A floating (IT) or unearthed electrical system has no path to ground for a fault current to pass and as up to 98% of electrical faults are earth related, it stands to reason that unearthed systems are demonstrably safer than other conventional wiring systems.
An un-earthed wiring system removes a person from potentially becoming a path to ground in an electrical safety circuit. This fact has been recognised in the UK where it is mandatory for any construction worker to use an isolation transformer to power power tools and equipment. However, to reduce the risk the voltage has been reduced to 110V but all still without any protective equipment to guard against the 1st or significantly the dangerous 2nd fault condition. In the IT earthing system the 1st fault is not reguarded as dangerous as there is no path to ground but the 2nd fault is very dangerous.
Unearthed electrical distribution systems represent the safest and most cost effective model and when an additional layer of electrical protection offered by the RVT is utilised, detection of the 'non dangerous 1st fault condition' is possible effectively removing the person from risk and dove-tailing very well with the ALARP approach. These enormous benefits are now able to be fully realised with WWEST's RVT providing new benchmark levels of electrical protection with the significant difference: it operates without the requirement for an earth-path to isolate.
The RVT invention and methodology has been uniquely configured to provide enhanced electrical protection within both earthed and unearthed wiring systems, dramatically improving electrical safety for personnel and equipment.
For further information email us at; Info@wwest.com.au
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