Blog
Testing 11kV Whipp & Bourne CV Switchgear Using Megger & Fluke Test Instruments
June 15th, 2021
Pictured : Testing 11kV Whipp & Bourne CV Switchgear Using Megger & Fluke Test Instruments
Image: Liam Medderman – Power Delivery Substation Tester (HV Authorised Person) at Transport for London.

The Whipp and Bourne 11kV CV switchgear, 3 phase type was subjected to a 6 yearly service examination and medium voltage test – the purpose of the test was to prove that the bottles which are located in the lower part of the switchgear would pass 1kV and 5kV Megger tests, (lowest reading permissible being 100M Ohms) using a Fluke tester.

Bottles can be tested by going from front side, to earth, also, at either end of the bottle to prove there is no leakage. All 3 phases passed the test with >3T Ohms and returned to immediate service.

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.
CT, DC Supply & Voltage Reference Section Between 2 X 2500A Air Circuit Breakers
June 15th, 2021
Image Courtesy of: Neil Probert – Voltage Management & Switchgear Specialist

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.
LV XLPE AWA Cable Terminations Using A2 Glands & Cembre Lugs Into J&P Switchboard
June 15th, 2021
Image Courtesy of: Daniel Probert – Senior Electrical Engineer at Johnson & Phillips (Capacitors) Ltd
Johnson & Phillips Capacitors are market-leading providers of Power Engineering Services throughout the UK and internationally.


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.
Terminating Wavecon Cable Into Schneider M1 Low Voltage Distribution Boards
June 15th, 2021
Image Courtesy of: Darren Street at D+R Jointing Services Ltd
Pictured above is a 300mm² wavecon LV cable which is being terminated onto a Schneider M1 LV board as part of a full substation installation – the install was carried out by two cable jointing/fitting teams.
schneider electric
Schneider Electric, with operations in over 100 countries, leverages its portfolio to make energy safe, reliable, efficient, productive and green.
While global energy demand is set to rise to support growing industrialisation and urbanisation, the scarcity of resources is becoming more pressing. Everyone needs to do more with less.

From its creation in 1836 as a producer of iron and steel, Schneider Electric has transformed itself into the global specialist in energy management.
With available and mature technologies that can save up to 30% of business-as-usual energy consumption, energy efficiency is a key component of this energy challenge.
Thorne & Derrick are distributors of the Schneider Electric range. Contact us for a competitive quote.

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.
ABB 80kV HVDC Light Cable (D-Link) – Single Core 630sqmm Connector Torque
June 15th, 2021
Image Courtesy of: Roger Wright – EHV Cable Jointer
Pictured: ABB 80kV HVDC Light Cable (D-Link) – Single Core 630sqmm Connector Torque
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.
