Client Case Study
Horizontal Directional Drilling for the installation of EV Charge points at the The Hospice of St Francis in Berkhampsted, Hertfordshire, ensuring minimal disruption to their daily operations and maintaining a tranquil environment for patients and visitors.
Client:
EV-ON
installation of 5 EV Charge points
50 metres
Crossing:
Car park and landscape gardens
Drilling Suggestion:
Multiple cable ducts and cabling
Constraints:
Minimal disruption to daily operations and maintain a tranquil environment
Rig used:
Vermeer D9X13
Installation time:
1 day
EV-ON are EV Charging Installation Specialists who are recognised by industry compliance organisations and OZEV approved installers. They provide complete EV Charging Installation for residential properties, businesses and organisations. Their EV charging installation services offer a complete and bespoke commercial EV charging solution, which includes full design and installation to meet your business, fleet or residential premises requirements
Given the considerable distance between the main electrical intake room and the proposed charging points, coupled with the requirement to navigate through critical areas such as the busy main entrance and gardens, careful planning of the cable installation was imperative to achieve a successful, low-impact, minimal disruption installation.
EV Charger installation points at the The Hospice of St Francis in Berkhampsted, Hertfordshire, ensuring minimal surface disturbance and disruption to daily operations and maintaining a tranquil environment for patients and visitors. Our turnkey approach included careful planning, civil ground works, and HDD trenchless drilling to minimise disruption and maintain a peaceful environment. Given the requirement to navigate through critical areas such as the busy main entrance and gardens, careful planning was imperative to achieve a successful, low-impact installation.
EPS Trenchless Installations took full responsibility for all groundwork activities on this project, ensuring a seamless and efficient operation from start to finish. Our team professionally managed the preparation phase, including the precise excavation of entry and exit pits, essential for the accurate alignment of underground drilling and completion of the installation. By handling the groundwork internally, we maintained complete control over quality, safety, and timelines, guaranteeing that every aspect of the site preparation met the highest standards of performance and compliance.
The project began with a detailed survey, utilising remote technology and online resources to study geological information and to locate existing underground utilities.
With all checks successfully completed, the EPS specialist horizontal drilling rig was set in position looking ahead at the 50-metre distance to the exit pit ready for the directional drilling process to start.
When the drilling process commenced, our operator carefully added solid rods to the drill, assuring the precision of our predetermined trajectory. This process is crucial to accurately follow the route we’ve set, ensuring a seamless underground installation.
A specialised location system (DCI Falcon F5) guides the drill head at approximately 1.2 meters below the surface, providing us with essential data on its position and direction. This allows for real-time adjustments, keeping the drill process precisely on course.
The drill head emerges at the exit pit, marking a successful completion of the 50-metre drilling phase. It’s now primed for the attachment of the ducting, initiating the back-reaming process.
The drill is fully retracted, presenting multiple cable ducts that are attached to the drill head. This determines the successful completion of our well-orchestrated drilling operation that has saved multiple days open cut trenching, which would cause major disturbance and closure of the main entrance.
The main supply cable and EV charge point circuits are in place, nestled securely in a concrete bed. They stand ready for the next step: installing the GRP enclosure and the new fuse board. This setup not only supports the immediate project but also accommodates potential expansion with additional electric vehicle charger points in the future.
With five prefabricated 100kg concrete bases in position, each destined to hold an EV charge point pedestal. Using these bases allowed us to perfectly level and align each charge point. The incorporated electrical cable ducting between each base ensures a future-proof solution. It offers the flexibility to replace cables easily should the need arise, guaranteeing a long-lasting installation.
The pedestals and lamp post lighting take their place, and the trench backfilling begins, bringing the project to completion
The strategic use of HDD drilling ensured the main service installation process was unobtrusive and completed in one day keeping disturbances to hospice operations at a minimum. The underground cable installation preserved the hospice’s tranquil landscape, maintaining the comforting environment for residents and guests and with minimal environmental impact. The new EV charging facilities efficiently cater to the needs of visitors and staff, showcasing the hospice’s commitment to sustainability and convenience.
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