Laserfiche WebLink
� � I Boeing Commercial Alrplane Group_ <br /> P.O.Boc 3707 <br /> I Seal�le,WA 90124•2207 <br /> March 15, 1994 <br /> T-6010-94-066 • <br /> � <br /> Tim Tyler <br /> Cit�r oi Everett <br /> BOE/A�6 Department oi Public Works <br /> 3200 Cedar Street <br /> Everett, WA 98201 <br /> Dear Mr. Tyler <br /> Subject: Crane maintenance plaHorm conductor variance <br /> Reference: Inspection report dated January 19, 1994, Permit E42866 i <br /> The 1990 National Electric Code Article 610-21(a) states that contact conductors <br /> shall be guarded and located in a manner that people cannot inadvertentiy touch <br /> energized current carrying parts. The overhead crane mafntenance platforms <br /> called �ueen Mary are used to perform maintenance on the bridge. Frequent <br /> repairs are needed to adJust the power and controi conductors to ellow safe <br /> transfer oi carrier shoes along the conductor bar. Adding guards to the contact <br /> conductors will make these repairs very di�cult. <br /> It is hereby requested that a variance be granted to allow the conductors to be <br /> exposed for ease in the required meintenance. When this variance is approved <br /> we wfll install warning signs at the entrance to the Queen to alert personnel of <br /> the potential overhead electrical hazard. <br /> Sfncerely, <br /> �, ,�;,z��.�,,(� <br /> D. T. Walsh <br /> Permitting Manager <br /> T-6010, dA/S OH-12 <br /> (206) 342-7339 <br /> �o � C� � � d � D <br /> AR 1 6 19£4 <br /> M <br /> ... <br /> ............................................ <br /> ...."�ITy OF EVERE <br /> Bidg. Permlt Counter <br /> I WA427 <br />