E&S Grounding Solutions’ Post

Did you know that the main difference between grounding/ earthing system test methods is the ground reference? #didyouknow #electricalgroundingfactoids #electricalengineering #esgrounding #earthing #resistance #electricalgrounding #grounding #resistance #reference

Did you know that the current name for measuring the resistance of a grounding or earthing system against Remote Earth is called the "Resistance-to-Ground/Earth"? #didyouknow #electricalgroundingfactoids #electricalengineering #esgrounding #earthing #resistance #remoteearth #electricalgrounding #grounding

Did you know that resistance measurements of grounding and earthing systems have been performed since the early 1950's? #didyouknow #electricalgroundingfactoids #electricalengineering #esgrounding #resistance #electricalgrounding #grounding #earthing

Did you know that resistance measurements of grounding and earthing systems have been performed since the early 1950's? #didyouknow #electricalgroundingfactoids #electricalengineering #esgrounding #resistance #electricalgrounding #grounding #earthing

Did you know that one of the two sources for "Remote Earth" can be a large separate grounding system such as the utility companies ground? #didyouknow #electricalgroundingfactoids #electricalengineering #esgrounding #earthing #resistance #resistanceearth #electricalgrounding #grounding

Did you know that Clamp-On Ground Resistance meters can be used to confirm that isolated grounds are installed correctly? #didyouknow #electricalgroundingfactoids #electricalengineering #esgrounding #clamponmeter #resistance #electricalgrounding #grounding

An #EarthingSystem has a specific resistance to the surrounding soil, based on the system geometry (shape and size) and the characteristics of the soil. Both aspects show a frequency dependent behaviour, which means that the earthing resistance does not have the same value for each frequency. In that case we should speak of an #EarthingImpedance. In the picture below two curves for a transmission line tower foundation is given: 🔵 The frequency dependent behaviour of the tower foundation only 🔴 The frequency dependent behaviour of both, the tower and soil Why is this important? Read it here: https://lnkd.in/erTE65Dk #Transmission #Grounding #Transients #Lightning #OHL

The stretch of coastline from Dawlish to Teignmouth in South Devon is a rare instance where two passions and interests meet - those being geotechnics and the railways. Since the inception of the South Devon Railway by Isambard Kingdom Brunel in 1844, this stretch of line has seen a fair share of trials of then unproven technology and methods; from the infamous Atmospheric Railway and the later experimental ballast epoxy trials to mitigate against washouts of the track bed, alongside the novel approaches taken to reinstate this artieral route from Exeter to Plymouth after Storm Desmond in 2014. Sometimes though, sticking to known principles does a world of wonders. Both rock meshes and rock bolts have been utilised on this stretch to help shore the stability of the area’s iconic red sandstones - a lithology known for high porosity and block failure with an increase in pore water pressure. These means of cliff stability management are seen to great effect behind the trialing powercar of one of Great Western’s Castle Class units, 43186 ‘Taunton Castle’ as it heads to Exeter St David’s. More recently, the completion of the rockfall shelter adjacent to the northern portal of Parson’s tunnel is a major undertaking by Network Rail to provide a final line of defence to aid in the upkeep of this scenic stretch of line. Although these type of structures have been in use for several decades in remote areas of Scotland, it’s hoped that this structure will provide further robustness to a line already threatened by more powerful storms. #devon #railway #geotechnical #engineering #cliff #networkrail #cliffstability #civilengineering