Why is certifying electrical testing technicians important?
Certification of competency is particularly important in the electrical testing industry. Inherent in the determination of the equipment's serviceability is the prerequisite that individuals performing the tests be capable of conducting the tests in a safe manner and with complete knowledge of the hazards involved.
Technicians must also evaluate the test data and make an informed judgment on the continued serviceability, deterioration, or non-serviceability of the specific equipment. NETA, a nationally-recognized certification agency, provides recognition of four levels of competency within the electrical testing industry in accordance with ANSI/NETA ETT Standard for Certification of Electrical Testing Technicians. This standard is available for purchase in the NETA Bookstore.
The ANSI/NETA ETT establishes:
- Minimum requirements for qualification and certification of the electrical testing technician (ETT)
- Minimum training and experience requirements for ETTs and provides criteria for documenting qualifications and certification
- Minimum qualifications for an independent and impartial certifying body to certify electrical testing technicians
Four levels of classification are defined in terms of the skills and knowledge required in a given method or methods to perform specified electrical testing and maintenance activities. To proceed to a higher level, an individual shall meet the qualifications set forth and pass the examination for all previous levels.
ETT Trainee Level I
The ETT Trainee Level I classification offers an entry-level gateway into the electrical testing industry. Typical duties include providing assistance to higher level technicians, pre- and post-test sequence assembly and disassembly, and performing simple measurements and/or tests under direct supervision. ETT Level I Trainees are not fully certified technicians, and require the supervision of a Level III ETT Certified Technician or Level IV Senior Certified Technician.
ETT Assistant Level II
The ETT Assistant Level II performs limited testing and service work while generally requiring direct supervision. The individual has sufficient knowledge and experience to be qualified for assuring the safety of him/herself. Safety knowledge includes an understanding of lockout/tagout procedures and requirements, arc-flash and shock hazard analyses, and other facets of hazardous electrical energy control procedures. The ETT Assistant Level II generally requires direct supervision of a Level III ETT Certified Technician or Level IV Senior Certified Technician.
ETT Certified Level III
The ETT Certified Level III is capable of supervising ETT Trainee Level I and ETT Assistant Level II. Typical duties include, but are not limited to, performance and management of routine and moderately complex tasks and projects, record keeping, evaluation of test data, and responsibility for the safety of others. Individual is qualified to provide guidance and is capable of performing electrical power switching.
ETT Senior Certified Level IV
The ETT Senior Certified Level IV supervises large projects and multiple crews and can work independently. Individual performs complex investigations, tests, and evaluations, and prepares written reports as needed.