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�, <br /> TNE BOEING CqIP/UIY � <br /> COORDINATION SHEET <br /> From: Leonard Astemborski No.: 137 <br /> M/S OF-76 Job No.: <br /> 266-3563 Date: Feb 22, 1993 <br /> FAX 342-8167 <br /> To: Tim Tyler <br /> Building Department <br /> City of Everett <br /> SubJect: Location of factory crane disconnects <br /> It is hereby requested that a variance or interpretation ciarification to National <br /> Electric Code Art 610-31(1) be issued. The NEC articie states that the crane ' <br /> runway conductor disconnects be readily accessible and operable irom the <br /> ground or floor level. We consider the floor level for the purpose of the <br /> disconnect locations as the catwalk level in the high bay portion of the building. <br /> The crane operators and mafntenance personnel are at this level and more likely <br /> to respond to the disconnects in the event of a runaway crane. <br /> There are also redundant safety switches located at the ground floor level <br /> controiling other safety features of the crane. <br /> ,� <br />' �i <br /> I , <br />� <br /> I <br />',� <br /> � <br />