ehn1 extension – overhead cranes renovation r. rinaldesi – en/he 27/11/2014
TRANSCRIPT
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EHN1 Extension – Overhead Cranes Renovation
R. Rinaldesi – EN/HE27/11/2014
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Overhead cranes renovation
Existing cranesPresentation of technical specification
(scope of supply and main requirements)Planning
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PR 534 – PR 538
Manuafcturer: SEPAYear: 1976Capacity: 40 tonSpan: 46 mLifting height: 10 mPossibility to work in «tandem» mode
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PR 534 – PR 538
Command: cabin sliding along one girderSafe access: only from crane girder
Auxiliary hoist: 5 ton
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Technical specification• Technical specification prepared in 2013
(IT-3927)• Renovation will be ordered within contract
B1422 (frame contract)• Any technical requirements can still be
changed
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Scope of supply (as per IT-3927)• Replacement of hoist trolley (same
capacity)
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Scope of supply (as per IT-3927)• Replacement of long-travel mechanisms
(with the exception of wheels)
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Scope of supply (as per IT-3927)• Replacement of all electrical installations
(cubicles, cables, feeding line)
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Scope of supply (as per IT-3927)• New control cabin and auxiliary hoist (10
ton)
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Main requirements - Crane operating area
existing 7650!
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Main requirements – Access to the crane• Catwalks will be modified according to the
existing standards• Access to the cabin: a platform (provided by
crane manufacturer) will be installed on the end wall at the same height of the crane cabin
cabin
platform
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Main requirements – Control• Crane equipped with PLC; possibility to
set-up «safety zones»• Possibility to operate in tandem mode (only
after renovation of both cranes!)• Load attached to the hook measured and
visible on a display
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Planning• Renovation of each crane: 4 weeks• Replacement of electrical feeding line: 3
weeks• Recommended period: PR 538 (extension side): end of 2015PR 534: beginning of 2016
• Proper area for the intervention shall be identified
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