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GB 15322.1-2003 English PDF (GB15322.1-2003)

GB 15322.1-2003 English PDF (GB15322.1-2003)

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GB 15322.1-2003: Combustible gas detectors -- Part 1: Point type detectors for 0~100% LEL combustible gas

This part of GB 15322 specifies the definition, classification, technical requirement, test method, marking, inspection rule and operating instruction of the point type detectors for combustible gas. This part applies to the point type detectors for 0~100% LEL combustible gas installed and used by general industrial buildings and civil buildings. This part also applies to those special detectors installed in other environments with special requirements, unless it is specified by relevant standards separately.
GB 15322.1-2003
ICS 13.220.20
C 84
GB
NATIONAL STANDARD
OF THE PEOPLE REPUBLIC OF CHINA
Replacing GB/T 15322-1994
Combustible gas detectors -
Part 1. Point type detectors for 0 ~100% LEL
combustible gas
ISSUED ON. FEBRUARY 21, 2003
IMPLEMENTED ON. DECEMBER 1, 2003
Issued by. State Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China
Table of Contents
Foreword ... 4
1 Scope ... 5
2 Normative references ... 5
3 Definitions ... 5
4 Classification ... 6
5 Technical Requirements ... 6
5.1 Performances ... 6
5.2 Performance Review of Main Components ... 10
6 Test Methods ... 10
6.1 Test Guideline ... 10
6.2 Key Part Inspection Test ... 12
6.3 Power-off Storage Test ... 12
6.4 Alarm Value Test ... 13
6.5 Directivity Test ... 13
6.6 Alarm Repeatability Test ... 14
6.7 High-Speed Air Flow Test ... 14
6.8 Pressure Fluctuation Test ... 15
6.9 Full-Scale Indicator Deviation Test ... 15
6.10 Response Time Test ... 16
6.11 High-concentration Flooding Test ... 17
6.12 Insulation Resistance Test ... 17
6.13 Voltage-withstand Test ... 18
6.14 Shoot Magnetic Field Test ... 18
6.15 Electrostatic Discharge Test... 20
6.16 Electric Transient Pulse Test ... 21
6.17 High Temperature Test ... 22
6.18 Low Temperature Test ... 23
6.19 Constant Damp and Heating test ... 23
6.20 Vibration Test ... 24
6.21 Drop Test ... 24
6.22 Long-term Stability Test ... 25
6.23 Gas Interference Test ... 25
7 Marks ... 25
7.1 Product Mark ... 25
7.2 Marks for Quality Inspection ... 26
8 Inspection Rules ... 26
8.1 Factory-exit Inspection ... 26
8.2 Type Inspection ... 26
Annex A (Normative) Point type combustible gas detector test facility ... 29 Foreword
All technical requirements, test methods, markings, inspection rules and operating instructions in this document shall be mandatory. The GB 15322 Combustible Gas Detectors includes the following seven parts.
?€? Part 1. Point type detectors for 0~100% LEL combustible gas
?€? Part 2. Independent type detectors for 0~100% LEL combustible gas
?€? Part 3. Portable type detectors for 0~100% LEL combustible gas
?€? Part 4. Point type detectors for combustible gas of artificial gas
?€? Part 5. Independent type detectors for combustible gas of artificial gas ?€? Part 6. Portable type detectors for combustible gas of artificial gas ?€? Part 7. Linear type detector for combustible gas
This document is the first part of GB 15322. Based on many years of implementation of the GB 15322-1994 Technical Requirements and Test Methods for Combustible Gas Detectors and our country?€?s status, the drafting panel establish the technical requirements of this part and perform relevant test and verification works during revision process, with reference to the European Standard EN50054, EN50055, EN50056, EN 50057 and EN 50058 (1999 Version).
Annex A of this part is normative.
This part was proposed by the Ministry of Public Security of the PEOPLE Republic of China.
This part shall be under the jurisdiction of the Sixth Branch of National Firefighting Standardization Technology Committee.
The responsible drafting organization of this part. Shenyang Firefighting Science Research Institution of the Public Security Ministry.
Participating drafting organizations of this part. Beijing Keliheng Safe Equipment Co., Ltd, Beijing Dianbo Science and Technology Development Co., Ltd, Fuyang Huaxin Electric Device Co., Ltd., and Shenzhen Tean Electronics Co., Ltd.
Main drafters of this part. Ding Hongjun, Fei Chunxiang, Wang Yuxiang, Li Keting, Zhao Yingran, Qu Li, Guo Chunlei, Zhu Gang, and Jiang Bo.
The previous version replaced by this part is as follows.
?€? GB 15322-1994.
Combustible gas detectors Part 1. Point type detectors for 0~100% LEL
combustible gas
1 Scope
This part of GB 15322 specifies the definition, classification, technical requirement, test method, marking, inspection rule and operating instruction of the point type detectors for combustible gas.
This part applies to the point type detectors for 0~100% LEL combustible gas (hereafter referred to as the ?€?detector?€?) installed and used by general industrial buildings and civil buildings. This part also applies to those special detectors installed in other environments with special requirements, unless it is specified by relevant standards separately. 2 Normative references
The articles contained in the following documents have become part of this standard when they are quoted herein. For the dated documents so quoted, all the modifications (excluding corrections) or revisions made thereafter shall not be applicable to this Standard. For the undated documents so quoted, the latest editions shall be applicable to this Standard.
GB 16838-2005 Environmental test methods and severities for fire electronic products 3 Definitions
This part adopts the following definitions.
3.1
Alarm setting value
Preset alarm density value of combustible gas.
3.2
Alarm value
Minimum alarm density value of combustible gas.
3.3
(LEL) low explosive limit
Minimum explosive density value of combustible gas or vapor in the air
4 Classification
4.1 Based on anti-explosive requirements.
a) Explosion-proof type;
b) Non-explosion-proof type.
4.2 Based on the application environments.
a) Indoor application type;
b) Outdoor application type.
5 Technical Requirements
5.1 Performances
5.1.1 When the combustible gas density in the monitoring area reaches the alarm setting value, the detector shall send alarming signal.
5.1.2 Alarm Setting Value
If the detector has a lower limit of alarm setting value and a upper limit of alarm setting value, the lower limit of alarm setting value shall be between the range of 1%LEL~25%LEL, and the upper limit of alarm setting value shall be 50%LEL. If the detector has only one alarm setting value, the alarm setting value shall be between the range of 1%LEL~25%LEL.
5.1.3 Alarm Value
5.1.3.1 In all test items of this part, the alarm value of the detector shall not be less than 1%LEL.
5.1.3.2 The value difference between the alarm value and the alarm setting value of the detector shall be less than ??3%LEL.
5.1.4 Full-scale Indicator Deviation
For the detector that can indicate the combustible gas density, the difference between the indicated value and the actual value shall be less than ??...

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