nitrogen gas and check for leaks. The 66kV joint could be protected in either a Glo (Glovers) Sleeve filled with compound/ bitumen or heat shrink. The job was project managed by Gary Horne, now of CRS (Cable Repair Services) Ltd.
66kV 3 Core Glovers Gas (HP) Cable Joint
66kV Polymeric Cables
21st century cable manufacturing is dominated by polymeric type insulated cables and for offshore wind farm power generation including subsea power, array, inter-array and intra-array cables – to support this type of 66kV high voltage cable infrastructure Thorne & Derrick via their distribution agreement with Nexans can supply a complete range of joints, terminations, connectors and surge arresters detailed below.
Ad: Two Times More Power. Jointers! Empower your CV and skill-set by grasping the 66kV Jointer Training opportunity. Jointers must currently be 33kV Competent and experienced to be ready to undertake the step-up to 66kV from 33kV.
Pictured: Prysmian type tested a 3-core 66kV EPR insulated “wet-design” cable system with aluminium conductor (copper is also available) – and integrated optical element. The solution includes factory, field cable joints, plug-in cable terminations and cable cleats, using proprietary Prysmian Click-Fit™ technology combinings the use of EPR insulation.
66kV Cables – Offshore Wind Farms
Company History – Walter T. Glover & Co
Walter T. Glover & Co of Trafford Park, Manchester and London, were electrical cable manufacturers.
1868 – Company founded with premises at the Bridgewater Street Iron Works in Salford. The founder, Walter T. Glover, was a commercial machinery agent for the Lancashire cotton industry.
1959 – BICC acquired 50% of Submarine Cables Ltd which was used to manufacture and install power cables. Glover’s submarine cables were used to link England and France, and the north and south islands of New Zealand. However, although the company appeared to be doing well, there was increasing international competition to supply cables. The south side of the Trafford Parks works was integrated into the newly formed Wiring and General Cables Division of British Insulated Cables (BICC).
Trip down memory lane…………….
W.T. Glover, Trafford Park, cable being laid over a cofferdam, 1911
W.T. Glover, Trafford Park, Installation of cabling in Ebbw Vale, 1905
W.T. Glover, Trafford Park, installation of cabling, with motor vehicle clearly visible, 1905
W. T. Glover and Co – 1970 The Trafford Park factory was closed, but the Glover brand continued as part of BICC.
Thorne & Derrick Specialist Electrical Distributor
LV ♦ MV ♦ HV
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, Duct Seals, Cable Transits, Underground Cable Protection, Cable Jointing Tools, Feeder Pillars, Cable Ducting, Copper Earth Tapes, Electrical Safety, Cable Glands, Arc Flash Clothing 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
➡ Visit Power Blog
33kV Cable Joint & High Voltage Cable Diversion
February 23rd, 2018
- Application: Trifurcating Transition 3 Core HSL PILC Cable to Single Core XLPE Cables 33kV
- Product Type: 33kV Cable Joint
- Cable Jointer: Matt Manison Cable Jointer up to 33kV at Man Power Connections
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by Chris Dodds T&D - estimated reading time 5 minutes
33kV Cable Joint
Thorne & Derrick International
T&D distribute the most extensive range of MV & HV Cable Joints & Terminations, Cable Installation Accessories & Cable Pulling Equipment – we service UK and international clients working on underground cables, overhead lines, substation earthing 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 Spikers, Cable Jointing Tools, Feeder Pillars, Cable Ducting, Earth Tapes, 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.
➡ Visit Power Blog.
