The electric service division of Fayetteville Public Works Commission (PWC) has been in operation since 1905. Today, Fayetteville PWC is responsible for delivering power to over 80,000 industrial and residential customers across Cumberland County in North Carolina. They are a generation and distribution utility featuring 32 substations at 69kV and 230kV and a peak load of 490MW.
Utilities depend on their wood structures lasting 25-30 years. Therefore, it’s important to specify quality material in manufacturing wood braces. Apitong wood is a dense fiber hardwood, grown in the Asian forest, making it an optimal resource for utility braces.
Topics: Pole Line Hardware
The performance of utility brackets is critical, especially in the event of a major storm or natural disaster where you need maximum support for expensive equipment. So how do you decide on aluminum versus steel brackets to support your equipment? Here are five quick ways that aluminum outperforms steel every time when used to make utility brackets.
Topics: Pole Line Hardware
Each utility has a set of guidelines for weather conditions in their area which takes into consideration ice and wind loading. If distribution connectors are installed properly (per manufacturer instructions) then everything should work as designed.
While heat is generally the enemy of power system transmission lines, strong winter weather brings a new set of challenges for utilities.
In the case of an emergency, natural disaster or major project, utilities can experience the need for a rushed shipment of product to get the power back on. If a utility does not have sufficient replacements in stock, they have to depend on a vendor to supply connectors quickly at a reasonable cost.
Owen Electric is located in Northern Kentucky and serves about 58,000 members. The Boone feeder stretches several miles out from the Boone substation. It has both single and three-phase conductors (12.47/7.2 kV, grounded Wye), with multiple taps branching off. The area is fairly hilly, rural and has lots of trees.
James Bridges, VP of Engineering, explains, “At that time, we believed that trees might be causing the momentary outages, but we did not see any evidence that trees were in the lines.
Protecting your substation from natural disasters is critical. We recommend periodic inspections and dielectric testing of your power apparatus bushings to ensure that they are prepared in the event of a natural disaster. Routine testing allows you to extend the service life of your equipment while lessening the risk of equipment failure, lost revenue and costly repair or replacement. However, hiring a testing service can be costly and time consuming.
Hot line maintenance appears to have begun in the early 1900’s with a few homemade tools. Tools and working methods improved vastly in the following decades. During that era, linemen realized the value of a protective shield to guard them and the equipment they were using from accidentally contacting an energized conductor.
Topics: Lineman Grade Tools
- To install substation arresters, follow the directions, recommended work practices and be safe.
- Inspect the packaging and product, looking for signs of damage.
- Verify kV rating on nameplate, carton/crate label and shipping documents all agree. If they do not, stop and contact Hubbell Power Systems, Inc. prior to installation.
- Locate and read all installation instructions included with the packaging. If there are any questions, now is the time to ask.