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Home » earthing systems

earthing systems

09/08/2019 By Ian Leave a Comment

Earthing System Design Procedure A Probabilistic Approach

Earthing System Design A Probabilistic Approach

What are the procedures for creating an HV Earthing System Design? Also, how might these differ from an LV Earth design?

Firstly, although the principles underpinning HV and LV earthing are similar, the approaches are very different.

Probabilistic Approach

The first huge difference is the recognition that HV electrical earthing design is probabilistic in nature. Whereas LV earthing is far less so. 

What do I mean?

[Read more…] about Earthing System Design Procedure A Probabilistic Approach

Filed Under: Earthing System Design Tagged With: CDEG HIFREG Software, Earthing Arrangements, earthing design, earthing systems, HV Earthing Protection, Step Potential, Step Voltage, Touch Potential, Touch Voltage

23/02/2017 By Ian Leave a Comment

Earthing Calculations for Safe System Design

Earthing calculations

Earthing Calculations regarding your safety – you’re overdue an update!

If 1-ohm is still in circulation on your documentation then this section applies to you.

Even though the Earthing Calculations for determining a safe System Earth (Ground) has shifted away from an arbitrary resistance figure, usually <1 ohm.  It’s still all too common to see this outdated measure of installed success appear on client/employer requirement specifications(ER’s). As part of the Earthing Calculations Design Safety brief.

[Read more…] about Earthing Calculations for Safe System Design

Filed Under: Earthing System Design Tagged With: BS7430, CDEGS, earth potential rise, earthing systems, Electrical Earthing System Design, EN 50522, EPR

20/10/2015 By Hugh Leave a Comment

Electrical Earthing System Design Separation

Soil Resistivity Separation of Earths in Earthing Grounding Design

During a recent training event held by SES Technologies for CDEGS (Current Distribution, Electromagnetic Fields, Grounding and Soil Structure Analysis). A finite element analysis software suite for Electrical Earthing System Design, a number of issues were discussed. But one that crops up time and time again in the UK was that old chestnut in Electrical Earthing System Design Separation.

[Read more…] about Electrical Earthing System Design Separation

Filed Under: Earthing System Design Tagged With: BS7430, CDEGS, Earthing system design, earthing systems, Electrical Earthing System Design, Finite Element Analysis, Finite Element Analysis Software

17/09/2015 By Ian Leave a Comment

How to avoid a stay at “Her majesty’s pleasure” Inspect your Electrical Earthing System

Electrical Earthing System Warning

So you’ve had your Electrical Earthing System designed by a professional, installed diligently by a competent contractor and had it verified to confirm the Earthing will protect lives in the event of a fault!  – Job done, right?

Nearly… but the story doesn’t stop there! [Read more…] about How to avoid a stay at “Her majesty’s pleasure” Inspect your Electrical Earthing System

Filed Under: Electrical Earthing Tagged With: automated monitoring system, BS7430, Critical Assets, earthing systems, Earthing/Grounding, EN 50522, enhanced corrosion, ground structures, ISO 55 000, remote monitor

06/08/2015 By Ian Leave a Comment

What is Remote Finite Element Analysis Earth Test?

Remote Finite Element Analysis Earth Testing

Earth Testing – We’re frequently asked by Critical Asset owners – “Do we really have to physically test our Electrical Earthing System?” [Read more…] about What is Remote Finite Element Analysis Earth Test?

Filed Under: Electrical Earthing Tagged With: BS7430, CDEGS, Critical Asset, Earth impedance test, Earth System, earthing systems, Electromagnetic Field analysis, Finite Element Analysis, finite element software, HIFREQ, Remote Finite Element Analysis Earth Testing

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