Jointers Blogs
Overhead Lines Training PhotoBlog by Murray Jones
April 16th, 2020Overhead Lines Training
All Images : Murray Jones – Transmission Live Line Work Officer at Ergon-Energex
Murray is a specialist trainer responsible for transmission live work audits, re-authorisations and live work method development for live line stick and bare hand crews.
Duties include running training for the transmission and distribution field crews in the areas of High Risk plant up to and including advanced rigging techniques for the electrical transmission industry, with conductor stringing and winching applications for all field crews, along with all applicable rescue procedures and techniques from single person rescue.
275kV V String Insulator Change
Tension Insulator Removal Via 5-1 Tackle Rigged With Samson Rope & Horizontal Ladder
Tension Insulator Change From Horizontal Ladder With 3t Lever Hoist
Changing Bolted Connections From The Horizontal Ladder With D3T90 Structure
Remove Conductors & Change Tower Crossarm. Conductor Left Suspended From Insulators Below Block & Tackle
Concrete Pole Flying Angle Insulator Change. Hook Ladder & Lever Hoist
Lower 275kV Conductor Via Square Rig & 3/1 Tackle Using Samson Rope As A Winch Extension
Changing Bridging Restraint Strings
Horizontal Ladder Training – 6m Side Reach At 40m
Changing Conductor Spacer With Aeropower Helicopters
400kV Live Line Insulator Wash. This is an operational rather than a training shot, but its one of the tasks carried out during Aeropowers live line re-certification training. Insulator washing is performed to remove salt and other pollution deposits from insulator strings which allows them to operate at a greater efficiency. This can be carried out with the line still energised by using “clean” water. Essentially, pure water is not a conductor of electricity.
Further Reading
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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Describe The Perfect Cable Joint Bay….
April 1st, 2020Who better to ask than Chris Barker, a leading UK and International EHV Jointer and owner of CB Jointing Ltd.
Chris informed us, “the perfect cable jointing bay for me would have a concrete float finished floor. Timber sides and horses heads with no acro’s in the way.”
“No other services in the joint bay would be present and no live cables nearby the cable jointing zone. Fault joint bays are a nightmare.”
“Other underground utility services constrict the available working space – this is especially difficult when multiple new cable joints need to be installed.”
Pictured below : Cable Jointing Bay Typical – this cable joint bay has been constructed to accomodate 4off 132kV Pfisterer cable joints.
The joint bay was prepared by the civil engineering contractor – ideally the civils contractor would liase with, and listen to, the site cable jointer to ensure sufficient working room is created when building the joint bay.
Here, the EHV cables have been straightened using cable heating blankets.
Two Pfisterer cable joints need to be installed side by side. And the same at the other end of the bay.
Pictured below : Cable Joint Bay Perfection – note the upright timbers along the joint bay side and perfect clear working area for the cable jointer.
EHV Jointers Glossary
Horse heads – these are 9×3 metre timbers upright in the ground and concrete. Located about 1.9 metres above ground level and then a 9×3 metre across the top of them.
Acro’s – these push the sides of the cable joint bay out to stop the timbers collapsing providing structural stability.
A Battle Between Jointer & Joint Bay….
Chris Barker proves that experience and professionalism can conquer jobsite difficulties. Recall the cramped conditions captured in the top photograph. Now imagine not only the sweat and toil needed to wrestle with the cables and joints but the intelligence and determination to actually accomplish the installation.
Lets watch the magic unfold…….
For Starters – Cable Preparation Perfection
Main Course Served – 1 Joint Down, Just 3 More To Go…..
Back For More – 2nd Joint Down…..
Getting Crowded – not much space left to connect concentric bonds and to fit two PP housings…..
Take A Deep Breath…..
Victory – joints boxed up and ready for backfill. Jointer covered in bruises but triumphant.
Further Reading
- Masterclass – 132kV ABB Cable Termination
- 3M Cold Shrink HV Joints Splicing 66kV XLPE Cable
- Hivotec Tools For 66kV Cable Jointing, Stripping & Peeling High Voltage Cables
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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Sheath Testing 11kV Cables Prior to Substation Connection
March 19th, 2020Pictured: Sheath Testing 11kV Cables Prior to Substation Connection
Images Courtesy of: Andy Dresser GCGI IEng MIET – Director at ASD Power Services Ltd
11kV Cable Sheath Testing
With the weather nice and dry outside ASD Power Services were out doing some cable sheath testing for a customer.
A pre-connection witness test for a new 11kV substation connection. All went nice and smooth with a good test on each cable run. Another satisfied customer.
asd power services ltd
ASD Power Services Ltd, established July 2016, are based in Newbury, Berkshire and offer the following services:
- (SAP) Senior Authorised Person (11KV)
- Auditing of Electrical Distribution Networks both LV and HV
- Maintenance inspections on electrical installations, including none intrusive IR Inspections
Director Andy Dresser is a Senior Authorised Person (SAP) and has over 25 years of experience in the Electricity Distribution business including network design, project management, auditing, people management, operational engineering, network construction, control engineering and procedure development.
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. ➡
88kV 1000sqmm Brugg Outdoor Cable Terminations From Transformer to GIS
March 4th, 2020Pictured: Brugg Outdoor Cable Terminations From Transformer to GIS
Images Courtesy of: Frikkie Pieterse – High Voltage Cable Jointer 132kV
Brugg Cables
Brugg Cables stands for integrated solutions, competence and Swiss quality in power distribution and data transmission.
High Voltage Cable Accessories for Polymer Cables
- HV Cable Terminations for Polymer Cables
- Outdoor terminations with porcelain insulator for polymer cables
- Outdoor terminations with composite insulator for polymer cables
- GIS terminations for polymer cables
- Dry type plug-in terminations for polymer cables
- Transformer terminations for polymer cables
- HV Cable Joints for Polymer Cables
- Slip-on joints for polymer cables up to 72.5 kV
- Slip-on joints for polymer cables up to 145 kV
- Slip-on joints for polymer cables up to 170 kV
- Slip-on joints for polymer cables up to 245 kV
- Slip-on joints for polymer cables up to 550 kV
High Voltage Cable Accessories for Oil-filled Cables
- Cable Terminations for Oil-filled Cables
- Outdoor terminations with porcelain insulator for oil-filled cables
- Outdoor terminations with composite insulator for oil-filled cables
- GIS terminations for oil-filled cables
- Transformer terminations for oil-filled cables
- Cable Joints for Oil-filled Cables
- Straight-through joints for oil-filled cables
- Stop joints for oil-filled cables
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 Substation Cable Terminations (33kV EPR XLPE Single Core 300sqmm, 400sqmm, 500sqmm)
March 4th, 2020Image Courtesy of : Remus Bidireac – 11/33kV Cable Jointer at Schneider Electric
Pictured: Pfisterer Connex Substation Cable Terminations
Outgoing circuits are single cable/phase. Incoming cable feeders are multiple cable/phase, 2 each from 60MVA transformers 3 per phase from 90MVA transformer. All rated 33kV – current rating is circuit/cable dependant as different size and construction cables used.
➡ Special thanks to Martin Winterburn and Scott Crowley.
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.
Thorne & Derrick Specialist Electrical Distributor
Established since 1985, T&D distribute the most extensive range of LV, MV & HV Cable Jointing, Terminating, 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. ➡
