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Crawler Crane: (D) No tools, <br />material, etc., shall be stored on a <br />crawler crane, except in approved <br />containers. <br />When working near power lines, <br />operations shall not be conducted closer <br />than indicated in the tabulation below <br />except as adequate covering or <br />protection of such power lines is <br />provided and a specific set of work <br />instructions are issued by the job <br />superintendent for the particular job. <br />Protection of Signal Devices: (E) <br />When a crane, derrick, hoisting engine or <br />tugger, etc. is used, and operating <br />conditions require the use of a <br />communication system, the system must <br />be free of all outside interferences. This <br />shall be accomplished by using a radio <br />system with a private line, or by using a <br />direct hard wire system between the <br />crane operator and the designated signal <br />man. <br />Elevator Shaft Protection: (F) No <br />Iron Workers <br />employee shall be permitted to work in <br />Truck or Crawler <br />From <br />an elevator shaft while car is in <br />From Power <br />Mo to Lines <br />Power <br />Lines <br />operation. The first floor beneath and <br />300 to 8,700 15 Ft. <br />6 Ft. <br />the first floor above men working shall <br />8,700 to 15,000 15 Ft. <br />8 Ft. <br />be planked safe in all elevator shafts. <br />15,000 to 35,000 20 Ft. <br />10 Ft. <br />35,000 to 50,000 20 Ft. <br />12 Ft. <br />Overhead Cranes: (G) Supervisory <br />50,000 to 100,000 20 Ft. <br />100,000 to 132,000 20 Ft. <br />15 Ft. <br />17 Ft. <br />personnel, when using overhead cranes <br />or per OSHA Standards <br />and power equipment at the job site, are <br />55 <br />56 <br />