ASME B20.1 pdf free download

ASME B20.1 pdf free download Safety Standard for Conveyors and Related Equipment
1 scOPE
This Standard applies to the design, construction, instal-lation,maintenance, inspection, and operation ofconveyors and conveying systems in relation tohazards.The conveyors may be of the bulk material,package, or unit-handling types, where the installationis designed for permanent, temporary, or portable opera-tion.
This Standard shall apply, with the exceptions notedbelow, to all conveyor installations.
This Standard specifically excludes any conveyordesigned,installed, or used primarily for the movementof people.This Standard does, however,apply to certainconveying devices that incorporate within theirsupporting structure workstations or operator’s stationsspecifically designed for authorized operating personnel.This Standard does not apply to conveyors for which
specific standards are already in effect, or to equipmentsuch as industrial trucks, tractors, trailers,automatic
guided vehicles,tiering machines (except pallet loadtierers), cranes, hoists, power shovels, power scoops,bucket drag lines, trenchers, platform elevators designedto carry passengers or an operator,manlifts,moving
walks, moving stairways (escalators).highway or railroadvehicles, cableways,tramways, dumbwaiters, material
lifts, industrial scissors lifts. pneumatic conveyors,robots, or integral machine transfer devices. Some ofthe foregoing have specific standards.
The provisions of this Standard shall apply to equip-ment installed 1 yr after the date of issuance.
2 REFERENCES
The following list of codes and standards have beencited as references in this Standard. Reference to themdoes not constitute inclusion of the complete text ofsuch codes or standards as a part of this Standard.
This Safety Standard for conveyors is supplementary toany law or code covering fire or health regulations.
ANSIZ244.1-1982,Personnel Protection — Lockout/Tagout of Energy Sources —Minimum Safety Require-ments
Publisher: American National Standards Institute (ANSI),25 West 43rd Street,New York, NY 10036
(www.ansi.org)
ASMEA17.1/CSA B44, Safety Code for Elevators and Esca-lators
Publisher: The American Society of Mechanical Engineers(ASME). Two Park Avenue, New York, NY 10016-5990(www.asme.org)
ASSE Z590.3，Guidelines for Addressing OccupationalHazards and Risks in Design and Redesign ProcessesPublisher: American Society of Sanitary Engineering(ASSE International),18927 Hickory Creek Drive,Suite 220,Mokena, IL60448 (www.asse-plumbing.org)Application Guidelines for Vertical ReciprocatingConveyors
Publisher: Conveyor and Sortation Systems (css), a divi-sion of Material Handling lndustry (MHI),8720 Red OakBoulevard,Charlotte, NC 28217-3992
(www.mhi.org/conv)
CEMA 102, Conveyor Terms and DefinitionsCEMA Technical Report 2015-01
Publisher: Conveyor Equipment Manufacturers Associa-tion (CEMA),5672 Strand Ct.,Suite 2，Naples，FL34110(www.cemanet.org)
MIL-STD-882, System Safety
Publisher: Department of Defense,Defense LogisticsAgency (DLA),DLA Document Services，Building 4/D,700 Robbins Avenue,Philadelphia,PA 19111-5094(http: / / dla.mil)
NEMA Z535.4，Product Safety Signs and Labels
Publisher: National Electrical Manufacturers Association(NEMA),1300 North 17th Street, Suite 900, Arlington,vA 22209 (www.nema.org)
NFPA 70,National Electrical Code
NFPA 79，Electrical Standard for lndustrial MachineryPublisher: National Fire Protection Association (NFPA),1 Batterymarch Park，Quincy,MA 02169-7471(www.nfpa.org)
OSHA Standard 29 CFR 1910.147, The Control of Hazard-ous Energy (Lockout/Tagout)
Publisher: Occupational Safety & Health Administration(OSHA),U.s. Department of Labor,200 ConstitutionAvenue, Washington, DC20210 (www.osha.gov)
3 INTENT
The intent of this Standard is to provide for safe opera-tion and maintenance of conveying equipment.
4 DEFINITIONs1
accessible: applies to hazardous objects not guarded orisolated and likely to be contacted inadvertently.
actuator: a device that initiates the action of controls orcontrollers and is manually operated.The actuator may bea push button, toggle switch, foot pedal, hand lever, hand-set timer, or any other device that performs the describedfunction.
antirunaway: a safety device that stops a declining.inclined, or vertical conveyor and thus prevents itfrom moving away in the event of a mechanical or elec-trical failure.
apron pan: one of a series of overlapping or interlockingplates or shapes that,together with others, form theconveyor bed.
automaticaly controlled: describes the operation by theaction of a mechanism that is initiated by some impersonalinfluence, such as a conveyor that is started by a low-levelbin indicator.
backstop: a mechanical device to prevent reversal of aloaded conveyor under action of gravity when forwardtravel is interrupted.
bed:
(a) that part of a conveyor upon which the load orcarrying medium rests or slides while being conveyed(b] in bulk material conveyors, the mass of materialbeing conveyed
belt idler: a roller or series of rollers that supports the beltof a belt conveyor.
belt tripper: a device incorporating a system of pulleys thatcauses the conveyor belt to discharge material at one ormore points along the length of the conveyor.
boom: a cantilevered member or structure that may behinged, fixed, or pivoted.
brake: a friction device for slowing down conveyor compo-nents, bringing conveyor equipment to a controlled stop,holding traveling or traversing equipment in a selectedlocation, preventing reverse travel, and /or controllingoverspeed due to the action of gravity.
burker: a large bin or compartment for storage of bulkmaterials.