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Description of BS MA 48:1976 1976This British Standard code of practice refers to the design and operation of ships’ derrick rigs. It gives coefficients for estimating rope tensions, load diagrams, safe working loads, requirements for testing and for care and maintenance. Reference is also made to union purchase rigs. Nomenclature; illustrations of form of rigs with typical head fitting of blocks; estimates of rope tensions; typical load diagrams; union purchase rig; estimating loading on various components; safe working loads of slewing guys for swinging derricks; single sheave block safe working loads; care and maintenance.
About BSIBSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses. |
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