How we work to keep you safe.

Electrical Infrared Scans

An Infrared survey is a proven form of non-destructive inspection and serves as an important diagnostic and preventive maintenance tool.

CTI performs these surveys with the use of a portable, high resolution, infrared imaging system. This equipment detects emitted Infrared radiation and converts it to a video monitor screen. The shades of gray viewed on the monitor screen, from black to white, indicate the temperature differentials present. The infrared radiation emitted from an object is always proportional to the temperature of that object.

The Infrared video is recorded for an in-office review and to capture pictures of the unusual temperature differentials. A color photograph is captured for simplified visual identification and a black and white photograph for a visual of the hot spot. These photographs are stored on disc and are an excellent record for future comparisons. An electrical distribution system provides numerous applications for an infrared survey: loose or dirty connections, poor contact, unbalanced loads, faulty fuse clips, and overloaded circuits are a few. Increased resistance to the flow of the electrical current characterizes poor connections and causes excessive heat. The heat is detected and diagnosed by the infrared thermographer. There is no physical contact with the system, which allows the survey to be performed while the system is in operation. At the customer’s location, a representative of the customer directs the thermographer.

Note: It is in the customer’s best interest to fully load all systems before being surveyed.

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Electrical Grounding Testing

Grounding Testing services are offered to determine if a facility has the proper electrical grounding. All types of facilities and various kinds of equipment can be tested. From the results of the testing, it can be determined if the facility or the equipment is properly grounded.

Criteria of minimum grounding potentials:

  • All electronic and communication equipment should have a grounding potential of 1ohm or less.
  • All electrical enclosures, raceways, j-boxes, conduit, etc. should have a grounding potential of 3 ohms or less.
  • All non-electrical equipment (handrails, flagpoles, fences, etc.) should have a grounding potential of 45 ohms or less.

Note: These numeric values for recommending minimum grounding potentials were determined using the knowledge of the I.E.E.E., N.E.C. and N.F.P.A. standards combined with personal field experience in the area of ground testing.

In addition, we offer the inspection and the testing of Lightning Rod Systems. We will measure the effectiveness of the system in order to prevent damage caused by lightning.

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Bearing Analysis

Vibration analysis is a method that collects and interprets the vibrations created by rotating equipment. This is a proven form of an “as is” inspection, which is conducted during production. Therefore, Vibration Analysis serves as an important diagnostic and preventive maintenance tool.

CTI performs vibration surveys using an IRD FASTRACK to collect the specialized data. The collection process involves placing a portable sensor on the equipment in vertical, horizontal and axial orientations. After the data is collected, the information is downloaded to a personal based computer system, which interprets and organizes the information into a readable format.

Two primary measurements are used in determining the running condition of the machinery. The first measurement is inches per second (In/s), which defines the amount of movement detected within the equipment. This measurement is used primarily to pinpoint conditions such as: machine imbalancement, misalignment and mechanical looseness. The second measurement is spike energy (G/se). This measurement usually filters general noise and records high impact noise that can be generated from inner race damage, outer race damage or housing damage. Because of this unit of measurement, it is possible to accurately predict bearing wear or damage and provide a four-stage time frame to the customer. The four-stage time frame will maximize the time before a repair is necessary.

At the customer’s location, the vibration analyst is initially directed by the customer to determine the equipment that will be included on the vibration route. After a route is established, the analyst takes the route readings once a month for the first three months and then every three months thereafter or as often as the customer prefers. The database that will be established of the equipment can be used to track the condition of machines and greatly reduce the risk of catastrophic failure.

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Contracts with CTI

CTI offers the opportunity to sign a contract for any services they offer. In return for a contract, CTI will provide electrical troubleshooting & testing when requested.

For more information on the services provided by CTI or the contractual requirements, please call 615-584-7469.