- Why ULC?
- R&D Services
X-ID CROSS BORE DETECTION SERVICESOur patented acoustic technology detects cross bores from within gas mains and services. Learn More
LIVE GAS MAIN INSPECTION
We are leaders in the deployment of camera and crawler systems into live gas mains. Learn More
PORTABLE EMISSIONS RECOVERY
Our drawdown compressor technology helps gas distribution utilities reduce emissions. Learn More
AIM: AI-POWERED UTILITY MAPPING
Using vehicle-mounted cameras along with AI and Machine Learning to map electric distribution poles and pole-mounted assets. Learn More
CIRCUIT BREAKER RACKING ROBOT
Breaker Racking RobotAutonomous mobile robot designed to rack and unrack large breakers within substations. Learn More
ELECTRIC CONDUIT INSPECTION
Our field service teams provide video inspection of conduits prior to cable pulls to identify obstructions and pinpoint damages. Learn More
Machine Learning for Jacket Foundation Inspection
ULC used machine learning to enable more efficient inspection of jacket foundations at the Block Island Wind Farm. Learn More
Electrical Conduit Inspection Services
Our field teams provide internal inspection of conduits to pinpoint obstruction and damage prior to cable pulls. Learn More
Robotics & Technology Development
We work with leading energy companies to develop, commercialize, and deploy robotic systems and technologies that support the construction, maintenance, and inspection of infrastructure. Learn More
- Products & Services
Live Gas Main Inspection Cameras
CISBOT: Oxford Street, London
Industry: Gas Distribution
Location: London, UK
Main Diameter: 18″ Cast Iron
Main Length: 1.3km
Project Length: 12 Weeks
Business Areas Addressed:
- Pipeline Remediation
Following an initiative to strengthen critical segments of its gas distribution network, Cadent enlisted the help of ULC Technologies’ CISBOT, a robot which remediates aging joints in cast iron natural gas mains across the UK and US.
The project scope included the remediation 1.3km of 18” cast iron main, which had a history of leakage at its joints, and was scheduled to take place over the course of 12 weeks.
With just 12 excavations made, CISBOT renewed 357 joints under live conditions and extend the life of the critical pipeline which delivers gas to businesses and residents along the busy city street.
The project took place in the West End of London, on Oxford Street, a high-profile location trafficked by 4 million people each week.
Due to the location of the project, it was crucial that the gas remain on in order to continue service to local businesses, especially during the busy holiday shopping season. With such heavy pedestrian and vehicle traffic, as well as events being held in the area, it was also important that the job site remain small and as unobtrusive as possible.
“CISBOT has enabled us to deliver the work in weeks rather than months and with fewer and smaller excavations. We were also able to keep the gas mains live while doing our work. Using CISBOT also helped us keep costs down.”
James Harrison, Head of London Operations, Cadent
Cadent achieved multiple goals by utilizing CISBOT to renew the large diameter cast iron gas main along Oxford Street.
Compared to traditional means of rehabilitation, which would have required the shutting down of gas service as well as closed portions of the street, CISBOT allowed Cadent to keep gas flowing to their customers and the heavily trafficked Oxford Street open to the public.
CISBOT eliminated the need for 343 excavations and completed the project on time, saving Cadent nearly 3 years of costly and disruptive work.
In addition to meeting its deadline, the project enabled great reductions in resource requirements, operational costs, and greenhouse gas emissions caused by vehicles queueing in traffic for extended periods of time as well as emissions caused by traditional heavy construction vehicles.
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