Underground Fault Locator

CBE provides underground fault locator services across Maine and New Hampshire, helping property owners accurately locate faults in underground electrical cables using specialized testing and diagnostic equipment.
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Professional Electrical Underground Fault Locator Services

Underground cable faults can result from moisture intrusion, physical damage, aging and deterioration, improper installation, loose connections, or faulty electrical components. These problems may lead to power interruptions, open circuits, short circuits, and other electrical issues that can be difficult to locate without specialized testing. Using methods such as high-voltage testing, voltage drop testing, loop impedance measurements, current injection testing, cable tracing, and visual inspection, our technicians identify the location and type of fault so the appropriate repair can be planned with less unnecessary disruption.

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Open Circuit Fault

An open circuit fault is a break in the line, which can cause a loss of power and/or short circuit protection. It is less disruptive than a short circuit fault, but still needs to be addressed by a professional. CBE’s technicians have the expertise to locate these faults quickly and accurately. Our fault location services include high voltage tests, voltage drop tests, loop impedance measurements, current injection testing, cable tracing, and visual inspection.

Short Circuit Fault

There are two main types of short circuit faults: symmetrical faults and unsymmetrical faults. When a symmetrical fault occurs, three phases are short-circuited. You may hear a symmetrical fault referred to as a three-phase fault. An unsymmetrical fault occurs when the magnitude of an electrical current is not equal and is displaced by at least 120 degrees.

Causes of Cable Faults

Cable faults can have a variety of causes. However, many occur due to moisture entering the cable’s insulation. Moisture can corrode the insulation, leading to a short circuit or open circuit fault. Other potential causes of cable faults can include physical damage, aging and deterioration, improper installation, loose connections, and faulty components. Lead sheaths in older cables can also become damaged when lead crystallizes as a result of vibration.

Different Methods of Fault Location

There are two main methods of fault location: the online method and the offline method. The online method takes a sample of the current and voltages in order to identify the fault points. This method is often used with underground cables. The offline method uses a special instrument to measure the line length and resistance. This method is typically used for overhead power lines, as it does not require any current flow through the conductor.

Choose Us for Underground Fault Location

At CBE, we provide reliable and cost-effective underground cable fault location services. Our technicians are highly trained and certified to ensure that all jobs are completed correctly, whether residential or commercial. We have handled electrical installations and electrical services for projects from many major companies.

Contact Us for Underground Fault Locators in Maine

If you are looking for professional underground fault location services in Maine or New Hampshire, CBE is here to help. With our expertise and experience, we can quickly and accurately locate faults, saving you time and money. To learn more or to request a service, contact us today.

Underground Fault Locator

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