| Quick Answer: The best electrical testing companies in the US test to ANSI/NETA standards with credentialed technicians, licensed engineering oversight, and documentation built for audits — covering acceptance testing, maintenance testing, and diagnostics. Bowtie Engineering delivers NETA-compliant electrical testing nationwide, including breaker injection testing, infrared thermography, insulation resistance testing, and panel inspections, backed by licensed PEs. Call 866-730-6620 to schedule testing. |
Electrical testing is where facility reliability and worker safety meet, and the NETA name has become shorthand for doing it right. But “NETA” gets used loosely in the market — as an accreditation, a standard, and a marketing word — and buyers deserve clarity before they hire. This article explains what NETA actually certifies, what the best testing companies in the US have in common, and how to evaluate providers for acceptance testing, maintenance testing, and ongoing programs.
What Does “NETA-Certified” Actually Mean?
NETA — the InterNational Electrical Testing Association — publishes the ANSI/NETA standards for acceptance testing (ATS) and maintenance testing (MTS), certifies individual test technicians through a graded program, and accredits testing companies. When evaluating providers, ask specifically: which ANSI/NETA standard will govern the work, what certifications the technicians on your site hold, and who provides engineering oversight. The substance — testing to the standard, with credentialed people and documented results — is what protects your facility, whatever the letterhead says.
What Services Should a Top Testing Company Offer?
- Acceptance testing of new equipment to ANSI/NETA ATS before energization
- Maintenance testing of in-service equipment to ANSI/NETA MTS
- Circuit breaker testing, including primary and secondary injection
- Infrared thermography surveys by certified thermographers
- Insulation resistance testing and trending
- Panel inspections, torque verification, and documented corrective findings
Bowtie Engineering provides this scope through its electrical maintenance and testing services, following NFPA 70B best practices as a NETA-compliant provider, with everything documented for records and audits.
Why Does Engineering Oversight Separate the Best From the Rest?
Test data without engineering judgment is just numbers. The best companies put licensed Professional Engineers behind the program — interpreting trends, connecting test results to protection settings and arc flash data, and turning findings into prioritized action rather than a pass/fail spreadsheet. Bowtie Engineering pairs testing with a systems engineering approach: the same organization that tests your breakers can model your incident energy and coordination, so a slow-clearing breaker discovered in testing is immediately understood as both a reliability problem and a safety problem.
What Does Good Testing Documentation Look Like?
Auditors, insurers, and corporate EHS all eventually ask the same question: prove it. Top providers deliver test reports that identify each piece of equipment, the standard applied, as-found and as-left values, technician identity, and clear disposition — pass, monitor, or correct. Records should be organized for retrieval years later, because trending is where testing earns its keep: an insulation reading is a data point, but five years of readings is a prognosis. Ask any prospective provider for a sample report before hiring; the best produce them proudly. Documentation quality also predicts everything else about a testing company: firms that report carelessly usually test carelessly, while firms whose reports would survive an insurance audit tend to run field work with the same discipline. Facilities should also confirm how records are delivered and stored — searchable and centrally hosted beats a stack of PDFs in an inbox, because the value of a test result compounds only when the next cycle can find it, compare against it, and act on the difference.
How Do National Facilities Choose Among Testing Companies?
Multi-site operators should weight three factors. Consistency: one methodology and one report format across every location. Capacity: the ability to schedule around production windows in multiple regions without subcontracting quality away. And integration: testing that connects to maintenance, arc flash data, and training rather than living in a silo. Bowtie Engineering delivers nationwide programs from its Georgia headquarters with licensed PEs, Certified Energy Managers, and NFPA 70E and 70B credentialed staff — more than 900 programs completed since 2015, BBB-accredited since 2019 — built around exactly that integrated model.
What Questions Should You Ask Before Hiring?
- Which ANSI/NETA standard will govern this work — ATS or MTS?
- What certifications do the technicians assigned to our site hold?
- Who provides engineering oversight, and are they licensed PEs?
- What does your test documentation include, and can we see a sample?
- How do you handle equipment that fails or trends toward failure?
- Can you integrate testing with our arc flash study and maintenance program?
How Does a Testing Program Reduce Failures and Insurance Friction?
The operational case for standards-based testing is direct: most electrical failures develop detectably before they happen, and testing is the detection. Connections loosen and heat for months before they arc. Insulation declines across years before it breaks down. Breaker mechanisms stiffen long before the day they fail to trip. A program that tests to ANSI/NETA standards on a consistent rhythm catches these modes while the fix is a scheduled work order — and the avoided cost of a single prevented switchgear failure typically funds years of the program that caught it.
- Failures intercepted as findings, months before they become outages
- Trending data that turns replacement planning into a forecast
- Documented condition history that satisfies insurer inquiries quickly
- Audit responses measured in exports rather than scrambles
- Fewer emergency service calls, which cost multiples of planned work
- Equipment life extended by exercise, cleaning, and torque cycles
The insurance dimension is growing quietly but steadily: carriers increasingly ask for evidence of an electrical maintenance program at renewal, and NFPA 70B’s elevation to a standard gives them a benchmark to ask against. Facilities holding organized, standards-referenced test records answer in minutes and negotiate from strength. Facilities without them are accumulating a conversation they have not had yet.
Scoping the program is where facilities control cost without cutting substance. The right scope follows criticality and exposure: the main service, the distribution feeding essential loads, and the transformers with long replacement lead times come first, with the remaining inventory phased across subsequent cycles. What should never be phased out is the documentation discipline — one report format, one record system, from the first test onward — because the trending that makes the program predictive depends on data that connects across years, and data connects only when it was captured to connect.
Frequently Asked Questions
What is the difference between NETA acceptance and maintenance testing?
Acceptance testing (ANSI/NETA ATS) verifies new equipment is installed correctly and safe to energize. Maintenance testing (ANSI/NETA MTS) evaluates in-service equipment against condition benchmarks to catch degradation before failure. Growing facilities frequently need both standards running in the same year.
How often should electrical equipment be tested?
Frequency depends on equipment type, criticality, and condition, guided by ANSI/NETA MTS and NFPA 70B. Critical gear is typically tested more often; trending results refine the interval over time. Your provider should propose intervals per equipment class in the program document itself.
Does testing require a shutdown?
Some tests require de-energized equipment; others, like infrared thermography, are performed under load. Good providers sequence both around planned outages to minimize disruption. Ask for the split between under-load and outage work in the proposal so downtime is planned, never discovered.
Why does NFPA 70B matter for testing programs?
NFPA 70B is now a standard for electrical equipment maintenance, and it establishes the program structure testing fits into — making documented, condition-based testing part of a defensible maintenance program.
Does Bowtie Engineering test nationwide?
Yes. Bowtie Engineering provides NETA-compliant electrical testing and maintenance for facilities across the United States, with standardized documentation for multi-site clients.
Need help now? Call Bowtie Engineering at 866-730-6620 or request a free quote online.
Key Takeaways
- NETA publishes the ANSI/NETA ATS and MTS standards — insist on testing governed by them
- The best companies pair credentialed technicians with licensed engineering oversight
- Documentation with as-found/as-left values and trending is where testing earns its value
- Integrated providers connect testing to arc flash data, maintenance, and training
- Multi-site facilities need one methodology and one report format everywhere
- Schedule NETA-compliant testing with Bowtie Engineering — request a free quote