Image courtesy of: Caroline Earnshaw-Florczyk Commercial Director at Networx3 Limited. Networx3 are the leading installer of blown fibre in the UK.

Pictured: Fibre Cable Installation, Termination & Testing by Networx3.

Fibre manufactured by Brand Rex, Joint Boxes by Mainframe at London Underground Barking.

Main Contractor Balfour Beatty.

Brand-Rex Fibre Installation, Termination & Testing by Networx3

Brand-Rex

Brand-Rex is a leading developer of cabling solutions for network infrastructure and industrial applications. Mainframe Communications are your one-stop solution for fibre-optics, fibre-optic products and associated services – including TÜV and LUL approved products :

Equipment frames, racks, cubicles, cabinets and housings
Splice trays, pivots, cassettes, frames and tap boxes
Cable management trays, assemblies and storage
Pig-tails, patch cords, loose-tube and multi-way cables

Video: Networx3 was commissioned to repair an Emtelle 14/10 blown fibre duct for Cybermoor. Networx3 have blown over 500 metres of fibre optic cable for Cybermoor; a community owned co-operative providing a Wi-Fi broadband network for Alston Moor and surrounding areas.

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. ➡

3m Sensored Cable Accessories

For The Medium Voltage Grid

Now there’s an economical, proven way to gain visibility to distribution grid electrical measurements.

The power generation mix is changing due to the integration of renewables and electric vehicle (EV) charging infrastructures.

Load profiles, voltage level fluctuations and power flow direction challenges are emerging and utilities need more insight into their medium voltage distribution system.

Join The Webinar

19th May, at 2 pm (UK time): The first webinar will provide an awareness of the trends impacting the medium voltage electric grid and will highlight 3M sensing solutions.
9th June, at 2 pm (UK time): The second webinar will focus on ENEL’s power Utility experience.

➡ Join The Webinar

Join our two live, free webinars to learn how 3M Sensored Cable Accessories can help to automate the medium voltage grid and support the integration of more renewable energies and the adoption of electric vehicles.

The first webinar “Digitising the Medium Voltage Underground Grid” will provide an introduction and the second one “Enabling ENEL’s Smart Grid Development” is about the experience of ENEL Power Utility.

3M Sensored Cable Accessories

Sensored Cable Accessories (SCA), from 3M, provide a retrofittable, compact and economical way for Distribution System Operators (DSOs) to gain visibility and data from their distribution grid with voltage and current measurements.

As the need and importance of measurement and data in the underground grid rises, 3M SCA provides a simple path to high accuracy solutions for assessing and improving fault detection, power flow and power quality. The advent of new regulations and integration of renewables into the medium voltage network, make the need for high accuracy measurements critical for assessing the health of your electrical grid and better managing the future of the network’s grid modernisation.

The Medium Voltage Electrical Network

3M Electrical Providing Visibility Into the Medium Voltage Electrical Infrastructure

3M Sensored accessories easily retrofit inside cable compartments, air insulated switches, gas insulated switches or on transformers inside substations. When you upgrade your existing medium voltage substation with our product, you gain high accurate sensing and overall insight into multiple nodes without the need to replace.

Sensored Cable Accessories

Features And Benefits

3M cable accessories for the medium voltage electrical infrastructure have a variety of features and benefits including:

Small, compact & lightweight integrated form factor
Robust design for retrofit or new equipment
Modular integration interfaces as passive low power voltage transformer in compliance with IEC 61869-11 and IEC 61869-10 for the current sensor
Integrated design fits into existing and constrained spaces
Designed for the rugged underground environment, does not require proprietary sensing equipment
Designed to integrate with multiple existing and new remote terminal units (RTUs) or Intelligent Electronic Devices (IEDs)
Real-time measurements at underground nodes throughout MV distribution system
Saves money by integrating into existing infrastructure

3M – DISTRIBUTORS, STOCKISTS & SUPPLIERS

Thorne & Derrick provide competitive prices and fast delivery from stock for the complete range of 3M Scotchcast and Cold Shrink cable joints, terminations, resins and Scotch electrical tapes – we stock high voltage cable joints and terminations manufactured from 3M using Cold Shrink for 11kV/33kV and up to 66kV cables.

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.

Lovink Enertech LoviSil cable joints are developed on the basis of fluid silicones, a technology that can boast 25 years proven field experience with an extremely low cable joint failure rate. Lovink

Due to the construction and characteristics of the silicone-based insulation material, the Lovink LoviSil medium voltage cable joint is particularly suitable for applications with both polymeric and paper-insulated cables – the ideal transition joint, but also the perfect universal straight through joint.

Lovink LoviSil cable joints have been adopted by Western Power Distribution (WPD) due to their acknowledged low failure rate for the jointing of 11kV EPR cables.

11kV Lovink LoviSil Cable Joints (WPD Approved)

The cable jointer utilises mechanical shearbolt connectors for fast and simplified jointing of conductors without resort to hydraulic crimping tools and die sets.

The white inner casing is a polyester material which is bolted together and then sealed around the outside lip with a poly type resin which is very important to get level. The connections inside the case are filled with LoviSil dielectric silicone fluid. The outer red casing is filled with ProtoSil polyurethane resin.

The cable jointed on this occasion was 11kV Triplex 185sqmm with EPR insulation and bonded screen (WPD Specification).

Lovink cable joint completed by Dan Williamson (Cable Jointer)and Robert Upson (Jointers Mate).

11kV EPR Triplex Cable Joints Using Lovink Enertech Medium Voltage LoviSil Cable Joints

Lovink Enertech Medium Voltage LoviSil Cable Joints (Paper & Polymeric Cables) from Thorne & Derrick International

Jointers blog

15,000+ Subscribers. ➡

Patton & Cooke Co.’s CTM’s are designed for splicing PILC (paper insulated lead covered) cable into solid dielectric cable. P&C modules allow easy and reliable construction of single phase taps or cable splices from PILC distribution cable feeders using Separable Insulated Connectors (i.e. Rubber Elbows).

CTM’s are rated for 15kV or 35kV applications and are available in 200, 600 or 900 Amp configurations.

Image Courtesy : John McGaughan – U.G. Cable Systems Operation Specialist/Safety Manager at Barrow Power LLC

Pictured : Patton & Cooke Transition Module – built by apprentice at TECO Training Centre. Patton & Cooke 600 Amp PILC Cable Transition Module

Patton & Cooke

Since 1961, Patton & Cooke has been designing and manufacturing medium and high voltage electrical connectors and equipment for mines and utilities around the world.

From 600 to 25,000 volts, 145 to 500 Amps, Patton & Cooke designs and manufactures trailing cable couplers, junction boxes, and splitter boxes, as well as cable and coupler handling devices for the safe distribution of power to both mobile and fixed mining production equipment.

Jointers blog

15,000+ Subscribers. ➡

Extra High Voltage or EHV 132kV cable jointing is a highly-skilled area of electrical power engineering.

Cable jointing skill-sets are not automatically transferred up the voltage classes from 11kV to 33kV and onto 132kV.

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 3M products.

Joint | Terminate | Connect Medium & High Voltage Cables MV HV EHV

This webpage has been created to demonstrate the diversity of accreditations and skills demanded in order to joint 132kV cable.

The content derives entirely from the professional workmanship of Chris Barker who is highly respected by peers throughout the UK and international EHV power industry.

Pictured : 132kV Transition Cable Joint. The image clearly shows the exceptional workmanship by EHV Jointer, Chris Barker.

A 16″ chamfer knife was used to achieve the perfect chamfering of the high voltage cable.

Prysmian 132kV Straight Joint

Double Circuit 132kV Prysmian Sectionalised Cable Joints

132kV Prysmian EHV Cable Termination – Finished MIG Weld

132kV 3M Cable Termination

132kV Prysmian Termination

132kV Crimping – 1200sqmm Copper Conductor On LS Straight Joint

“If I MIG weld an aluminium core when jointing I would normally make the weld larger than the core itself. But on a cable termination the jointer must grind it down to conductor size – this requires exceptional welding skills from the HV cable jointer. Cadweld is acceptable but the jointer must open up the cable core and clean and flux every strand,” says Chris Barker.