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NETA NETA_2 Exam Syllabus Topics:

SectionWeightObjectives
Testing Procedures and Standards25-30%- NETA Maintenance Testing Specifications
  • 1. Visual Inspection Procedures
  • 2. Acceptance Testing Standards
  • 3. Electrical Testing Procedures
- IEEE Testing Standards
  • 1. IEEE 4 High-Voltage Testing
  • 2. IEEE 62.45 Low-Voltage Testing
- NFPA 70E Electrical Safety
  • 1. energized Work Permits
  • 2. Arc Flash Hazard Analysis
Documentation and Reporting10-15%- Reports and Certification
  • 1. NRTL Certification Requirements
  • 2. Test Report Writing
- Test Documentation
  • 1. Data Recording Procedures
  • 2. Test Results Interpretation
Electrical Theory and Fundamentals15-20%- Electrical Safety Principles
  • 1. Arc Flash Safety
  • 2. Personal Protective Equipment
  • 3. Lockout/Tagout Procedures
- AC/DC Circuit Analysis
  • 1. Ohm's Law and Power Calculations
  • 2. Three-Phase Systems
  • 3. Kirchhoff's Laws
  • 4. Series and Parallel Circuits
Testing Equipment and Instrumentation20-25%- Voltmeters and Ammeters
  • 1. Digital Multimeters
  • 2. Clamp Meters
- Grounding and Bonding Testers
  • 1. Earth Resistance Testers
  • 2. Ground Bond Testers
- Relay Testing Equipment
  • 1. Protective Relay Testers
- Circuit Breaker Testers
  • 1. Secondary Injection Test Sets
  • 2. Primary Injection Test Sets
- Insulation Testing Equipment
  • 1. Megohmmeters
  • 2. Hipot Testers
  • 3. Insulation Resistance Analyzers
Component Testing20-25%- Transformers Testing
  • 1. Excitation Current Tests
  • 2. Turns Ratio Tests
  • 3. Winding Resistance Tests
- Conductors and Cables Testing
  • 1. Hi-Pot Tests
  • 2. Continuity Tests
  • 3. Insulation Resistance Tests
- Protective Devices Testing
  • 1. Coordination Studies
  • 2. Overcurrent Relay Tests
- Switchgear Testing
  • 1. Contact Resistance Tests
  • 2. Circuit Breaker Timing Tests
  • 3. Dielectric Withstand Tests

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NETA Level 2 Certified Assistant Electrical Testing Specialist Sample Questions (Q67-Q72):

NEW QUESTION # 67
Duringprimary current injection testingof a low-voltage circuit breaker, the breaker trips instantaneously at
8× its long-time pickup setting, even though the instantaneous element is set to10×. What is the MOST likely cause?

Answer: B

Explanation:
CT saturation occurs when the CT core cannot accurately reproduce high fault currents, causing distorted secondary current. This distortion can falsely trigger the instantaneous element at a lower current than expected. NETA Level 2 technicians must recognize CT saturation as a common cause of unexpected trip behavior during primary injection testing, particularly at high multiples of pickup.


NEW QUESTION # 68
Which portion of an electrical transmission system experiences faultsmost frequently?

Answer: D

Explanation:
Overhead transmission lines experience the highest frequency of faults due to their direct exposure to environmental conditions. Wind, lightning, ice, vegetation contact, animals, and pollution all contribute to transient and permanent fault conditions on overhead conductors. Unlike underground systems, overhead lines are not shielded from weather-related events.
NETA Level 2 technicians must understand fault likelihood when interpreting protective relay operations, breaker trips, and event records. Many relay schemes are designed with reclosing logic specifically because overhead line faults are often temporary. This understanding supports proper commissioning, testing of protective devices, and evaluation of fault-clearing performance.


NEW QUESTION # 69
On a circuit breaker equipped with a solid-stateLSIGtrip unit, what does the"I"represent?

Answer: B

Explanation:
LSIG stands for Long-time, Short-time, Instantaneous, and Ground-fault protection. TheInstantaneous element provides rapid tripping with no intentional delay for high-magnitude faults. NETA Level 2 technicians must understand trip unit elements when performing injection testing and verifying protective coordination.


NEW QUESTION # 70
What is meant by adead-tank circuit breaker?

Answer: D

Explanation:
Adead-tank circuit breakeris designed so that the interrupter assembly and associated operating components are contained within ametal tank that is bonded to ground potential. Because the enclosure is grounded ("dead"), the tank is not energized during normal operation. This construction reduces touch potential hazards and provides a robust, grounded barrier around interrupting components.
This contrasts with alive-tank breaker, where the external housing or tank is atline potential, requiring greater external clearances and insulation coordination. From a testing perspective, NETA Level 2 work commonly includes verifying breaker integrity through insulation resistance, contact resistance, functional checks, and in some applications, power factor testing or vacuum bottle integrity testing (depending on breaker type). Understanding "dead-tank" vs "live-tank" is important because it influences safe work practices, test lead placement, and interpretation of results (particularly for insulation-related tests and grounding considerations).
NETA objectives emphasize technicians being able to identify equipment construction types and apply the appropriate test approach and safety controls, especially regarding grounded enclosures, bonding, and the management of induced or stored energy.


NEW QUESTION # 71
Which procedure ensures electrical equipment is completely isolated fromall available energy sourcesprior to testing?

Answer: C

Explanation:
Lockout/Tagout (LOTO) is the formal procedure used to ensure equipment is isolated fromall sources of hazardous energy, including electrical, mechanical, hydraulic, pneumatic, and stored energy. Voltage verification alone confirms absence of electrical energy but does not prevent re-energization. NETA Level 2 technicians must apply LOTO before performing acceptance, maintenance, or commissioning testing to ensure an electrically safe work condition and compliance with OSHA and NETA safety practices.


NEW QUESTION # 72
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