Highlights from the World of Linemen News
So far, this series has demonstrated how to calculate the arcing short-circuit current, incident-energy and arc flash boundaries using a series of examples and worksheets. However, once the calculations have been completed, what do you do with all of the results?
The primary use for the results is to comply with the various arc-flash risk-assessment requirements in NFPA 70E, Standard for Electrical Safety in the Workplace. Incident energy calculations are one of… Read More
While the utilities industry may face many strains, there is one area where wealth prevails. The richness of data generated and available for use by energy companies is significant and has the potential to create the next generation of operational efficiency.
This data deluge is set to become particularly key in addressing critical outage management as the severity of global weather events worsens. With the right analysis and interpretation, utilities can forecast, predict and prepare for the worst in an attempt… Read More
North Carolina’s electric cooperatives are making significant outage restoration progress despite challenging conditions.
Cooperatives are reporting 74,000 outages as of 5 p.m. on Monday. About 196,000 outages have been repaired since a peak of 270,000 co-op outages on Sunday. Close to 270 additional workers are in the field with local line-workers… Read More
On August 1, 2016 eight co-op volunteers left Oklahoma City and headed to Riberalta, Bolivia –their final destination. Volunteers worked for the next 15 days alongside Missouri co-op linemen and local linemen from Cooperativa Electrica Riberalta. The project was comprised of 280 poles in an area spanning 10 miles and brought electric service to the villages of Dos de Junio and El Torito in the outskirts of the city of Riberalta. As a result, 361 families now enjoy electricity for the first time.
“Rural electric cooperatives are known for bringing power to areas that would not otherwise enjoy electricity,” Chris Meyers, OAEC general manager, said. “It’s rewarding to know we made a difference in the lives of families who are striving for a better quality of life.”… Read More
Always take the time to understand the job at hand, the equipment being used, and the procedures required to perform the task. Every CHANCE® Capstan comes with an instruction booklet and a label on the hoist.
Read both of these documents carefully and be sure you understand all the warnings before using the product. Unlike a block and tackle, when operating a Capstan, the operator can’t “feel” the weight. This makes it nearly effortless on the operator. Because of this, the operator must know what the weight of the object or the force to pull the cable will be before starting the job.
Remember: These hoists are for lifting equipment or pulling cable, not for lifting personnel… Read More
The financial severity of transformer failure is well known to the industry. An extensive service costs more than €100,000, while a replacement transformer can cost up to €4 million. Associated loss of production can further increase these figures.
As a result, online DGA condition monitoring is becoming standard practice for aging transformer fleets. It enables proactive diagnosis and mitigation of developing faults before they lead to costly downtime. However… Read More