Keeping the rail network rolling

Sep 23, 2021

Keeping the rail network rolling!

Urgent temporary connection on a major rail route to London


A call came in for a temporary connection to be made on a client’s site to enable a new transformer to be installed. Failure of the temporary solution would have caused difficulty and inconvenience for many thousands of people on a major rail route into London.

 

Safe operating and cooperation between teams


Within minutes of the call, we had contacted the client and arranged to carry out a site visit to design a safe method of working. We considered the job and ensured that suitable equipment would be provided for our team. In conjunction with the clients engineering team, we established a switching program and designed a suitable means of safe isolation. This called for switching operations and locks to be applied in a correct order to prevent injury and damage.

 

Install, test and assess the temporary power source - success!


Very early one weekend morning, the specified equipment, provided by a global temporary power provider, was installed, tested, and signed off by HPES Technical Solutions Ltd. We followed the carefully designed method and ensured our risk assessments were fully considered. An allowance had to be made for a new structure, housing a new DNO transformer, to be craned in, and for the temporary HO7RNF cables to be removed after it had been set in place.

 

A week later, another early morning saw the equipment removed and set ready for collection. This followed another bespoke switching program. 

 

Happy client - happy us!


The client was happy that the whole backup operation was carried out safely and the method we designed was followed to the letter. The power down time for installation and removal was limited to a few minutes because of the equipment selected and the method that we designed. The successful outcome was testament to the experience and expertise we bring to our planning, and the commuters were none the wiser!

 

Credit to Dave, Nick and Rob for efficient work and getting out of bed very early!


14 Aug, 2023
Our mobile system Our system is flexible and allows us to work at large scale very easily to any required spec’. We can work on any temporary power system from a single power source with one socket upwards. It’s the larger jobs where things really come into their own and where the data feedback, and efficiency of what we do, come to the fore. We use a mobile device tool to capture information from the field. The raw data is transferred to a highly secure service provider, meaning the information is safe as soon as it is captured and uploaded. Any changes that are required to the data (such as if someone realises that they have entered a circuit description incorrectly) are tracked and time stamped. Information gathering and data clarity Multiple images are taken as we carry out our inspections and tests. These can provide the client with clarity or enhanced information if we have identified something that should be reported. Any things we feel are appropriate to flag are immediately made available to our client. We tend to use an online portal for convenience and efficiency, which is connected directly to our site gathered data. This portal displays the values we have measured, the matter that the inspector believes to require flagging and all the images we have taken of that part of the electrical system. If we can make a problem go away, we always try to. Things like a breaker being left at an incorrect setting or a loose lug can be quickly attended to. We always ensure that the appropriate people know what we have done. On-site documentation review During our time on site, we regularly review the test documentation that our teams are submitting. From questioning values that don’t quite “feel” right to the clarification that a system has been put together in the way described, the second eye over the data is an integral part of our process. Test documents collated With all information reviewed, we collate all the test documents. We also provide schematics giving clear “as built” drawings of the systems we have visited. This is supplied as a pack to the client electronically, usually while we are still on site. A flexible, scalable solution The next time you wonder if there is an easier way of testing a temporary power system when time is tight, and the number of systems is large, we can very quickly and easily provide a solution. Much better than trying to fill in paper documents in the wind and rain. Let us know your requirements, and we can devise the fastest way of considering the equipment that you are installing. Your headache of trying to get the testing done is one we are happy to take away.
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