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NETA NETA_2 Exam Syllabus Topics:

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

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NETA Level 2 Certified Assistant Electrical Testing Specialist Sample Questions (Q78-Q83):

NEW QUESTION # 78
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 # 79
Which property of an insulating liquid is defined as thelowest temperature at which sufficient vapor is produced to ignite?

Answer: B

Explanation:
Theflash pointindicates the minimum temperature at which an insulating liquid emits enough vapor to form an ignitable mixture with air. This property is critical for safety assessment, handling, and classification of transformer fluids. NETA Level 2 technicians must understand flash point significance when evaluating insulating liquids used in electrical equipment.


NEW QUESTION # 80
Each switchboard used asservice equipmentmust be provided with amain bonding jumper.

Answer: C

Explanation:
A main bonding jumper is required to connect the grounded conductor (neutral) to the equipment grounding conductor at the service disconnect. This establishes a low-impedance fault return path necessary for overcurrent devices to operate promptly. NETA Level 2 technicians must verify proper bonding during acceptance and maintenance inspections because improper bonding can lead to elevated touch potentials and ineffective fault clearing.


NEW QUESTION # 81
In azone-interlocked low-voltage circuit breakerscheme, if the breaker responsible for clearing a fault fails to operate, which statement is correct?

Answer: A

Explanation:
Zone-selective interlocking (ZSI) improves coordination by allowing downstream devices to trip first while restraining upstream devices. If the downstream breaker fails to clear the fault, restraint signals are removed and thenext upstream breaker tripsto isolate the fault.
NETA Level 2 technicians must understand this fail-safe behavior when commissioning protection systems and validating coordination logic.


NEW QUESTION # 82
In azone-selective interlocking (ZSI)scheme, what condition allows an upstream breaker to tripwithout intentional delay?

Answer: C

Explanation:
In ZSI schemes, downstream breakers send restraint signals upstream when they detect faults. Ifno restraint signal is received, the upstream breaker assumes the downstream device failed and tripswithout intentional delayto clear the fault. NETA Level 2 technicians must understand this fail-safe logic when commissioning protection systems and verifying selective coordination.


NEW QUESTION # 83
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