ASME B30.13:2022 pdf download

ASME B30.13:2022 pdf download Storage/Retrieval (S/R) Machines and Associated Equipment Safety Standard for Cableways, Cranes, Derricks, Hoists, Hooks, Jacks, and Slings
b] Each guard shall be capable of supporting withoutpermanent deformation the weight of a 200-lb(90-kg)person unless the guard is located where it is not reason-able to expect a person to step during operation or main-tenance.
sECTION 13-1.8:BRAKES
13-1.8.1 Brakes for Electric Hoists
(a) Each independent-hoisting unit of an S/R machineshall be equipped with at least one holding brake, applieddirectly to the motor shaft or some part of the gear train.(b) Each independent-hoisting unit of an S/R machine,except worm-geared hoists, the angle of whose worm issuch as to prevent the load from accelerating in thelowering direction, shall,in addition to a holdingbrake, be equipped with control-braking means tocontrol lowering speeds.
13-1.8.2 Holding Brakes
(a) Holding brakes for hoist motors shall have a ratingnot less than the following percentage of the full loadhoisting torque at the point where the brake is applied:(1) 125% when used with a control-braking meansother than mechanical
(2) 100% when used with a mechanical control-braking means
(3) 100% each if two holding brakes are provided(bj Holding brakes on hoists shall have thermal capac-ity for the frequency of operation required by the service.(c) Holding brakes shall be applied automatically whenpower to the brake is removed.
(d) Holding brakes shall be provided with means tocompensate for lining wear.
(e) The wearing surface of all brake wheels, drums, ordisks shall be free of defects that interfere with the opera-tion.
13-1.8.3 Control-Braking Means
(a) An electrical control-braking means (such as regen-erative, dynamic, countertorque, or eddy-currentbraking), a mechanical, or a hydraulic control-brakingmeans shall be capable of maintaining controlled travelor lowering speeds.
(b) The control-braking means shall have thermal ca-pacity for the frequency of operation required by theservice.
13-1.8.4 Horizontal Travel and Shuttle Brakes(a] This paragraph does not apply to horizontal-shuttledrives that do not require a brake to stop motion or holdposition.
(b) Brakes shall be provided for horizontal travel andshall be applied automatically when power to the brake isremoved, but shall not prohibit the use of a drift point inthe control circuit.
(c】 Brakes shall be provided with means to compensatefor lining wear.
(d) The wearing surfaces of all brake wheels, drums, ordisks shall be free of defects that interfere with the opera-tion.
(e) Holding-brake torque shall be sufficient to decele-rate thes/R machine from rated speed by at least 1 ft/sec2(0.3 m/s3) and shall be capable of decelerating the S/Rmachine to a complete stop from rated speed.
Brakes shall have thermal capacity for the frequencyof operation required by the service.
SECTION 13-1.9: ELECTRICAL EQUIPMENT13-1.9.1 General
(a) The provisions of this Section shall only apply toS/R machines, aisle-transfer cars, and any load-handlingequipment that is part of or attached to s/R machines oraisle-transfer cars.
(b) lf resistor enclosures are provided, they shall beinstalled to prevent the accumulation of combustiblematter.
(c) Wiring Outside of Control Enclosures on an s/RMachine or Aisle-Transfer Car
(1) Conductors external to control cabinets shall beenclosed in raceways or be protected cable,such as but notlimited to types ALS, cs, or Ml cable, subject to the excep-tion that contact conductors,that are fully insulatedexcept as necessary to provide access for collectorshoes, may be used to service moving portions of suchmachines.
(2) Rubber, thermoplastic, or synthetic polymerinsulation may be used in accordance with ANSI/NFPA70,Table 310-2(a).
(3) The allowable ampacities of conductors shall beas shown in ANSI/NFPA 70, Table 610-14(a). For theampacities of conductors between controllers and resis-tors,see ANSI/NFPA70,Section 430-23.The ampacities ofconductors within flexible cords or cables shall be inaccordance with ANSI/NFPA 70,Article 400.
(4) Individual conductors run in conduits and race-ways or within jacketed multiple conductor wire shall notbe smaller than No.16.
(5] Flexible cords or cables that are part of specialsensors or appliances and that conform to ANSI/NFPA 70,Articles 400 and 725 may be used in short runs outsideconduits or raceways.
(d) Wiring within Control Enclosures
(1) When an S/R machine carriage is operator-ridden, the wiring shall be flame-retardant andmoisture-resistant, and panel wiring to the main