Hi Michael
Take a look at AS 5732:2015. Electric Vehicle Operations Maintenance and Repair, are you are looking at electric truck/bus maintenance? I spent a number of years servicing and maintaining battery electric forklifts/etc these typically operate at much lower voltages than EVs (24V, -72V versus 600v or more for EVs)
Take a look at this site for some available tools for use on that range of voltage https://electricalfactory.com.au/product-category/ev-maintenance-safety/

Worksafe have produced some guidelines for EV charging which might be of interest too
https://www.worksafe.govt.nz/laws-and-regulations/regulations/electrical-regulations/regulatory-guidance-notes/electric-vehicle-charging-safety-guidelines/

This might be of interest Michael

UK Transport Engineer - EV Safety In The Workshop

Above In PDF

Video - EV workshop safety according to French standard UTE C18-550.

This set of courses might be of interest too, and can be completed extra-murally

Industrial Battery Electric Vehicle Maintenance Course

NSW SafeWork EV Hazard Info