Electrical Precautions: General
Avoid getting grease on electrical components and connectors. Grease collects dirt, which can cause electrical tracking (short circuits) or high resistance.
Handle printed circuit boards (PCBs) at an electrostatic discharge (ESD) work station only. Hold printed circuit boards by the edges only.
WARNING:
ESD wrist straps should never be worn when working with High Voltage (HV) components.