GB/T 28471.1-2012Safety barrier for use in industrial-process measure and control systems - Part 1: General technical specification (English PDF)

Foreword

GB/T 28471 "industrial process measurement and control systems Isolated Barrier" is divided into two parts.

--- Part 1. General requirements;

--- Part 2. Methods for performance evaluation. This part of GB/T 28471 Part 1: This section drafted in accordance with GB/T 1.1-2009 given rules.

This section explosion-proof performance by GB 3836.1 "Explosive atmospheres - Part 1: General requirements Equipment", GB 3836.4 "explosive ring Habitat - Part 4. "i" provides for the protection of equipment, "prepared by the intrinsically safe.

This part of the explosion-proof performance and safety requirements for the mandatory requirements, other technical requirements are recommended requirements.

Appendix A of this section is normative appendix, Appendix B is an informative annex.

Introduction

This section meet the needs of industrial process measurement and control systems Isolated Barrier technology development, further and IEC Guide and Directory Standards, given the isolated safety barrier of general technical conditions.

This section provides the content, intended to provide guidance for the isolated safety barrier design, development, research, product standards for enterprises to prepare barrier Provide evidence.

1 Scope

This section GB/T 28471 requirements for industrial process measurement and control systems Terms and definitions Isolated Barrier, classification, to Requirements, marking, packaging, storage and transportation.

This section applies to industrial process measurement and control systems Isolated Barrier (hereinafter referred to as barrier).

This section does not apply to class I (coal mine) and Class III (dust or fibers atmospheres) explosion-proof electrical equipment. Barrier is a device context intrinsically safe system.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 2423.4-2008 Environmental testing for electric and electronic products Part 2: Test methods - Test Db alternating hot and humid (12h 12h cycle) (IEC 60068-2-30:2005, IDT)

GB 3836.1 explosive atmospheres - Part 1: General requirements Equipment (GB 3836.1-2010, IEC 60079-0:2007, MOD)

GB 3836.4 explosive atmospheres - Part 4. the intrinsically safe "i" Device Protection (GB 3836.4-2010, IEC 60079-11:2006, MOD)

GB 3836.13 Electrical apparatus for explosive gas atmospheres - Part 13. electrical equipment for explosive gas atmospheres Overhaul (GB 3836.13-1997, neqIEC 60079-19.1993)

GB 3836.15 Electrical apparatus for explosive gas atmospheres - Part 15: Electrical installations in hazardous locations (except coal mines) (GB 3836.15-2000, eqv IEC 60079-14:1996)

GB 3836.16 Electrical apparatus for explosive gas atmospheres - Part 16: Electrical installations inspection and maintenance (GB 3836.16-2006, IEC 60079-17:2002, IDT)

GB 3836.18 Explosive atmospheres - Part 18: Intrinsically safe systems

GB 4208-2008 housing protection (IP Code) (IEC 60529:2001, IDT)

GB/T 9969-2008 General Industrial Product Manual

GB/T 13384-2008 mechanical and electrical products packaging General technical conditions

GB/T 17212-1998 industrial process measurement and control - Terms and definitions (idt IEC 60902. 1987)

GB/T 17614.1-2008 industrial process control systems use transmitters - Part 1: Methods of evaluating performance (IEC 60770-1. 1999, IDT)

GB/T 18271.1-2000 Process measurement and control devices - General methods and procedures for evaluating performance - Part 1: General (idt IEC 61298:1995)

GB/T 18271.2-2000 Process measurement and control devices - General methods and procedures for evaluating performance - Part 2. under reference conditions Test (idt IEC 61298-2:1995)

GB/T 18271.3-2000 Process measurement and control devices - General methods and procedures for evaluating performance - Part 3. effects of influence quantities Test (idt IEC 61298-3:1998)