GB/T 26780-2011 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 26780-2011 | English | 70 |
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The safety requirement of fuel system for compressed natural gas vehicle in the collision
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GB/T 26780-2011: The safety requirement of fuel system for compressed natural gas vehicle in the collision
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT26780-2011
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.60
T 20
The Safety Requirement of
Fuel System for Compressed
Natural Gas Vehicle in the Collision
Issued on. JULY 20, 2011
Implemented on. JANUARY 1, 2012
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative References... 4
3 Terms and Definitions... 4
4 Technical Requirements... 5
5 Test Methods... 5
Foreword
This Standard was drafted as per the rules specified in GB/T 1.1-2009.
The technical contents of this Standard refers to the United States FMVSS 303
Regulation Fuel System Integrity of Compressed Natural Gas Vehicles (2006 English
Version).
This Standard was proposed by the Ministry of Industry and Information Technology.
This Standard shall be under the jurisdiction of National Technical Committee for
Standardization of Vehicles (SAC/TC 114).
Drafting organizations of this Standard. China Automotive Technology & Research
Center, Dongfeng Peugeot Citroen Automobile Company LTD, Chery Automobile Co.,
Ltd., and Beiqi Foton Motor Co., Ltd..
Chief drafting staffs of this Standard. Sun Zhendong, Liu Guibin, Zhou Yang, Wang
Yan, Yang Jian, Wang Yang, Guo Yan, and Feng Yi.
The Safety Requirement of
Fuel System for Compressed
Natural Gas Vehicle in the Collision
1 Scope
This Standard specifies the safety requirement and test methods of the fuel system for
compressed natural gas vehicle in the collision.
This Standard is applicable to the M1 vehicles with fuel system adopting compressed
natural gas, which include bi-fuel CNG vehicle and dedicated CNG vehicle; other
related types of vehicles can also refer to this Standard for implementation.
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) are applicable to this document.
GB 11551 The Protection of the Occupants in the event of a Frontal Collision for
Passenger Vehicle
GB/T 17895 Natural Gas Vehicle and Liquefied Petroleum Gas Vehicle –
Vocabulary
3 Terms and Definitions
The following terms and definitions and those ones stipulated in GB/T 17895 are
applicable to this document.
3.1 Bi-fuel CNG vehicle
The vehicle with two mutually-independently fuel supply systems, thereof one set of
system supplies compressed natural gas, while the other set of system supplies the
fuel beyond the compressed natural gas; these two sets of fuel supply systems can
respectively rather than jointly supply fuels to the motor.
4 Technical Requirements
Respectively completer the rear-end collision test, frontal collision test, lateral collision
test specified in 5.2, 5.3, 5.4; the CNG fuel system after each collision test shall meet
the following requirements.
5 Test Methods
5.1 Preparation before test
5.1.1 Select and Reserve an appropriate location on the high-pressure piping system
of the test vehicle to install an inlet horn, where a three-way connector shall be
mounted; the two ends of the three-way connector shall be installed pressure sensor
and cut-off valve for gas inlet and outlet, and the third end shall be connected with
high-pressure piping system.
5.2 Rear-end collision test
The test forms and methods shall be performed as per the relevant provisions of GB
20072; while after the test, it shall conform to the provisions of Chapter 4.
5.3 Frontal collision test
The test forms and methods shall be performed as per the relevant provisions of GB
11551; while after the test, it shall conform to the provisions of Chapter 4.
5.4 Lateral collision test
The test forms and methods shall be performed as per the relevant provisions of GB
20071; while after the test, it shall conform to the provisions of Chapter 4.
5.5 Sealability test of CNG fuel system
After the completion of collision test, connect the pressure gauge with working
pressure range of 1.5 times with pressure sensor end on the three-way connector;
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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