AET1 SWE Practice Test 2026 – Complete Exam Prep for Avionics Techs

Grounding for portable electronic test equipment is governed by the National Electrical Code. The NEC sets the safety rules for electrical installations and equipment grounding, including how portable gear should be grounded to create a low-impedance path for fault currents and bond the equipment to its protective grounding conductor. This helps protect personnel from shock and ensures that overcurrent devices trip as intended. The National Electrical Safety Code deals with safety for utility distribution systems in the field, not portable test gear, while the other options are not the standards used for this purpose.