Blog
Thorne & Derrick’s POWER Blog is regularly updated with news, projects, videos, technical tips, training information, promotions, webinars, career opportunities and white papers.
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We focus on 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
We provide guidance and technical support for the installation of LV, MV & HV Cable Joints, Terminations, Substation & Electrical Equipment from our Key Suppliers including:
3M |
CMP |
Ellis Patents |
Nexans Euromold |
Elastimold |
Pfisterer |
Prysmian |
Alroc |
CSD |
Roxtec |
CATU Electrical |
Cembre |
Lucy Zodion |
ABB |
Emtelle |

With Photo Blog contributions from our social network of 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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You are currently filtering by: Duct Seals
Published 20 May 2025
How Do I Select a Duct Sealing Solution? At Thorne & Derrick, we pride ourselves on working with industry leaders to deliver innovative, reliable, and compliant solutions to our customers. In this edition of Ask the Experts, Ian Joynson, Technical Specialist at Filoform, talks all things duct sealing —...
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Published 23 Apr 2025
From CSD Sealing Systems The recent fire at the electrical substation next to Heathrow Airport, which led to its temporary closure and disrupted thousands of flights reminds the industry of the importance of critical fire protection measures in substation environments. Thorne & Derrick are Approved Main UK Distributors for...
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Published 27 Feb 2025
Cembre EWO Cable Entry System The new EWO series cable duct entry seal systems stand out with the Cembre modern design and innovative features. Cembre technical team has developed a special cable transit frame with a slim, compact structure that provides excellent IP66 protection, thanks to its unique over-moulded...
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Published 13 Feb 2025
Nofirno Duct Seal System CSD Technical Services have been involved in a key renewable energy project since 2020, whereby they have been specified for duct seal entries across a huge onshore substation site. The sealing of three additional 250mm cable entries, each containing a 1x120mm cable, was requested by...
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Published 18 Dec 2024
By Jason Hood, Global Segment Manager – Infrastructure Roxtec International AB Abstract With recent reports indicating an increased threat of extreme weather related events and rising sea levels due to climate change, critical infrastructure is expected to become more threatened by water ingress and flooding. For communication infrastructure, including...
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