HPS is capable to provide Overhead Line (OHL) maintenance, new build, and refurbishment, particularly for transmission from 132kV up to 400kV. Specifically, his can include tower painting, steel replacement, insulator changing, lightning protection, and restringing as well as slope and foundation reinforcement.
OHL are traditionally long-term infrastructure assets that require little regular maintenance over their 20-40 year lifespan. However, their repeated exposure to the elements means that ultimately components will require replacement or need updating as transmission and distribution technology changes. HPS can refurbish overhead lines, upgrade conductor, or replace damaged components.
Our team have experience in various upgrades such as polymeric insulators or conductor change outs. As conductor is updated, it may be heavier or have different characteristics. This can often mean that the tower is needing to support more weight that it was designed for. HPS can work with the tower designers and manufacturers to install new components and members in order to strengthen the tower allowing it to carry these increased loads.
Prevention is better than cure! HPS can provide regular line patrols and detailed condition reports of overhead line assets, ensuring any defects can be addressed before they cause a failure, creating power outages and affecting network reliability. Such patrols can include manned inspections, drone inspections and helicopter surveys alongside our partners. HPS would be happy to create a patrolling plan taking account of your particular needs such as frequency, timescale, length of line(s) to be inspected and budget available.