High Voltage & Testing Jobs
Energize, test, and commission the grid and critical power infrastructure.
Key High Voltage & Testing Capabilities
The skills and strengths employers look for in this field.
Acceptance & Maintenance Testing
Performing acceptance (NETA ATS) and maintenance (NETA MTS) testing on transformers, switchgear, breakers, cables, and protective devices.
Protective Relay Testing & Calibration
Configuring, testing, and calibrating electromechanical, solid-state, and microprocessor relays using test sets such as Omicron and Doble.
HV Electrical Safety
Working safely around energized equipment with OSHA compliance, NFPA 70E arc-flash procedures, lockout/tagout, and proper PPE.
Commissioning & Energization
Pre-commissioning checks, functional testing, point-to-point verification, and safe energization of new or upgraded power systems.
Substation & Switchgear Work
Installing, terminating, and troubleshooting medium- and high-voltage substation equipment, buswork, and control wiring.
Diagnostic Instrumentation
Using insulation resistance, power factor, TTR, micro-ohm, SF6, and partial discharge test instruments to assess equipment condition.
Documentation & Reporting
Producing accurate test reports, as-built records, and commissioning documentation to client and regulatory standards.
Reading Electrical Schematics
Interpreting one-line diagrams, relay logic, wiring schematics, and protection and control drawings.
High Voltage & Testing Market Overview
High voltage and electrical testing is one of the most specialized and consistently in-demand corners of the US electrical sector. Grid modernization, data center buildout, substation construction, and an aging utility workforce are driving sustained hiring for HV electricians, NETA test technicians, protective relay specialists, and commissioning personnel.
Pay in this field runs well above general electrical work because the roles demand specialized safety training, acceptance- and maintenance-testing expertise, and field mobility. Protective relay technicians, for example, command an average of roughly $93,000 per year, with most earning between about $82,500 and $107,000 depending on experience and location. NETA-certified testing technicians typically earn in the $48,000–$75,000 range, rising with ETT level and lead responsibility.
Employers span electrical testing firms (NETA Accredited Companies), utilities, EPC contractors, data center operators, industrial facilities, and renewable developers. Many positions involve significant travel and field work, and overtime and per-diem can add substantially to base pay.
Credentialing is central to this category: NETA/NICET certification, OSHA and NFPA 70E arc-flash safety training, and a journeyman or master electrician license are frequently required. Demand remains high and is expected to stay strong as the grid is expanded and upgraded.
High Voltage & Testing Salary Guide
Indicative ranges — actual pay varies by location, experience and employer.
Ranges reflect national US averages as of 2024–2026 from aggregated job-market data (ZipRecruiter, Glassdoor, Indeed). Field roles often add overtime, per-diem, and travel pay; high-cost metros and union scales pay above these figures.
See the full High Voltage & Testing salary breakdown by level and location →
High Voltage & Testing Job Roles
Common job titles and roles for High Voltage & Testing professionals.
Professional Bodies & Qualifications
NETA ETT Certification
InterNational Electrical Testing Association Electrical Testing Technician certification (Levels 1–4), the primary industry credential for field testing technicians.
NICET Electrical Power Testing
National Institute for Certification in Engineering Technologies certification recognizing competency in electrical power testing.
Journeyman / Master Electrician License
State-issued electrical license required for many HV and MV electrician roles; requirements vary by state.
NFPA 70E Arc-Flash Training
Electrical safety training for working on or near energized equipment, widely required for field HV work.
OSHA 10 / OSHA 30
Occupational Safety and Health Administration construction and general industry safety certification.
Professional Engineer License
State PE license for engineers who stamp protection studies, designs, and commissioning documentation.
NABCEP (for renewables crossover)
North American Board of Certified Energy Practitioners credential relevant to HV work in solar and storage projects.
Career Path & Progression
Apprentice / Trainee Technician
Entry-level field support under supervision; building toward NETA ETT Level 1–2 and foundational HV safety training.
Test / HV Technician
Independently performs routine testing and HV electrical work; typically NETA ETT Level 2–3 with journeyman licensure.
Senior / Lead Technician
Leads field crews on complex projects, mentors junior staff, and signs off test reports; often NETA ETT Level 3–4.
Commissioning / Protection Engineer
Owns commissioning scopes, relay settings, and protection studies; coordinates with utilities, EPCs, and clients.
Project / Field Service Manager
Manages multiple crews, budgets, client relationships, and overall delivery of testing and commissioning programs.
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