Focus on the Build Blog this time around has been firmly on progress with cabling and containment, which continues to develop across the entire site.
A hefty quantity of the largest internal cabling is now all in place, totalling around 8 tonnes. This will now be terminated, along with a host of smaller internal cabling, while additional large external cabling is run in thereafter, as we head ever closer to energisation at London East.
Weekly overview
We’ll get straight into the photos again this time around, as we take a look at cabling and containment developments on-site at NLE.
Containment has now firmly breached into the exterior areas of the new site, with the runs to the four generators taking shape hereAnother view of the generator containment as it works its way around to the point of entry on each gen setA closer view of the twin ladder runs out to the generators, to account for the large quantity of cabling required to connect these units back to the main switchboards and controllersWhat look to be simple drops across to the generators actually required considerable effort, as solid concrete and brickwork edging had to be excavated to allow for the ladder to pass through to the required locationOn the other side of the front compound, the twin ladder runs to the transformer have started to be installedHere we see the supporting slotted channel being prepared for installation on this solid block wall, which will house the transformer cable runs as they pass into the buildingThe external skin of the building has been modified to allow cabling to enter and pass along this routeHere’s a view of the uncovered cable ladder which sits under the floor in the ground floor access corridorHere we seem a temporary blanking panel in place until the ladder is ready to pass through the building – additional tray is being run in to hold AC pipework for traditional systems that will support supplementary areas of the buildingThe transformer base is now ready for the installation of the GRP enclosure, and the transformer itselfThis is a view inside of LV Room B, as some of the large ~300kg inter-room cables are run in, which will link the LV boards for various functions / reasons – they are simply laid in loose at this point in timeThis is the drum of cabling for connecting out to the generators, which clocks in at 2.2 tonnesOne of the first drums to be emptied – this was a 1.8 tonne spool, which is now all run in under the floor between the LV rooms – this will be modified and become an outside table for clients to useAnother finished drum, slightly smaller this time, equating to around 1.2 tonnesA look into LV Room A, with the cabling being pulled into its trefoil cleats A view into the main LV Room cabling route as they enter LV Room B, showing the cleats as they hold the cables down to the floor mounted channelAnother view into LV Room B as the routes continue to take shape, and the tails are fed all the way into the boardsEarth cable being pulled into the floor, which again will interconnect the LV RoomsA view into LV Room A, as the earth cables are laid into position ahead of cleatingHere we see the earth cabling being pulled into its cleated arrangement, which brings this main route to its full stateA look down the main cable route between LV Rooms, showing the multiple trefoils and earthing bundles and they run between the two main boards
As you can see, the main focus here has been on continued progression with cabling and containment, which will continue into the next instalment of the Build Blog.
As always, other works have of course been underway, both in the development of London East, and elsewhere across our ever-growing operation, however we’re keeping this post concise and on topic.
What’s next?
As with the previous ‘what’s next?’ update, we’re looking at more of the same over the next few weeks. We have a vast amount of cabling and termination to undertake, which we hope to see nearing completion by the time we next post to the Build Blog.
We’ll also be moving onto further work on fire and VESDA systems, and will be moving ahead with commissioning on cooling systems, as well as continued work on power, such as the roll out of ‘small power infrastructure’ (supplementary building-wide power sockets for cleaning equipment etc).
