In recent years, Vermeer has found another target for excavating with Trenchers, thus expanding the possible fields of application for these machines.
We are talking about wind farms.
This is an area in which investment – as with solar power plants – has increased dramatically in recent years. Now the technology in our possession allows us to build mini wind farms in our homes, however the more plants the greater the investment possibilities.
How can a trencher be useful in the construction of a wind power plant?
The other alternative for these excavations, the classic excavators, are not always recommended. They are cheap but not as efficient as a trencher. Obviously the Trenchers are used for laying cables around the wind turbines, thus creating an underground network.
For medium-large power plants, trenchers are a possible optimal solution.
Alternatively, if there are roads, bridges or uneven terrain, the no-dig technology is an excellent choice as they allow you to dig horizontally for hundreds of meters.
“A challenge in wind power cable installation is the multiple pass required using traditional excavation methods. Vermeer designed the CL80 cable-laying to sort, configure and lay three cables, a ground cable, a fiber optic duct and a tracer cable. The tool also lays and secures the three cables in the specified configuration inside the trench all in one pass “
(Mark Cooper, director of excavation specialties for Vermeer)
The accessory is designed to work with the Vermeer T655. It features a series of baskets that rotate in a circular motion, removing more debris in the trench than a normal accessory. It has a digging width of 55.9 cm, 61 cm or 71.1 cm, depending on the size of the basket used.
There Vermeer designed the CL80 to increase the efficiency of installations in wind farm lines. As they descend into the trench the cables begin to line up in a triangular formation, becoming tighter upon arrival.
So we have to dig the trenches to lay the cables in our wind turbines. Nothing else?
There is a problem with wind farms, which has recently shown its threat in the US and Canada: lightning protection.
To reduce damage to turbines there is a technique that requires laying cables with conductive concrete. Sun-Earth produces an economical and long-term solution to the question. A conductive concrete developed specifically for locations where resistance is high and access can be difficult. The recommended design for an electrode system with concrete consists of a 60 meter long perimeter combined with four radial electrodes 30 meters apart, installed at a depth of one meter above the ground.