Earthing Studies

We worked closely with another well known engineering company to provide specialist earthing study on a earthing system consultancy for a Gas Terminal, Co. Mayo. The Terminal is an on-shore gas processing facility that will provide up to 60% of Ireland’s gas at peak supply. Premium Power conducted an engineering study to determine if earthing grids installed at the facility were compliant with IEEE80.


The Challenge

The Terminal was constructed on an excavated bog. The majority of the terminal site was constructed on bed rock which is not conducive to a suitable earthing system. Earth grids were therefore installed in bog soils adjacent to the terminal site but at a distance away from switchrooms. Premium Power were engaged to determine if the earth grids would create dangerous touch and step voltages during electrical faults.

How we Helped

Premium Power conducted a detailed analysis of the earthing grids at the terminal site. A software simulation was developed that reflected the characteristics of the soil and the copper conductors placed in the ground at the terminal site. The software model was utilised to analyse the touch and step voltages that would be observed during faults.

“During our earthing study we modelled the earth grids and were able to identify that the earth grids designed were within the limits imposed by IEEE80. These studies are of critical importance in the design of substations and ensure the safety of workers both within and outside of the substation fence boundary."
Alan O'Kelly

The Result

During the earthing study Premium Power determined that the earth grids were sufficient to ensure that touch and step voltages were within limits guided by IEEE80. As a result, the client did not have to make alterations to existing installations and the proposed fencing off of the ground above the earth grids or the placement of rock or crushed stone was not required.

 

Contact us today about carrying out a earthing study

Recent News & Events

arc-flash-risk-assessment-ppe

What is Arc flash and how to avoid it

Arc Flash An Arc Flash is an explosive release of energy caused by an electrical short circuit between two energised conductors or an energised conductor and earth. The discharge of ...

Read More

Electrical Engineering Careers Fair

We will be at the Electrical Engineering Careers Fair at Technological University Dublin (DIT) on Monday the 18th of November. The event is taking place in Gleeson Hall at the ...

Read More
2020 with loading bar

Round up of 2019

As 2019 draws to a close why not take a look back on everything that has been a topic of discussion during the year. Blogs and articles Throughout the year ...

Read More

Please activate some Widgets.

What We’ve Done