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GB/T 5905.1-2023 PDF in English


GB/T 5905.1-2023 (GB/T5905.1-2023, GBT 5905.1-2023, GBT5905.1-2023)
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GB/T 5905.1-2023: PDF in English (GBT 5905.1-2023)

GB/T 5905.1-2023
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 53.020.20
CCS J 80
Replacing GB/T 5905-2011
Cranes - Inspection and Test Code - Part 1: General
Principle
ISSUED ON: AUGUST 6, 2023
IMPLEMENTED ON: AUGUST 6, 2023
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
Introduction ... 5
1 Scope ... 6
2 Normative References ... 6
3 Terms and Definitions ... 7
4 Inspection and Test Items ... 7
5 Test Conditions, Instruments and Apparatus ... 7
6 Requirements and Methods ... 8
7 Records and Reports ... 13
Cranes - Inspection and Test Code - Part 1: General
Principle
1 Scope
This document stipulates the inspection and test items, test conditions, instruments and
apparatus, requirements and methods, records and reports for the verification of the
performance (including working parameters and load-bearing capacity, etc.) of cranes.
This document is applicable to the performance test of various types of cranes that are put into
use for the first time after manufacturing, modification and major repairs to the load-bearing
structure or components of the cranes, as defined in GB/T 6974 (all parts).
2 Normative References
The contents of the following documents constitute indispensable clauses of this document
through the normative references in the text. In terms of references with a specified date, only
versions with a specified date are applicable to this document. In terms of references without a
specified date, the latest version (including all the modifications) is applicable to this document.
GB/T 3323 (all parts) Non-destructive Testing of Welds - Radiographic Testing
GB/T 6974 (all parts) Cranes - Vocabulary
GB/T 17908 Cranes and Lifting Appliances - Technical Characteristics and Acceptance
Documents
GB/T 18851 (all parts) Non-destructive Testing - Penetrant Testing
GB/T 21457 Cranes and Related Equipment - Accuracy requirements for Measuring Parameters
during Testing
GB/T 22414 Cranes - Measurement of Velocity and Time Parameters
GB/T 22415 Cranes - Requirements for Test Loads
GB/T 26951 Non-destructive Testing of Welds - Magnetic Particle Testing
GB/T 30025 Cranes - Management of the Mass of a Crane and Its Components
JB/T 10559 Non-destructive Testing of Lifting Appliances - Ultrasonic Testing of Steel Welds
3 Terms and Definitions
The terms and definitions defined in GB/T 6974 (all parts) are applicable to this document.
4 Inspection and Test Items
4.1 The inspection and test items for the verification of the performance of the cranes include,
but are not limited to the following items:
a) Visual inspection;
b) Parameter measurement and performance verification;
c) Load test;
d) Noise test (if necessary).
4.2 For mass-produced cranes, the number of crane prototypes used for inspection and testing
shall be mutually negotiated between the manufacturer / supply-side and the demand-side.
5 Test Conditions, Instruments and Apparatus
5.1 Test Conditions
5.1.1 In order to conduct the test, the cranes shall be equipped with working devices suitable
for operation and the conditions to satisfy the test.
5.1.2 During the test, at least the following conditions shall be satisfied.
a) The test environment satisfies the working conditions of the cranes.
b) The foundation and tracks have the conditions for the operation of the cranes. For
example, for cranes operating on tracks, they shall have the conditions to operate on
tracks manufactured and laid in accordance with crane specifications; for cranes other
than cranes operating on tracks, they shall comply with the provisions of the order
contract.
c) The test load error does not exceed  1%.
d) When conducting inspections and tests outdoors, at least the following stipulations
shall be satisfied:
1) The wind speed is not greater than 8.3 m/s (30 km/h). Unless otherwise specified
in the order contract, the cranes do not need to be in the most unfavorable
position for wind action;
2) DO NOT conducting under extreme weather conditions, such as: heavy rain, fog
or snow that may affect test safety.
e) There are no obstacles that may affect the normal operation of the cranes in the test
site, and warning signs are set up to prevent unrelated personnel or vehicles from
entering the test area.
NOTE: when the requirements specified in 5.1 are exceeded, the supply-side and the demand-side
shall negotiate.
5.2 Instruments and Apparatus
5.2.1 During inspections and tests, instruments and apparatus with appropriate accuracy and
measuring range shall be selected.
5.2.2 The required instruments and apparatus shall pass the verification / calibration and be
within the verification / calibration validity period.
6 Requirements and Methods
6.1 Overview
6.1.1 The inspection and test of the cranes specified in this document are the basic requirements
and methods. The special requirements and detailed methods of each model or component are
specified in other parts of this document and product standards, such as: explosion-proof
performance test, reliability life test and launching machine through-hole test, etc.
6.1.2 When the rated hoisting capacity of the cranes depends on stability, the specified test
procedures and test loads can verify the anti-overturning stability of the cranes.
6.2 Visual Inspection
The visual inspection shall include the inspection of whether the specifications and / or
condition of all important components comply with the requirements in accordance with the
type of cranes, such as:
---electrical, hydraulic and pneumatic equipment;
---various mechanisms, important metal structures and their connecting parts of cranes;
---ladders, passages, driver’s cabs and platforms;
---control devices, lighting and signaling, wind speed measuring devices;
---all safety protection devices;
---reels, brakes, speed reducers and their supporting structures and fasteners;
---functions of limiters, indicators and safety devices;
---performance of driving device, for example, motor current under test load conditions;
---mass of important welds (if necessary).
In accordance with the actual working conditions, under no-load and rated load conditions,
verify the above basic parameters and functions.
6.3.2 The measurement of the mass of the cranes and components (if necessary) shall comply
with the stipulations of GB/T 30025.
6.3.3 The measurement of the speed and time parameters of the cranes shall comply with the
stipulations of GB/T 22414.
6.3.4 The measurement accuracy requirements of parameters in the test shall comply with the
stipulations of GB/T 21457.
6.3.5 Generally speaking, the quality inspection of important welds adopts non-destructive
testing methods, such as: ultrasonic testing, magnetic particle testing, radiographic testing and
penetrant testing, etc. When adopting ultrasonic testing, it shall be carried out in accordance
with the methods specified in JB/T 10559. When adopting magnetic particle testing, it shall be
carried out in accordance with the methods specified in GB/T 26951. When adopting
radiographic testing, it shall be carried out in accordance with the methods specified in GB/T
3323 (all parts). When adopting penetrant testing, it shall be carried out in accordance with the
methods specified in GB/T 18851 (all parts).
6.4 Load Test
6.4.1 General requirements
The load test includes the following contents:
---no-load test (the purpose is to check whether the performance of various mechanisms
and safety protection devices of the cranes is normal and ensure the safety of the load
test);
---rated load test (the purpose is to test the relevant performance indicators of the cranes
through the rated load test);
---static load test (the purpose is to test the load-bearing capacity of the cranes and various
structural components);
---dynamic load test (the purpose is to test the performance of various mechanism and
brakes of the cranes);
---stability test, if necessary (the purpose is to test the cranes’ resistance to overturning
moments).
The composition, measurement and application of the test load shall comply with the
stipulations of GB/T 22415.
6.4.2 No-load test
6.4.2.1 Before carrying out the load test, a no-load test shall be carried out.
6.4.2.2 Under no-load conditions, respectively operate each mechanism of the cranes in forward
and reverse directions, and the cumulative time shall not be less than 5 minutes. During the test,
the various mechanisms and control systems shall normally operate without any jamming or
other abnormal phenomena. The performance of safety devices of the cranes, such as: limiters,
indicators, buffers and brakes, etc., shall be normal and reliable.
6.4.2.3 In accordance with the type and operating demands of the cranes, measure or verify the
parameters and performance specified in 6.3.
6.4.3 Rated load test
6.4.3.1 Under the working conditions specified in the product standards, lift the rated hoisting
load and conduct operating action test of each mechanism of the cranes. Each action shall be
conducted for no less than 3 times.
6.4.3.2 During the test, each working mechanism shall smoothly move and normally operate,
and be able to achieve the specified functions and actions, without abnormal vibration, impact
overheating and abnormal noise, etc. The performance of safety protection devices of the cranes,
such as: limit devices, buffers and brakes, etc., shall be normal and reliable. The operating
mechanism, control system, interlocking and interlocking devices shall reliably and accurately
operate, and the feeder device shall normally work. There shall be no leakage in the hydraulic
(pneumatic) system, and the lubrication system shall normally work.
6.4.3.3 In accordance with the type and operating demands of the cranes, measure or verify the
parameters and performance specified in 6.3.
6.4.4 Static load test
6.4.4.1 During the test, the cranes shall be placed in a position and state where the main
components bear the maximum lifting load, maximum bending moment and / or maximum
axial force in accordance with the actual service condition. The test load shall be gradually
applied and lifted to a height of 100 mm ~ 200 mm above the ground. The hanging time shall
not be less than 10 minutes. Higher values shall be specified in the order contract.
If a static load test is unable to put each main component of the cranes to bear the maximum
bending moment and / or maximum axial force, the corresponding load shall be lifted at various
unfavorable positions for the static load test.
6.4.4.2 If there is no requirement for a higher value in the order contract, the test load of all
cranes shall be 1.25P; where, P is defined as:
......
 
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.