GB/T 24811.2-2009 English PDF

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GB/T 24811.2-2009: Cranes and lifting appliances -- Selection of wire ropes -- Part 2: Mobile cranes -- Coefficient of utilization
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 24811.2-2009	94	Add to Cart	3 days	Cranes and lifting appliances -- Selection of wire ropes -- Part 2: Mobile cranes -- Coefficient of utilization	Valid

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Basic data

Standard ID: GB/T 24811.2-2009 (GB/T24811.2-2009)
Description (Translated English): Cranes and lifting appliances -- Selection of wire ropes -- Part 2: Mobile cranes -- Coefficient of utilization
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J80
Classification of International Standard: 53.020.30
Word Count Estimation: 5,524
Date of Issue: 2009-12-15
Date of Implementation: 2010-07-01
Quoted Standard: GB/T 20863.2; GB/T 24811.1; ISO 4306-2
Adopted Standard: ISO 4308-2-1988, IDT
Regulation (derived from): National Standard Approval Announcement 2009 No.15
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the general Benjamin rope for mobile cranes and minimal actual utilization coefficient of resistance Zp twist rope. This section applies to all defined ISO 4306-2 mobile cranes.

GB/T 24811.2-2009: Cranes and lifting appliances -- Selection of wire ropes -- Part 2: Mobile cranes -- Coefficient of utilization

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Cranes and lifting appliances.Selection of wire ropes.Part 2. Mobile cranes.Coefficient of utilization ICS 53.020.30 J80 National Standards of People's Republic of China GB/T 24811.2-2009/ISO 4308-2. 1988 Cranes and lifting appliances Selection of wire ropes Part 2. Mobile cranes utilization factor (ISO 4308-2. 1988, IDT) Posted 2009-12-15 2010-07-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 24811 "Cranes and Lifting rope selection" is divided into two parts. --- Part 1. General; --- Part 2. Mobile cranes utilization factor. This section GB/T 24811 Part 2. This part identical with ISO 4308-2. 1988 "Cranes and lifting appliances Selection of wire ropes - Part 2. Mobile cranes Utilization factor "(in English). This section is equivalent translation ISO 4308-2. 1988. For ease of use, this section made the following editorial changes. --- The term "this part of ISO 4308" with the words "GB/T 24811 in this section"; --- Delete ISO 4308-2. 1988 Foreword and Introduction; "." --- With a decimal point instead of a comma as the decimal point, ""; --- For ISO 4308-2. 1988 international standard references, use has been adopted as the equivalent of the standard instead of the corresponding international standards, The other is not identical with direct reference to international standards for our standards. This part is proposed by China Machinery Industry Federation. This part of the National Standardization Technical Committee crane (SAC/TC227) centralized. This section is drafted. XCMG Xuzhou Heavy Machinery Co., Ltd., Changsha Zoomlion Heavy Industry Science and Technology Development Co., Ltd. The main drafters of this section. Xu Zhou, Jia Feng body, Li Weimin. GB/T 24811.2-2009/ISO 4308-2. 1988 Cranes and lifting appliances Selection of wire ropes Part 2. Mobile cranes utilization factor

1 Scope

This section GB/T 24811 specifies the general wire rope for mobile cranes lines and the actual utilization of the minimum twist rope barrier Value Zp (as defined in GB/T 24811.1). This section applies to all defined in ISO 4306-2 mobile crane.

2 Normative references

The following documents contain provisions which, through reference GB/T 24811 in this section constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 20863.2 crane classification - Part 2. Mobile cranes (GB/T 20863.2-2007, ISO 4301-2. 1985, IDT) GB/T 24811.1 cranes and crane Selection of wire ropes - Part 1. General (GB/T 24811.1-2009, ISO 4308-1.2003, IDT) ISO 4306-2 Cranes - Terminology - Part 2. Mobile cranes 3.1 General Rope According to GB/T 20863.2 crane machine grading and institutions, the minimum utilization factor generally rope Zp Table 1. Table 1 General a rope crane Working conditions Crane Machine Working level Rope sports Hoisting and luffing telescopic mechanism Working level Zp mechanism Working level Rope work Zp Installation of rope Zp Static rope Rope work Zp Installation of rope Zp General use Regular use Heavy use A1 A3 A4 M3 M4 M5 3.55 4.00 4.50 M2 M3 M3 3.35 3.55 3.55 3.05 3.05 3.05 2.73 2.73 2.73 a well known, depends on the safe use of wire rope wire rope inspection and discard criteria of application. 3.2 rotating wire rope barrier Rotating wire rope barrier is an outer layer 8 8 shares or shares over which the inner strands and twist to the opposite rope. according to Classification GB/T 20863.2, minimum utilization factor hindered rotation rope Zp Table 2. GB/T 24811.2-2009/ISO 4308-2. 1988 ......

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