Shallow Excavation Earthing Systems
The traditional mindset of designing electrical earthing systems is the usage of earth rods serving as the main electrode for dedicated electrical earthing systems and earth termination networks for lightning protection systems. High quality earth rod electrodes are certainly useful components in achieving a resistance value, however they have limitations. To maximise the usefulness of earth rod electrodes it is ideal to have them equally spaced proportionally to their depth, for example if the rods are 4m deep then they should be 4m apart from the next earth rod location. In areas where soil resistivity may be high, therefore making current discharge more challenging, this may result in very deeply driven rods, and this is not always possible. If there is rock beneath the surface then it is unlikely that earth rod electrodes will be able to be used without first having drilling rigs brought in to create boreholes. The same problem can be evidenced in a different way. In areas where underground train networks or other sub-surface infrastructure exist then driving rods deep into the ground is impossible; in a cruel twist of fate it often seems to be the case that depth restrictions often seem to also exist where deep rods are most required. Developed initially for Earthing Services’ work with a major telecommunications operator, Earthing Services’ shallow excavation solutions manage to achieve the target resistance value without going deeply into the ground.
To learn more about Earthing Services’ shallow excavation earthing solutions please feel free to get in touch through the contact page of this website or calling the office.