ASME B30.20:2010 pdf free download

ASME B30.20:2010 pdf free download.Below-the-Hook Lifting Devices.
niagnet, lifting, close proximity operated: a lifting magnet used in such a fashion that the operator manually positions the lifting magnet on the load, and manually guides the lifting magnet and load during a lift.
magnet, lifting, general application: lifting magnets that are intended by the manufacturer to be used on a number of different geometrical shapes and do not fall under the category of remotely operated lifting magnets.
magnet, lifting, remotely operated: a lifting magnet that does not require the operator or other personnel to be in close proximity to the lifting magnet or its load while the lifting magnet is in use.
magnet, lifting, specified application: lifting magnets that are designed for lifting specified geometrical configurations and weights of designated parts, identified by part number or other controlled definition and used in a control led manner.
service, heavy: service that involves operation within the rated load limit that exceeds the limits of normal service.
service, normal: service that involves operation with various weights within the rated load limit, averaging less than 65% of rated load (capacity) with the magnet operating at, or below, the rated duty cycle over one shift (8 hr).
service, sezvre service that involves normal or heavy service with abnormal operating conditions.
service, special or infrequent: service that involves operation other than normal, heavy, or severe.
test, application breakaway force: a test that is carried out in accordance with instructions from the manufacturer of the lifting magnet in order to establish the application breakaway force.
test, breakaway force: a test that is carried out per para. 20-3.3.8.2 in order to establish the rated breakaway force.
SECTION 20-0.6: DEFINITIONS FOR CHAPTER 20-4 (Ii
absiormal operating co,,dif ion: environmental conditions that are unfavorable, harmful, or detrimental to or for the operation of remotely operated lifting magnets, such as excessively high or low ambient temperatures, exposure to adverse weather, corrosive fumes, dust-laden or moisture-laden atmospheres, and hazardous locations.
cold current: that current drawn by the lifting magnet when its coil is at 68F (2OC) and at rated voltage.