GB/T 13638-2008 English PDF

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GB/T 13638-2008: Water level control and alarm devices for industrial boilers
Status: Valid

GB/T 13638: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 13638-2008	279	Add to Cart	3 days	Water level control and alarm devices for industrial boilers	Valid
GB/T 13638-1992	639	Add to Cart	5 days	Water level control and alarm devices for industrial boilers	Obsolete

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Basic data

Standard ID: GB/T 13638-2008 (GB/T13638-2008)
Description (Translated English): Water level control and alarm devices for industrial boilers
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: N12
Classification of International Standard: 25.040.40
Word Count Estimation: 12,111
Date of Issue: 2008-07-28
Date of Implementation: 2009-02-01
Older Standard (superseded by this standard): GB/T 13638-1992
Quoted Standard: GB 1576-2001; GB/T 15464; GB/T 18271.1; GB/T 18271.3; GB/T 20730.1; JB/T 1612; JB/T 9329
Regulation (derived from): Announcement of Newly Approved National Standards No. 12 of 2008 (No. 125 overall)
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 industrial boiler water level control and alarm devices product classification, technical requirements, test methods, inspection rules, marking, packaging and storage. This standard applies to the electrode, magnetic and inductive level sensor (hereinafter referred to as the sensor) and the controller of an industrial boiler water level control and alarm devices. Sensor specific technical requirements and test methods, see Appendix A (normative).

GB/T 13638-2008: Water level control and alarm devices for industrial boilers

---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.
Water level control and alarm devices for industrial boilers ICS 25.040.40 N12 National Standards of People's Republic of China Replacing GB/T 13638-1992 Industrial boiler water level control and alarm devices Posted 2008-07-28 2009-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

The revised standard and replaces GB/T 13638-1992 "industrial boiler water level control and alarm devices." The main difference between this standard and GB/T 13638-1992 are as follows. --- Updated version of normative references. a) with GB/T 20730.1 industrial process control systems with two or more analog input output instrumentation - Part 1. Performance Evaluation method instead of GB 5010; b) with GB/T 15464 instrumentation packaging technology instead of ZBY003; c) with JB/T 9329 Instrumentation transport, transportation, storage and basic environmental conditions and test methods ZBY002; d) with JB/T 1612 boiler hydrostatic test technical conditions instead of JB1612. --- Added the following references. Part a) GB/T 18271.1 process measurement and control devices - General methods and procedures for evaluating performance 1. General; b) GB/T 18271.3 process measurement and control devices - General methods and procedures for evaluating performance - Part 3. Impact amount Movies Sound test; --- In the "Power 4.5" in increased tolerance values \u200b\u200bof voltage and frequency; --- In the "5.9 supply voltage and frequency", the frequency range from 95% to 90% to 105% to 102%; 5.17 --- mechanical vibration is indicated in accordance with the provisions of GB/T 18271.3 of the vibration test; --- Rewrite the original standard of 5.18, and one of the "continuous transport impact test" to "transport crash tests" to work with the relevant standard Associate agreement; --- 6.2.1, the test controller to carry out continuous reference to the provisions of GB/T 18271.1 of; --- Table 2, the frequency change value according to the provisions of GB/T 18271.3 changed to 102% and 90% of the nominal value, respectively; --- 6.16 ambient temperature test, the supplementary provisions of the rate of change in ambient temperature should be less than 1 ℃/min; during the test cycle shall Pilot plant to be adjusted; --- Rewrite of the original standard A. 2.4 narrative; --- Delete the original standard Appendix B "industrial boiler water level control and alarm devices of type designation"; --- In accordance with the provisions of GB/T 1.1-2000 were editorial changes. Appendix A of this standard is a normative appendix. The standard proposed by China Machinery Industry Federation. This standard by the national industrial process measurement and control Standardization Technical Committee (SAC/TC124) centralized. This standard is drafted by. Shanghai Institute of Industrial Automation Instrumentation. Participated in the drafting of this standard. Shanghai Automation Instrumentation System Inspection and Testing Institute. The main drafters of this standard. Cai Wen-chi, Li Minghua, Lo Ting. This standard replaces the standards previously issued as follows. --- GB/T 13638-1992. Industrial boiler water level control and alarm devices

1 Scope

This standard specifies the industrial boiler water level control alarm device product classification, technical requirements, test methods, inspection rules, marking, packaging And storage. This standard applies to the electrode, magnetic and inductive level sensor (hereinafter referred to as sensors) and the controller of an industrial boiler Level control and alarm system (hereinafter referred to as the water level control device). Sensor-specific technical requirements and test methods in Appendix A (normative).

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB 1576-2001 industrial boiler water quality GB/T 15464 instrumentation packaging technology Part of GB/T 18271.1 process measurement and control devices - General methods and procedures for evaluating performance 1. General (GB/T 18271.1- 2000, idt IEC 61298-1.1995) GB/T 18271.3 process measurement and assessment methods and procedures - Part 3 common control device performance. effects of influence quantities test (GB/T 18271.3-2000, idt IEC 61298-3.1998) GB/T 20730.1 industrial process control systems with two or more analog input output instrumentation - Part 1. Methods of evaluating performance (GB/T 20730.1-2006, IEC 61003-1.2004, IDT) JB/T 1612 boiler hydrostatic test technical conditions JB/T 9329 Instrumentation transport, transportation, storage and basic environmental conditions and test methods

3 Terms and Definitions

GB/T 20730.1 and established the following terms and definitions apply to this standard. 3.1 Industrial boiler water level (fixed) control and alarm action means having a bit of formula. 3.2 Industrial boiler water level alarm and continuous control device having the role. 3.3 Industrial boiler water level control beyond the control of the water level alarm range. 3.4 Industrial boiler water level control and alarm devices can display level interval. ......

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