Electrical Risks

Questions to answer
1 – Does your experiment consume more than 32A (at 230 or 400 V) from a single supply?
2 – Do you have any live parts which are accessible to touch?
3 – Are all metal parts earthed by design?
4 – Do you use high voltages (>1000 V)?
Design guidance
Sockets in the test beam areas are all T13 (Swiss) type.
An earth bar is provided in each area, plan to connect to it!
Anything >1000 V is considered HV and needs a warning sticker.
Exposed live parts (even at extra low voltages) are not allowed, plan for IP2X (minimum) covers on all equipment, circuit boards and chassis.
Make sure your cables are correctly terminated:      • Crimped if using cable lugs      • Shielded banana plugs      • No stray strands of wire      • Correct electrical ratings for usage (voltage + current)Cables must comply with CERN rules, if unsure contact ep-safety-office@cern.ch