Approx. 1400 Invisirung® ladder sections have been installed to the 140 new ‘composite’ poles that connect the Dorenell Wind Farm to Scottish and Southern Electricity Networks’ (SSEN) Blackhillock Substation, near Keith.
Metreel were delighted to be appointed by Balfour Beatty (principal contractor) as the preferred fall arrest supplier for this project. SSEN and Balfour Beatty have developed an entirely new infrastructure solution that had to meet industry specifications in both the UK and Europe, this included modifying the pole structures to be less intrusive to the surrounding environment.
Each structure contains two composite poles that required a ladder system with built in vertical fall arrest system to allow maintenance work to be carried out safely but without the unsightly steelwork.
Due to the requirements for an ‘aesthetically’ pleasing system, Met-Track® believed that the Invisirung® ladder system was the best solution for this project, a system that offers all of the features and safety benefits of a standard industrial ladder but with minimal interference to the surroundings due to its slim line appearance.
The Invisirung® ladder sections were supplied to Balfour Beatty who installed each 24m composite pole with a 20m length of Invisirung® before being erected on the project site that spans a distance of 22km.
A specialist Erickson S-64 Air Crane helicopter was brought in from the USA to lift and install the poles, allowing the construction team to overcome the rugged terrain whilst minimising disturbance to the environment and community.