On-site Electrical Testing AND MAINTENANCE Services

Scheduled or Unplanned Outages: Maintenance, Testing, and Repair of Your Electrical Equipment

Scheduled maintenance and testing of your electrical equipment are necessary to avoid downtime and to keep your electrical system functioning safely and reliably. If you have an unscheduled outage due to equipment failure, regardless of cause, it is critical to get your system back online as quickly as possible.

For either a planned or an unplanned outage, you can call on CBS Field Services. Our on-site services include visual inspections, mechanical verification checks, electrical testing, and repair of low-, medium-, and high-voltage electrical apparatus. CBS Field Services supports utility substations, power plants, renewable energy generation, data centers, and industrial and commercial facilities large and small. Our technicians have experience with equipment ranging from 345 kV to 480 V.

If we identify malfunctioning equipment, in most instances we can perform an on-site repair. However, some situations may require shop repair, and as a Group CBS Company, we have access to the nationwide network of Circuit Breaker Sales service shops.

Emergency? We are available 24/7 to respond to any emergency situation you might have. Call 888-395-2021.

As a NETA Accredited Company, we use the ANSI/NETA MTS-2019 Standard for Maintenance Testing Specifications for Electrical Power Equipment & Systems. This standard incorporates comprehensive field tests and inspections to assess whether electrical power distribution equipment and systems are reliable, suitable for continued service, or in need of maintenance.

Not sure which equipment needs maintenance or how often? We can help develop a maintenance program for your facility by taking your critical equipment into consideration.

We recommend the following for maintenance and testing:

  • Switchgear and switchboard assemblies
  • Transformers: dry type and liquid filled
  • Cables: low- and medium-voltage (VLF with tan delta and high voltage)
  • Circuit breakers: low-, medium-, and high-voltage
  • Protective relays: electromechanical, solid state, and microprocessor
  • Instrument transformers
  • Metering devices
  • Regulating apparatus
  • Grounding systems
  • Rotating machinery
  • Motor control centers
  • Battery systems
  • Emergency systems
  • Thermographic surveys

Electrical testing and maintenance of circuit breakers and other electrical power equipment
NETA/ANSI standard for Maintenance Testing Specifications for Electrical Power Equipment & Systems
On-site testing of circuit breakers

For more information, to discuss your requirements, or to request an estimate or quotation, contact CBS Field Services.

Arc Flash Study & Other Power Engineering Services

Our professional engineers will give you confidence in the safety and reliability of your facility with an arc flash study and other power engineering services.

Electrical Acceptance Testing & Commissioning

Lifelong reliable power system service starts with a comprehensive critical acceptance testing plan. We ensure accurate, unbiased testing and reporting.

Electrical Testing & Preventive Maintenance

Schedule electrical testing & maintenance services from CBS Field Services – such as power monitoring, circuit breaker timing, and others – to ensure your power system is reliable and safe.

Thermographic Survey – Infrared Scan Services

Our infrared survey produces thermal images of your electrical power equipment to detect common potential points of failure that can cause power outages.


Keep up with the latest information from CBS Field Services and developments from across the electrical industry.


The Group CBS family of electrical field service, service shop, and power products companies offer everything you need for manufacturing, testing, parts, repairs, and engineering services.

Manufacturing Services

Group CBS affiliates offer in-house manufacturing of obsolete replacement components for all types of electrical power circuit breakers and switchgear.

Replacement Parts

The service shops of Circuit Breaker Sales, a Group CBS affiliate, have tens-of-thousands of renewal and replacement parts for your power distribution equipment, including vintage relays and controllers.

Power Products

CBS Power Products is the electrical industry’s leader for remote racking and switching solutions and for vacuum interrupter replacements and test sets.

Repair, Life Extension

Extend the life of your obsolete switchgear, motor controls, and circuit breakers with our retrofit, retrofill, and upgrade life-extension programs.

CBS Field Services is a NETA Accredited Company

NETA Accreditation Ensures High-Quality

As a NETA Accredited Company since 2011, CBS Field Services has numerous NETA certified technicians on staff.  We underwent a rigorous application process to ensure that we provide electrical testing and maintenance services to the highest standards of safety and reliability,


Do you need help with electrical testing, maintenance, an arc flash study or other power engineering service? Give us a call or send us a note.

After Hours or Emergency Support Available 24/7  888.395.2021

After Hours or Emergency Support Available 24/7 888.395.2021