NETA ETT Level 1 study guide
NETA ETT Level 1 · Work through your exam, one topic at a time.
The NETA ETT Level 1 credential (Electrical Testing Technician Level 1, administered by the InterNational Electrical Testing Association) is an entry-tier certification for technicians who test, inspect, and commission power systems. It is aimed at people building a career in field acceptance and maintenance testing: technicians new to the trade, electricians moving into testing, and students in electrical power programs. The NETA ETT Level 1 study guide has 9 sections and about 2,721 words.
01Electrical Safety and Hazard Awareness
Electrical Safety and Hazard Awareness tests whether a Level 1 technician can recognize shock and arc-flash hazards, establish boundaries, and work under lockout/tagout and, when justified, an energized-work permit. The exam expects NFPA 70E vocabulary and practical judgment, not heroics.
340 words, about 2 min02Test Equipment Selection, Use, and Care
Test Equipment Selection, Use, and Care examines whether the technician chooses an instrument that is safe for the location, accurate enough for the measurement, and maintained so the reading can be trusted. Selection is not just range: category rating, true RMS response, input impedance, resolution, burden, and calibration status all matter.
348 words, about 2 min03Insulation Resistance and Polarization Index Testing
Insulation Resistance and Polarization Index Testing checks whether a winding or cable insulation system is clean, dry, and sound. The megohmmeter applies DC voltage and measures leakage current; the displayed resistance is voltage divided by current.
324 words, about 2 min04Low-Voltage and High-Voltage Circuit Breaker Testing
Low-Voltage and High-Voltage Circuit Breaker Testing covers mechanical condition, contact integrity, insulation, and trip performance. LV molded-case and power breakers are often tested for contact resistance, insulation resistance, and trip characteristics.
296 words, about 1 min05Protective Relays and Instrument Transformers
Protective Relays and Instrument Transformers tests whether the technician can verify relay operation and the CT/PT interface that supplies it. Relays are tested by secondary injection; CTs and PTs are checked for ratio, polarity, burden, and wiring.
273 words, about 1 min06Transformers: Ratio, Winding Resistance, and Insulation Testing
Transformers: Ratio, Winding Resistance, and Insulation Testing verifies turns ratio, winding integrity, and insulation condition. Ratio testing detects tap errors and shorted turns; winding resistance finds loose connections and unbalanced windings; insulation resistance checks dryness and cleanliness.
293 words, about 1 min07Grounding, Bonding, and Ground-Fault Protection
Grounding, Bonding, and Ground-Fault Protection tests the low-impedance path that carries fault current and the system that detects ground faults. The exam distinguishes grounding electrodes, equipment grounding conductors, bonding jumpers, and ground-fault protection.
285 words, about 1 min08Cables, Switches, and Motor Circuit Testing
Cables, Switches, and Motor Circuit Testing covers insulation, continuity, contact condition, and motor winding balance. Cable tests include insulation resistance and, where specified, time-domain reflectometry or high-voltage proof testing.
264 words, about 1 min09Test Records, Reporting, and Standards Interpretation
Test Records, Reporting, and Standards Interpretation tests whether the technician can produce defensible data and interpret it against the correct source. A report is not a list of numbers; it must identify the equipment, method, instrument, conditions, criteria, and conclusion.
298 words, about 1 min