Images Courtesy of: Douglas Page (Instructor & Cable Splicer at Hydro One Training and Development Services).
HV Cable Splicers: Douglas Page & Jeff Silliphant.
Application: 3M 44kV Cold Shrink Submarine Cable Joint (Single Core 250 MCM).
Location: Lake Couchiching, Ontario. Canada.
Please note aspects of the installation were unable to be photographed as 4 hands were required simultaneously to be cable jointing and no stand-in photographer was available.
Let’s start Cable Jointing….
1. The cable splicing barge comes alongside the buoy marker for a previously installed cable and pulls it up onto the barge, secures it, and anchors all four corners of the barge.
2. The “reel” barge backs up and connects to the cable splicing barge and anchors all four corners, the cable is pulled to the cable splice point and secured.
3. Both 44kV cables are prepared to manufacturers specifications, in this case they were prepared using Speedy Systems high voltage cable preparation tools not hand tools.
4. All of the 3M Cold Shrink Cable Termination kit parts are slid on the appropriate sides and the cable is crimped together.
5. 3M supplied silicon grease is applied by the HV cable splicers – we believe it was changed to colour red to determine if it was actually used in the event of a future cable splice failure.
6. Inner 3M Cold Shrink cable splice body is cold shrink installed without the requirement for a heat source associated with the jointing of cables using heat shrink cable terminations. Aligned with marker tapes previously installed, then the concentric neutrals are brought back across the cable splice.
7. In this situation the high voltage splicing design was to have the neutrals individually crimped to each other, a soft mastic bed is made for the crimp sleeves to lie in to prevent damage to the insulation shield.
8. After the neutrals are all crimped and the shaped into their final position for the cable splice.
9. Once shaped they are evenly spread out and held in place to prevent hang up points for installation of the outer jacket 3M Cold Shrink tube.
10. Very important, the cable jacket is abraded, then two rows of multiple layers of aqua-seal mastic is installed, then the outer jacket is cold shrunk on.
11. To enhance the water-blocking ability of the cable joint the HV cable splicer applies extra wraps of 3M mastic tape.
12. After the outer jacket is installed and sealed using mastic and tape then the submarine armour is wrapped back around the high voltage cable .
13. The submarine cable armour wires are then individually crimped together using Burndy crimping tools and then wrapped in mastic and tape.
14. The entire 3M Cold Shrink cable splice is covered in three layers of 3M Armorcast, (installed wet and sets solid). Then all anchors are pulled, the barges stay attached and the cable barge travels the route, paying off the cable to the end of the reel.
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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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Image Courtesy of: Andy O’Malley (IBEW 258 EHV Cable Jointer/Splicer).
“This is a stainless steel super sheathed 110kV cable in Brisbane Australia – the high voltage cable had an HDPE graphite coated outer sheath then a stainless steel sheath.”
“A PVC sheath was below the stainless steel then below that a copper sheath. Finally, inside the sheath layers was a 1600sqmm copper conducted XLPE cable.”
“Great project with the Energex boys,” comments Andy.
Confined Spaces Cable Jointing Using 3M Cold Shrink Straight Joint Splice (25kV)
3M Cold Shrink Terminations Connecting Nexans 12kV (MV) Cable Onto Copper Busbar
132kV Termination Using Pfisterer IXOSIL EST SUB Self Supporting Cable Termination
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. ➡
Image Courtesy of: Andy O’Malley (IBEW 258 EHV Cable Jointer/Splicer).
Location: Vancouver, Canada.
Jointer: Andy O’Malley
We have the greatest pleasure in showcasing this first example of Andy’s jointing expertise on our Photoblog – terminating medium voltage cable into S&C switchgear using Elastimold Connectors.
We have plenty more Jointers Blogs from Andy, including an image series featuring the pulling, laying and terminating of 138kV Southwire EHV cable using NKT cable terminations.
Jointing is in the O’Malley genes. Andy’s father Patrick inspired him to follow in his footsteps – we hope to soon run some “old-skool” photo’s from the family archive of Patrick’s splicing work.
Whether down the trench or up the pole, Andy is a key member of the Allteck team.
Allteck are international leaders in the design, construction, maintenance and upgrade of overhead and underground high voltage electric power utilities.
S&C Electric Company – Vista® SD Underground Distribution Switchgear
S&C Electric Company offers another choice in metal-enclosed gear.
Economical new Vista SD Underground Distribution Switchgear is the first practical solid-dielectric medium voltage switchgear with a visible open gap and field-replaceable bushings.
The elbow-connected MV switches and fault interrupters are encapsulated in an environmentally friendly solid-dielectric insulating material.
S&C Electric Company Blog – GridTalk
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. ➡
Images Courtesy: David Young – HV/EHV Cable Jointer at CRS Ltd
Pictured: Prysmian 132kV GIS EHV Cable Termination – Connector Welded & Cleaned
Prysmian 132kV
Prysmian BICON Cable Joints Cable Glands Cable Cleats Jointing Tools
T&D are distributors for Prysmian Cable Components which includes their range of Bicon cable joints, cable cleats, cable glands and jointer tooling for LV, MV and HV cables.
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. ➡
| Location | Sultanate of Oman |
| Client | CC Energy Development S.A.L (CCED) |
| Contractor | Best Oil & Gas Solution LLC and Al Haditha Petroleum Services S.A.O.C. |
| Products | Denso Paste™ , Densyl™ Tape and Denso PVC Self-Adhesive Tape 200™ – both tapes applied with a 55% spiral overlap |
| Date | August 2020 |
CC Energy Development S.A.L (CCED) is an independent upstream Oil & Gas Exploration and Production Company which has been operating in Oman since 2007. CCED has had considerable exploration success to ensure long-term sustainability.
Their operating footprint is in Blocks 3 & 4, one of the largest concession areas in the Sultanate of Oman. CCED brings significant exploration, development, and production experience in the oil & gas industry and is an important contributor to the hydrocarbon sector in Oman.
Facts about Block 3:
• The Block is situated in eastern central Oman and comprises an area of 5,911 km2.
• The main producing fields in Block 3 are Farha South and the two recent discoveries of Ulfa and Samha.
Facts about Block 4:
• The Block is situated in eastern central Oman and comprises an area of 23,212 km2.
• The main producing fields in Block 4 are Saiwan and Shahd.
Denso’s high-performance Petrolatum Tape System has been successfully used to protect CCED’s buried Oil & Gas pipelines for approximately 8 plus years.
The system comprises of Denso Paste™, Densyl™ Tape and Denso PVC Self-Adhesive Tape 200™ (yellow). Both tapes are applied with a minimum 55% spiral overlap. In areas of high soil stress, Denso PVC Self-Adhesive Tape 250 or 440 grade (outerwraps) or Denso Glass Outerwrap™ are available subject to the degree of soil stress, and would also be applied with a minimum 55% spiral overlap.
➡ T&D stock and distribute Denso Mastic Duct Seal | Densoseal 16A
Denso North America Inc. is a subsidiary of Winn & Coales International, a leading manufacturer of anti-corrosion coatings that include Protal liquid epoxies, Denso petrolatum tapes, mastics, primers, bitumen tapes, butyl tapes, hot applied tapes, and a full line of marine pile protection systems. Winn & Coales was originally established as a business in London, England, in 1883, and the first petrolatum tape manufactured in the UK was Denso tape, manufactured under license by Winn & Coales (Denso) Limited.
Denso tape was developed over 80 years ago for the “Long Life Protection” of buried steel pipelines against corrosion. The Denso SeaShield Marine Systems include fiberglass forms, epoxy grouts, underwater epoxies, injectable epoxies, petrolatum tape and wrap systems.
Sealing & Waterproofing of Cable Ducts Using Densoseal 16A | Thames Water Project
Denso Bore-Wrap | Prevent Coating Damage During Pipeline Installations
Thorne & Derrick are Specialist Distributors to the UK and international Construction industry to provide safe and reliable LV HV Electrical Cable & Power Distribution Systems up to 66kV – we are highly customer responsive and absolutely committed to providing a world-class service.
Contact our UK Power Team for competitive quotations, fast delivery from stock and technical support or training on all LV-HV products.
Key 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
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