CABLE SAFETY | Technical Resources & Innovations
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CABLE SAFETY | LV TO 400KV
Safety is critical when installing cables - today we are discussing methods of ensuring safe LV MV HV underground power, array and subsea cable installations.
Thorne & Derrick International distribute the most extensive range of Cable Pulling & Laying Equipment to enable the installation of LV, MV HV Cables into underground trench or duct – products are also stocked for fibre optic blowing, OHL stringing, subsea trenching, offshore umbilical installations and pulling armoured cables onto cable tray.
WHAT IS FOS?
Factor of Safety (FOS) is used to ensure sufficient break load to handle working load spikes - it is critically important that all devices and tools used for cable pulling are rated for the working loads expected on each cable pull.
Break Load must equal or exceed the Working Load x Factor Of Safety.
Safety is our primary concern.
Inspecting cable socks is not an exact science, but is crucially important to ensure safe cable pulling operations, maximum grip strength and longevity.
There are a number of variables that can weaken cable socks that are not immediately obvious on visual inspection. However, there are some important and simple checks that you can do routinely to mitigate product wear, deterioration and reduce potential accidents.
Swivels designed for use in stringing high tension wires for electrical transmission and distribution. Line Pulling Swivels are important in pulling when the lines develop torsion during the installation.
Use of a swivel will release torque and prevent it from reaching dangerous levels, which can cause damage to the cable or cable socks.
We also offer a ‘bull nose’ style swivel designed for underground and overhead applications.
GUIDE TO CABLE PULLING IN DUCT
GUIDE TO CABLE PULLING IN TRENCH
STABLE CABLES FOR HV JOINTING
The Vicera APU2.0 Jointing Stand provides stable cables for HV Jointing & Termination - easy, ergonomic and efficient with a wide range of clamp adjustment options to provide stability for jointers when preparing cables in trench or substation up to 80mm diameter.
TECHNICAL RESOURCES
See our online library of the Top 20 Cable Installation Blogs featuring our suppliers Slingco, SEB International, Centriforce and Nexans.
How Do Cable Socks React To Salt Water?
Cable Pull Calculations – Installing & Pulling Heavy Cables
Safe Pulling of Cables Using Manual Laying
Lace Up Cable Socks – A Guide For Users When Pulling Cables
A Cable Duct Laying Guide From BT Openreach
Stokbord®Drum | 33kV Cable Protection for MV Cables
Cable Drums | Recommended Transport & Storage
Pictured: SEB JT20 | 20 Tonne Cable Drum Jack Towers supplied by Thorne & Derrick to support the safe on-site handling of LV-EHV cable drums at National Grid. Robust engineered construction with hydraulic jacks and adjustable height spindle support blocks.
Pictured: SEB AW1000 | Customised FO Cable Winch supplied by Thorne & Derrick to NGE to support the pulling-in of high-speed fibre cables to connect all 6 local authority areas in the Liverpool Region - the Backhaul project will deliver Gigabit internet connectivity to a diversity of key economic activities.
CABLE ACCESSORIES
11KV 33KV | The Nexans JTS & MONO Jointing & Termination System provides the most cost-competitive option to power contractors: the MV Cable Accessories manufactured by Nexans are tested in accordance to CENELEC HD629.1. The internationally recognised quality standard ensures power system reliability and outage reductions when installed in accordance with the manufacturers instructions by Competent cable jointers.
CABLE TOOLS
Ex Stock Innovation Tooling to facilitate the safe and reliable preparation, cutting, spiking, termination, jointing and installation of cables.
RELATED PRODUCTS
CABLE TERMINATION, JOINTING, PULL-IN & ELECTRICAL EQPT UP TO 66KV
Thorne & Derrick are specialist distributors of LV, MV & HV Cable Installation, Jointing, Earthing, Substation & Electrical Eqpt – servicing UK and global businesses involved in cable installations, jointing, substation, overhead line and electrical construction at LV, 11kV, 33kV and EHV.
We supply the Power Transmission & Distribution industry in the onshore and offshore wind, solar, rail, oil/gas, data centre, battery storage and utility sectors.
Product Categories: Duct Seals | Cable Cleats | Cable Glands | Electrical Safety | Arc Flash Clothing & Protection | Cable Jointing Tools | Cable Pulling & Laying | Earthing | Feeder Pillars | Cable Joints LV | Joints & Terminations MV HV | Cable Transits | Fuses MV HV | Cold Shrink
Since 1985, T&D have provided an outstanding service to UK and export customers – we are highly customer responsive and absolutely committed to providing a world-class service. We offer 100,000+ products from 100+ manufacturers - a multi-million pound stock holding provides complete global supply solutions.
