Hello, I am working on an investigation and was wondering if you could help me with some information. There was an occurrence on a ship involving high voltage and am looking at the necessity of recommending training for the crew members. The crew was trained in 440V systems, but they were also working with 6.6kV systems. Do you know if there are different training requirements for working with the higher voltage levels? Also, are you able to list general differences in design, safety and troubleshooting between 440V systems and 6.6kV systems, or would you know where I could find this info?