Slingco’s Catchblock Gets Network Rail And National Highways Approval
Published 19 Oct 2022
Thorne & Derrick, distributors of a range of Cable Pulling & Laying equipment, are pleased to announce that Slingco’s innovative Catchblock has received formal approval from Network Rail and National Highways (formerly Highways England).
In addition, National Grid has now endorsed the use of the Slingco Catchblock system.
Catchblock
OHL catenary roller system
Catchblock from Slingco is a system for replacing and recovering overhead conductor cable and makes some pretty big claims, including reducing disruption, risks of accidents and costs during replacement of conductor cable.
Nick Dykins, Managing Director, reported: “Our single system has been fully and permanently approved by Network Rail and National Highways.”
“In addition, Network Rail has approved temporary certification for our Catchblock twin system for 12 months. For our utilities contractors this means the seamless replacement of cable with minimal disruption to infrastructure.”
Catchblock is now supplied in two versions – UK and export to meet growing national and international demand for this product.
Catchblock from Slingco is approved by Network Rail and National Highways for OHL Conductor replacement.
Lightweight, robust and easy to deploy, CatchBlock helps to increase efficiency and reduce costs.
REDUCED DISRUPTION
CatchBlock is an innovative OHL catenary roller system. Designed to deploy a twin-rope system, it allows the recovery and redeployment of broken conductors without the need to take possession of road/rail or client/third party property or infrastructure.
REDUCED ACCIDENT RISK
CatchBlock significantly reduces the need for erection and dismantling of scaffolding – cutting down the risk of accidents and harm to site workers.
REDUCED STRINGING COSTS
The reduced need for scaffolding, ease of deployment, and the ability to recover and redeploy, results in a faster, more efficient operation. With fewer hours of effort and less equipment required, Catch Block can deliver substantially reduced costs.
TRUSTED INNOVATION, OUTSTANDING SUPPORT, BESPOKE SOFTWARE
In addition to our complete engineering support service, we offer bespoke software for the CatchBlock system to replace spreadsheet calculations. Intuitive and easy to use, this software needs only limited training to enable site staff to complete regulatory checks. The CatchBlock system has been rigorously trialled and tested.
At no point has there been the need to take out possession orders for property or infrastructure, even with a failed conductor.

CatchBlock has received formal approval from Network Rail and National Highways
CABLE SOCKS & PULLING PRODUCTS LV MV HV
Complete range of LV, MV and HV cable pulling products for installation and enabling cable jointing in trench or ducts including LV, 11kV/33kV medium voltage (MV), 66kV/132kV high voltage (HV) and EHV transmission and distribution cables up to 400kV.
Thorne & Derrick distribute the most extensive range of Cable Installation & Electrical Distribution Equipment to the Power Transmission & Distribution industry in the onshore and offshore wind, solar, rail, oil/gas, data centre, battery storage and utility sectors.
We service UK and international clients working on underground cables, overhead lines, substations and electrical construction at 11kV and up to and EHV transmission and distribution voltages.