Video : What Makes Filoform The Best Low Voltage Resin Cable Joint?

Published 30 Jan 2019

Low Voltage Resin Cable Joint

Low Voltage Resin Cable Joint

  • uploaded by Chris Dodds Sales & Marketing Manager | Thorne & Derrick 

Cable Joints

Thorne & Derrick International are UK distributors for Filoform, a leading manufacturer of cable joints, duct seals and special resins for installation in the utilities, telecom, traffic, rail, fibre optic, street lighting and construction industries.

In the following overview we explain what makes a good cable joint and via video demonstrate how to install Filoform resin cable joints.

Firstly, lets examine the kit contents of Filoform resin cable joints.

Joints Tested & Certified

Cable Joints

Cable Joints

To European Standard

Filoform cable joints are approved in accordance with the standard DIN EN 50393 VDE 0278-393:2015-10 – test methods and requirements for accessories for use on distribution cables of rated voltage 0,6/1,0 (1,2) kV. This European Standard details the performance requirements and the test methods for type testing of cable joints for use with power distribution cables of rated voltage 0,6/1,0 (1,2) kV as defined in HD 603 or other relevant cable standards.

Injection Moulded Cable Joint Shells

Rigid and very strong snap-lock design forms an excellent seal and prevents resin leakage from the cable joint. Filform cable joints are designed and sized around UK manufactured steel wire armour cables (SWA) to BS5467 ensuring ample working-space for the jointer within the cable joint shell.

Transitions from PILC to XLPE, cross-core jointing and jointing of 3.3kV power cables can also be achieved with minor kit modifications.

Mechanical Connectors

Brass Tunnel Connectors

Brass Tunnel Connectors

Brass tunnel connectors provide straight connections on stranded or solid circular conductors (both copper and aluminium). The range-taking tunnel connectors permit the jointing imperial to metric and step-down transitions where dissimilar size conductors preclude the use of conventional crimp connectors.

No specialist jointing tools – fast and simplified jointing of cable conductors without resort to crimping tools and associated die sets is achieved by Filoform brass tunnel connectors.

Two Allen screws for each core ensure a sound electrical performance and an Allen key is also provided with each resin joint kit to ensure that everything needed to joint a cable is included in the one box.

Earth Braid Armour Continuity

Earth Braid Cable Joints

Armour Continuity Earth Braids

Wire Armour & Braided Cables

Tinned copper earth braid offers significant advantages over “single wire type” earth continuity systems in resin cable joint kits, which can fail if poorly positioned within wire armour cores that have “spread”. The flat, soft braid ensures good electrical contact and is insulated for extra protection – suitable for both wire braided and wire armoured cables.

Constant Force Springs

Cable joints move and expand due to earth shift and heat from electrical current. Constant force springs react to this movement and maintain a sound electrical connection between the steel wire armouring and the earth continuity braid.

Constant Force Springs

Constant Force Springs

Core Separators

Provide safe separation of cores and connectors within the resin joint.

Two-Part Cable Jointing Resin

Filoform cable joint resin formula is equally suitable for both LV and HV jointing applications and provides excellent adhesion to PVC, XLPE, polythene and paper cables. Supplied in “easy-mix” transparent 2 component bag.

Cable Joint Resins

Cable Joint Resins

Cable Jointers Instructions

Detailed, clear and concise cable jointing instruction sheets ensure there is no ambiguity about safe jointing procedures – less cable jointer error.

Cable Joints

Cable Joints – prior to resin pour with steel wire armour continuity across the cable by flexible copper earth braid, conductors jointed with mechanical range-take connectors

Thorne & Derrick International distribute the complete range of Filoform Resin Cable Joints for low voltage power, control, pilot and telecoms cable jointing.

Filoform Cable Joints - Connect Seal Protect


LV Cable Joints (Low Voltage Cables)

Thorne & Derrick stock and distribute LV Joints in Cold Shrink, Heat Shrink or Resin Cast technologies – multicore and multi-pair cable joints are available for immediate backfill and energisation of Low Voltage power, control and instrumentation cables 600V/1000V 3.3kV.

Complete range of LV Cable Accessories  ➡

Cable Breakouts | Cable Caps | Cable Lugs | Cable Cleats | Cable Trough | Cable Duct | Feeder Pillars | for 11kV/33kV/66kV networks see MV HV Joints & Terminations

Joints Terminations Connectors

Pfisterer | Nexans Euromold | Prysmian | Cable Joints & Terminations MV HV

Cold Shrink

Cold Shrink by 3M | Joints | Abandonment | Terminations | Low Voltage LV Cables