Probabilistic method to assess insulating link performance for protection of crane workers

Journal Article · Mon Jan 01 04:00:00 EST 1996 · IEEE Transactions on Power Delivery

DOI:https://doi.org/10.1109/61.484038· OSTI ID:218322

Karady, G G; Shah, M ^[1]; Dumora, D ^[2]

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1. Arizona State Univ., Tempe, AZ (United States)
2. SEDIVER, Saint Yorre (France)

Contact between cranes and transmission lines is the most frequent cause of accidents, which may lead to electrocution of an operator or rigger. This accident can be prevented by inserting an insulating link in the crane`s cable. This paper analyzes currents during accidents and proposes a modified test method for contaminated insulating links. A new and better insulating link is also introduced. Flashover probability of contaminated insulator links is measured. The tests results are evaluated with a new probabilistic method which leads to better assessment of link efficiency. The paper concludes that the risk of link failure cannot be determined without the new flashover probability measurement.

• OSTI ID: 218322
• Report Number(s): CONF-950103--
• Journal Information: IEEE Transactions on Power Delivery, Journal Name: IEEE Transactions on Power Delivery Journal Issue: 1 Vol. 11; ISSN 0885-8977; ISSN ITPDE5
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
CRANES
ELECTRIC UTILITIES
FLASHOVER
OCCUPATIONAL SAFETY
OVERHEAD POWER TRANSMISSION
POWER TRANSMISSION LINES