GB/T 28471.2-2012Safety barrier for use in industrial-process measure and control systems - Part 2: Methods of evaluating the performance (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 2.

This section Press GB/T 1.1-2009 given rule drafting.

This section explosion-proof performance by GB 3836.1 "Explosive atmospheres - Part 1: General requirements Equipment", GB 3836.4 "explosive ring Habitat - Part 4: Intrinsic safety regulations by the "i" protection equipment ".

The method of evaluating the performance of this part of the reference to GB/T 18271.1-2000 "process measurement and control devices - General methods and performance evaluation ", GB/T 18271.2-2000" General Part 2 Process measurement and control devices - General methods and procedures for evaluating performance. Program Part 1 Score. under reference test conditions ", GB/T 18271.3-2000" Part 3 process measurement and control devices - General methods and procedures for evaluating performance Part 4 of the effects of influence quantities test "and GB/T 18271.4-2000" General process measurement and control device performance evaluation methods and procedures. minutes Score. content "Evaluation report relevant regulations.

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 performance evaluation method.

This section provides the content, intended to provide guidance for the isolated safety barrier design, development, research, preparation of isolated safety barrier for enterprise production Product standards provide the basis.

1 Scope

This section GB/T 28471 requirements for industrial process measurement and control systems with the isolated safety barrier performance evaluation methods and testing rule.

This section applies to industrial process measurement and control systems isolated safety 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 28471.1-2012 industrial process measurement and control systems Isolated Barrier - Part 1: General requirements

GB/T 2423.1-2008 Environmental testing for electric and electronic products Part 2: Test methods Test A. Cold (IEC 60068-2-1:2007, IDT)

GB/T 2423.2-2008 Environmental testing for electric and electronic products Part 2: Test methods Test B. Dry heat (IEC 60068-2-2:2007, IDT)

GB/T 2423.3-2006 Environmental testing for electric and electronic products Part 2: Test methods - Test Cab. Damp heat test (IEC 60068-2-78:2001, IDT)

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/T 2423.10-2008 Environmental testing for electric and electronic products Part 2: Test methods Test Fc. Vibration (sinusoidal) (IEC 60068-2-6:1995, 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" protection devices (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 gas atmospheres - Part 15 explosive electrical equipment. Hazardous areas electrical installation (other than 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 4208-2008 housing protection (IP Code) (IEC 60529:2001, IDT)

GB 4793.1 measurement, control and laboratory safety requirements for electrical equipment Part 1: General requirements (GB 4793.1-2007, IEC 61010-1:2001, IDT)

GB/T 16842 protective shell for inspection and test equipment used with (GB/T 16842-2008, IEC 61032:1997, IDT)