[Celticelement] Risk of electrical shock from instrument HV

Dear all, Following the incident with the Element 2 and the water ingress to the duct work I need to make you aware of the risk associated with water leaks and discharge of high voltage (HV) from the instruments. The Triton, Elements, Neoma and Nu Plasma 2 all use direct current (DC) HV supplies to their electronics, lenses and magnets. There is a risk that this HV will discharge if the supplies are submerged. Given that leaks are common in CELTIC there is an inherent risk of electrocution if you were to make contact with a puddle of water that was also conducting from the HV of the instrument. As such, if you come to the lab and find a puddle of water on the floor near one of the mass specs you must inform me immediately. Ensure that other lab users are aware until I arrive and can isolate the HV and make it safe. Cheers, Edward — Dr. Edward Inglis Office 2.26A School of Earth and Environmental Sciences Cardiff University Main Building, Park Place Cardiff CF10 3AT Office: +44 (0)29 2087 79469 Lab: +44 (0)29 2087 74326 Email: inglise(a)cardiff.ac.uk [page1image2912240.png]