HAZARD Alert – S&C overhead pole-top style SMD-20 fuse mountings
December 13, 2011 – S&C Electric says that polymer insulator furnished on certain S&C overhead pole-top style SMD- 20 fuse mountings may fracture when the fuse is opened with an S&C Loadbuster loadbreak tool. Should this occur, the unsupported upper portion of the insulator could—depending on the utility’s construction practices—make contact with an energized conductor, resulting in electrical arcing.
Only single-insulator mountings furnished with a polymer (not a porcelain) insulator are potentially subject to this issue. They include the following catalogue numbers:
S&C says all mountings manufactured in 2011 are potentially susceptible to this issue. The company says it is continuing its investigation to determine whether a larger manufacturing date range is affected. Once a date range has been identified, a second letter will be issued with its findings.
For further information, contact David Moore, customer service manager, at firstname.lastname@example.org or (416) 249-9171 ext. 3314.