Jointers Blogs
Masterclass : Pirelli 33kV Fluid Filled Oil Cable Jointing
May 26th, 2021uploaded by Chris Dodds – Sales Marketing Manager at Thore & Derrick
All Images Courtesy : Andrew Brezovszky (EHV Cable Jointer).
In a previous Guest Blog Andrew taught us the theoretical formula and then demonstrated the practical skill required in calculating and installing premoulded sleeves when jointing 110kV Extra High Voltage cable.
Today, Andrew leaves the classroom for the cable trench and provides a new Masterclass in “old-skool” oil cable jointing.
This contrasts perfectly with his modern day classic, XLPE Masterclass : 110kV Cable Preparation & Termination Using Prysmian Outdoor Sealing Ends
The 2 Masterclasses demonstrate the true depth of experience and craftmanship accumulated over decades that world class cable jointers hold – the ability to joint all cable types, whether oil, paper or XLPE with professional Certification across all manufacturers whether Pfisterer, ABB, Tyco, Brugg, 3M or Taihan.
Due to the polymeric dominance of modern cable manufacturing many of the “traditional” jointing skills are no-longer taught in the jointing schools. This is reinforced by cable accessory manufacturers making technological revolutions in the design of cable joints and terminations, such as 3M QS4 Cold Shrink.
Increasingly at 11kV and 33kV voltages cable joints and terminations are now designed to simplify the installation process – while this is not a deliberate attempt to “de-skill” cable jointing it inevitably leads to a slimmer skill-set requirement for todays MV jointer.
This series of Photographs is an enthralling counterpoint to the daily stream of “polymeric posts” on our Blog.
Pictured : 33kV Fluid Filled 3 Core Cable, 0.5 Square In.(cca 325sqmm) Copper Conductor PAPVC (Aluminium Sheathed). Made by Pirelli Cables. Pirelli transferred ownership to Goldman Sachs Capital Partners and is now called Prysmian Cables & Systems Limited.
Pictures show the process of cable excavation, preparation and jointing. The sequence also shows site set-up with 2 separate scaffolding for the cable joint bays, fencing, generator, lighting tower, oil trailer, shipping container for jointing tools and materials.
Pictured : In 2014, Prysmian (formerly Pirelli Cables) celebrated 100 years in Southampton UK. Cable Braiding Machine and Lowering Paper Cables Into A Vacuum.
New 33kV cable supported by cable rollers and jacks pulled in from drum and installed
Platforms Erected – 33kV cable ready for cut and cap
Cable Cut & Cap Plumbed Onto Drum – oil lines reconnected after final flush
Flow Board & Oil Trailer – the supply is set and ready for cutting the cable the next morning
Cables Cut, Flushed From Filing & Impurities – the 33kV aluminium cable sheath is removed with great care so the cores and insulation are not damaged. The cable gland is then plumbed onto the cable sheath.
33kV Cable Preparation- after more cable preparation work the 33kV cable cores are set, measured and cut to length
Sorry – doing the sweating left me with no hands, so that’s the final product
Ferruling – 33kV cable ferrules cleaned up
Chamfered 33kV Cores Ready For Taping – the white tape isn’t insulation tape 😉 just saying!
Cores Taped
Installing Screening Layer
Padding
33kV Can Installed
33kV Outer Joint Box Installed
Pirelli – all jointing materials, cable, taping paper supplied by Pirelli
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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132kV Substation Cable Joints (Taihan) – XLPE Single Core 1200sqmm
May 26th, 2021Image Courtesy of: Joseph Deapera – Technical & Commercial Director at Power Projects Contracting
Pictured: 132kV Substation Cable Joints (Taihan) – XLPE Single Core 1200sqmm
Thorne & Derrick Specialist Electrical Distributor
Established since 1985, T&D distribute the most extensive range of LV, MV & HV Cable Jointing, Terminating, Cable Pulling & Installation Equipment – contact us today for a competitive quotation.
Key Products : MV Joints & Terminations, Cable Cleats, Duct Seals, Cable Transits, Underground Cable Protection, Jointing Tools, Feeder Pillars, Cable Duct, Earthing & Lightning Protection, Electrical Safety, Cable Glands, Arc Flash Protection & Fusegear.
Distributors for : 3M, Pfisterer, Nexans Euromold, Elastimold, Catu, Roxtec, Emtelle, Centriforce, Lucy Zodion, Alroc, Hivotec, Cembre, Prysmian, Ellis Patents, ABB & Furse.
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. ➡
Pfisterer Connex 6S Inner Cone Plugs Terminating 300kV Nexans Cables Into GIS
May 26th, 2021- Cable : Nexans USA (XLPE 300kV)
- Cable Termination : Pfisterer Connex
- Cable Jointer : Andy O’Malley (Allteck Power Line Contractors)
Nexans 300kV cable (220kV circuit voltage) is shown prepared for termination using (245kV). The HV circuit is terminated into GIS (Gas Insulated Switchgear) using Pfisterer Connex.
Pfisterer Connex medium and high voltage cable plug termination system is specified on global power projects for use in high load ring main units, circuit breaker switchgear, high voltage motors, transformers, capacitors, transducers and cable joint boxes.
T&D are Main Distributors & Stockists for the Pfisterer Medium Voltage Power Products including Connex Plugs, Cable Jointing Tools, Sicon Connectors, Surge Arresters and Electrical Safety Equipment.
Image : Goodbye Glass
Alroc AMF5 55-160 tool removes the need for HV jointers to “glass” the outer conductive sheaths as the highly precision engineered cable jointing tool provides accurate stripping of HV and EHV cables in a motor controlled rather than manual process.
Safety Rules OK!
Pfisterer Connex 6S ready to plug in – the cable termination end is carefully protected and covered. This cable is situated inside a temperature controlled room and is “red-taped” to prevent unplanned entry.
“Great Safety is Great Business”
High voltage is high risk therefore worker safety is paramount at Allteck. Actually, it’s more than that – it is their number 1 core value.
According to OSHA, typical occupational hazards include :
- High voltage cable or power line contact
- Working at dangerous height
- Working in confined spaces
- Challenging weather conditions and terrain – urban and rural work locations
- Vehicle traffic
Correct PPE and fall arrest equipment are minimum safety requirements for the Lineman’s body. Most important is the “safety mindset” of the company – Allteck have a proud and proven track record in implementing the highest levels of safety standards.
Safety is at the heart of their company culture and reputation.
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. ➡
500kV Overhead Line & Live Line Training Gallery – Powerline Training Consultants
May 25th, 2021All Images Courtesy – Jim McDonald | Live Line Training at Powerline Training Consultants
Jim has worked in the overhead line trade for over 40 years and has been conducting live line training through his own business (Powerline Training Consultants) for over 20 years.
PTC specialise in live line transmission work and barehand work methods and procedures. During the past several years PTC have developed and introduced several companies to a specialised barehand work method – rope access.
To date PTC have exposed BPA, SRP, SDG&E, National Grid, Tri State, ITC, KAMO Power and SCE to this innovative work method. Jim has also authored several technical procedural manuals on barehand and live line tool work as well as rigging principles and procedures for the line trade.
➡ See our range of Overhead Line Equipment
500kV Barehand Overhead Line Work
500kV Barehand “V” String Rope Access
500kV Dead End Insulator Change
500kV Barehand Insulator Change SRP
500kV Dead End Insulator Change Barehand Method
500kV Energized Barehand Rope Access “I” String & Rappelling From Conductor
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. ➡
145kV Pfisterer Cable Joint + Installation Video
May 25th, 2021
Pictured: 145kV Pfisterer Cable Joint
Image Courtesy of: CB Jointing
Installed by: Chris Barker (EHV Cable Jointer and Owner at CB Jointing)
Video Pfisterer IXOSIL MSA HV Joints 72.5kV-400kV
T&D are Main Distributors & Stockists for the Pfisterer range of Medium Voltage Power Products including Connex Plugs, Cable Jointing Tools, Sicon Connectors, Surge Arresters and Electrical Safety Equipment.
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. ➡
