ElecComm Blog


Systems for Detecting Faults In Underground Cable Systems Must be Powerful and Cost Effective

Joseph Coupal - Friday, February 16, 2018
ElecComm underground high voltage cable installation in Boston, MA

As underground cable systems become more widespread, a less invasive fault detection process is imperative. Once underground high voltage cable systems are in place, excavation of the entire cable system to locate faults and subsequent repair is not economically sound. Moreover, digging the whole length of the fault section increases the risk of accidents and damage to cables and surrounding properties. Time domain reflectometry provides the most accurate location of defects in underground cable systems.

Using pulses of radio frequency transmitted through the affected cable, a time domain reflectometer, also known as TDR, has an integrated timer that measures the frequency travel along the wire and records the time until the frequency is reflected back. Using a set of standards values for materials at various lengths, a disparity in the cable can be accurately pinpointed based on time. Any disparity in an underground high voltage cable installation in Wilmington, MA, means a change in impedance. Wire impedance tells the wire’s ability to transit pulses, thus a change in impedance translates to a change in recorded time.

ElecComm service personnel are equipped with the necessary skills in the operation and data analysis of TDRs for a cost-effective maintenance and repair of underground cabling system. ElecComm fully grasps the critical nature of underground cables in electrical systems and is committed in ensuring the continuous electrical power that is essential in business operations and productivity. For more about maintenance and repair of underground power cable systems, contact ElecComm.

Underground High Voltage Cable Protection: A Point Of Paramount Importance

Joseph Coupal - Thursday, January 11, 2018
ElecComm Underground high voltage cable installation in Boston, MA

Along with the increase in the use of underground high voltage cable systems, is a growing concern for the cable’s protection as part of an expansive power system network. Underground cables are mostly safe from weather but various threats are still present even underground. Since these cables are not readily visible compared to overhead lines, the risk of damage from unwarranted excavation, electrical faults, and even accidents can happen. Damaged underground power cables can cause power outages to the same degree as overhead power line failures.

Underground high voltage cable installation in Boston, MA follows the power industry standards in terms of underground cable protection. Underground distribution switchgear and fuses are housed in grounded and air-insulated enclosures that keep them from vegetation, wildlife and humans. Underground cables are protected from water ingress, corrosion, and high levels of mechanical stress. Safety signs are placed above the ground where power cables are routed to warn impending construction and excavation nearby. In the event that the signs are damaged or covered, warning tape and protection mesh are also buried in the soil just above the lines to warn excavators.

ElecComm services guarantee complete protection of all underground high voltage cable systems. The underground cable installation teams are also adept in detection and repair of underground power line faults. ElecComm fully understands the important role of underground high voltage cable system protection for sustaining a stable and continuous supply of electric power. For more about underground high voltage cable installations, contact ElecComm.

Underground High Voltage Cable Installations Mitigate Economic Losses from Massive Blackouts in Winter

Joseph Coupal - Thursday, December 07, 2017
ElecComm Underground high voltage cable installations in Plymouth, MA

Replacing overhead power and telecommunication lines with underground cables is gaining ground across public utility companies in the Northeast. Extreme winter weather patterns that cause massive blackouts have prompted companies and federal state governments to consider a shift to underground high voltage cable systems.

Widespread blackouts due to snowstorms are a major public safety concern. Classes and work are suspended during outages resulting in decreased economic activity. When these power outages are prolonged over a period of days or weeks, overhead power line maintenance and repair are not cost effective. Businesses that run 24-hour operations as well as large industries with high production volume will be compelled to procure expensive generators and fuel or shutdown. In fact, as means of reducing maintenance costs, most generator systems in large offices and industrial complexes are actually complemented by an underground cabling system in addition to the overhead power lines installed by public utility companies.

From a corporate perspective, when economic losses outweigh the cost of maintaining overhead power lines, underground high voltage cable installation in Boston, MA is highly recommended. Though the majority of power lines across the country remain overhead, careful study per location should be made on a case-to-case basis.

Cost estimation and feasibility studies for community-wide or partial underground high voltage cable installation on many areas are on-going. It is best to consult an electrical system construction company in your own area. For more on underground high voltage cables, contact Eleccom.

Underground High Voltage Cable Installation is More Fitting in Some Instances- Boston, MA

Joseph Coupal - Monday, April 11, 2016

Underground power lines have unique benefits that overhead power lines do not. This is why there are now many transmission projects involving underground high voltage cable installation in Boston, MA. In fact, even existing overhead power lines are being replaced in certain areas where underground high voltage cables (UHVCs) are more fitting.

Underground power lines are more expensive to install than their overhead counterparts but the installation itself pays off in many different ways. These benefits often make the underground alternatives more practical. Guidelines are first established for the appropriate use of the UHVCs in order to balance the needs of all concerned. Undergrounding power lines are best for transmission projects when the areas under consideration have the following criteria:

  • Densely populated urban locations
  • Land areas where planning consent is difficult to obtain within an acceptable timeframe
  • Locations that must be preserved for future rural development or urban expansion
  • Places with outstanding natural heritage or vulnerable ecosystems
  • Sites that have historical or cultural values
  • Waterways and other locations with natural obstacles

Underground high voltage cable installation is a more fitting alternative in these spots because it creates less visual and environmental impact which helps preserve the spots themselves.

While underground high voltage cable networks offer amazing advantages, careful analysis is required before installation. Undergrounding high voltage cables are an appropriate solution for sections of a line where acceptable overhead route cannot be found.

To find out more about underground high voltage cable installation, contact ElecComm.

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