B30.3 applies to "construction tower cranes" and "permanently fastened tower cranes" which are powered by way of electrical vehicles or inner combustion engines and that fluctuate their working radius via a luffing increase mechanism, a trolley traversing a horizontal jib, or a mixture of the 2.
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Additional info for ASME B30-3-CONSTRUCTION OF TOWER CRANES
Telescoping: a process whereby the height of a traveling or fixed base crane is increased without removal of the superstructure. This may be accomplished by raising the superstructure (by means of a special telescoping section) and adding tower (mast) sections at the top, by raising an inner tower and the superstructure (by means of special jacking equipment) and then adding sections at the top of an outer tower, or by raising the superstructure and tower (by means of a special base section) and adding sections to the tower from below.
H) Provisions shall be made to prevent simultaneous activation of controls when more than one operator’s station (remote control) is provided (i) Where cranes are powered by hydraulic motors, means shall be provided tÖ automatically stop the power plant on loss of hydraulic pressure. 3 Swaged, compressed, or wedge socket fittings shall be applied as recommended by the rope, crane, or fitting manufacturer. 4 Wire rope clips used in conjunction with wedge sockets shall be ‘0 *e unloaded dead end of the rope only (see Fig.
No part of this document may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. A. COPYRIGHT 2002; American Society of Mechanical Engineers Document provided by IHS Licensee=Qatar Petroleum/5943408103, User=, 10/14/2002 08:50:46 MDT Questions or comments about this message: please call the Document Policy Management Group at 1-800-451-1584. 3b1998 was approved by the American National Standards Institute on October 14, 1998.
ASME B30-3-CONSTRUCTION OF TOWER CRANES by ASME