标准规范下载简介

ASME B30.4-2020 门座起重机和基座式起重机.pdf

members or locations it is advisable to periodically observe or testfor the purposeofdetectingtheonset of metal fatigue, the loosening of prestressed bolts, or wear affecting the ability of the crane to support rated loads.

Hoist drums shall be in accordance with ASMEE

Hoist drums shall be in accordance with ASME B30.30

JC／T 2126.3-2012标准下载1GeneralRequirements

fromtheeffectsof windperASCESEI7whenthe crane is out of service

(a) Crane trucks shall be fitted with sweeps extending to the top of the rail and placed in front of the leading wheels in either direction. (b) Truck wheels shall be guarded. (c) Means shall be provided to limit the drop of truck frames in case of wheel or axle breakage to a distance that will not cause the crane to overturn

(a) Crane trucks shall be fitted with sweeps extending to the top of the rail and placed in front of the leading wheels in either direction. (b) Truck wheels shall be guarded. (c) Means shall be provided to limit the drop of truck frames in case of wheel or axle breakage to a distance that will not cause the crane to overturn

End terminations shall be in accordance with ASME B30.30

A metal receptacle should be provided for the storage ol small hand tools and lubricating equipment. It should be secured in the cab or on the machinery platform

Aportable fire extinguisher, with basicminimur extinguisher rating of 1o BC, shall be installed in th cab or at the machinery housing.

control located within reach of the operator

Lubrication points should be accessible without the ecessity of removing guards or other parts with tools inlessequippedforcentralizedlubrication

Engine exhaust gases shall be piped and discharged wayfromtheoperator.Exhaust pipes shall be guarded or insulated to prevent contact by personnel when performing normal duties.

18.6 Wind Velocity Devic

Fuel tank fller pipes shall be located or protected so as not to allow spillage or overflow to run onto the engine, exhaust, or electrical equipment of the machine being fueled

1.18.9Hydraulicand PneumaticLineProtection

Exposed lines subject to damage shall be protected insofar as it is practical.

1Preventive Maintenand

Rope inspection, replacement, and maintenance sh he in accordance with ASME B30.30.

hall include, but not belimited to,requirements in (c)(1 hrough (c)(5) above.

responsibility is to ensure the following: (a) the weight ofthe load and its approximate center o gravity have been obtained, provided, or calculated

电网检修工程预算定额 第二册 输电线路工程(2015年版) 4.33.1 General

Priortosignalingcraneoperations,signaipersonssha pe tested by a designated person and demonstrate their qualifications in the following areas:

For operations not covered by para. additions to or modifications of the standard signals may be required. In such cases, the required special signals shall be agreed upon in advance by the lift director, pperator, and signalperson.These special signals should not be in conflict with the standard signals

Kailclamps,ifused,shouldhaveslackbetweenthepoint ofattachmenttotherail andtheendfastened tothecrane. Rail clamps shall not be used as a means of restraining tipping of a crane.

Portal and pedestal cranes should not be installed where any part of the crane or load can encroach within50ft(15.25m)ofpowerlines.Wherepower line encroachment cannot beavoided,operational re quirements shall be in accordance withASME B30.3

(a) Necessary clothing and personal belongings shal be stored in such a manner as to not interfere with access oroperation. (b) Tools, oilcans, waste, and other necessary articles shall be stored in the toolbox and shall not be permitted to lav loose in orahout.thecah

running (c) Smoking or open flames shall be prohibited in th refuelingarea

TB／T 1910-2018标准下载running (c) Smoking or open flames shall be prohibited in the refueling area.