ДСТУ EN ISO 80079-36:2017 Середовища вибухонебезпечні. Частина 36. Неелектричне устатковання для вибухонебезпечних атмосфер. Основний метод і вимоги (EN ISO 80079-36:2016, IDT; ISO 80079-36:2016, IDT)

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EN ISO 80079-36:2016

Explosive atmospheres —
Part 36: Non-electrical equipment for explosive atmospheres —
Basic method and requirements (ISO 80079-36:2016)

прийнято як національний стандарт
методом «підтвердження» за позначенням
 

ДСТУ EN ISO 80079-36:2017
(EN ISO 80079-36:2016, IDT)

Середовища вибухонебезпечні.
Частина 36. Неелектричне устатковання для вибухонебезпечних атмосфер.
Основний метод і вимоги

З наданням чинності від 2017-07-26

Contents

European Foreword

Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2014/34/EU

Annex ZB (informative) Correspondence of equipment groups

Annex ZC (informative) Significant changes between this European Standard and EN 13463-1:2009

Contents

Foreword

Introduction

1 Scope

2 Normative references

3 Terms and definitions4 EPL and equipment groups

4.1 EPL

4.2 Group I

4.3 Group II

4.4 Group III

4.5 Equipment for specific explosive gas atmospheres

5 Ignition hazard assessment

5.1 General requirements

5.2 Procedure of ignition hazard assessment

5.2.1 Formal Ignition hazard identification and assessment

5.2.2 Group I equipment assessment

5.2.3 Group II and III equipment assessment

5.2.4 Assessment with malfunctions

5.2.5 Basic information necessary for the ignition hazard assessments

5.2.6 Ignition hazard assessment report

6 Assessment of possible ignition sources and control means.

6.1 General

6.2 Hot surfaces

6.2.1 General

6.2.2 Ambient temperatures

6.2.3 Establishing the maximum surface temperature

6.2.4 Group I equipment

6.2.5 Group II equipment

6.2.6 Special cases for Group I and Group II equipment

6.2.7 Group III equipment

6.3 Flames and hot gases (including hot particles).

6.4 Mechanically generated sparks and hot surfaces

6.4.1 General

6.4.2 Assessment of sparks generated by single impacts

6.4.3 Assessment of sparks and hot surfaces generated by friction

6.4.4 External equipment parts containing light metals

6.5 Electrical ignition sources except stray current

6.6 Stray electric currents, cathodic corrosion protection

6.6.1 Internal sources

6.6.2 External sources

6.7 Static electricity.

6.7.1 General

6.7.2 Connection facilities for earthing conducting parts

6.7.3 Prevention of highly efficient charge generating mechanisms (leading to propagating brush discharges on non-conductive layers and coatings)

6.7.4 Equipment group I

6.7.5 Equipment group II

6.7.6 Equipment group III

6.8 Adiabatic compression and shock waves

6.9 Exothermic reactions, including self-ignition of dusts

7 Additional considerations

7.1 Dust deposits and other material in the gap of moving parts

7.2 Dust deposits and other material in the flame arresters incorporated in the equipment

7.3 Opening times of enclosures

7.4 Non-metallic enclosures and non-metallic parts of the equipment

7.4.1 General

7.4.2 Specification of the materials

7.4.3 Thermal endurance

7.5 Removable parts

7.6 Materials used for cementing

7.7 Light transmitting parts

7.8 Stored energy

8. Verification and tests

8.1 General

8.2 Determination of the maximum surface temperature

8.2.1 General

8.2.2 Hot Surface Ignition Test

8.3 Mechanical tests

8.3.1 Test for resistance to impact

8.3.2 Drop test.

8.3.3 Required results

8.4 Additional tests of non-metallic parts of the equipment relevant for explosion protection..

8.4.1 Test temperatures

8.4.2 Tests for Group I equipment

8.4.3 Tests for Group II and III equipment

8.4.4 Thermal endurance to heat

8.4.5 Thermal endurance to cold

8.4.6 Resistance to chemical substances for Group I equipment

8.4.7 Mechanical resistance tests

8.4.8 Surface resistance test of non-conductive parts of the equipment relevant for explosion prevention and protection

8.4.9 Thermal shock test

9. Documentation.

9.1 Technical documentation

9.2 Conformity with the documentation

9.3 Certificate

9.4 Responsibility for marking

10. Instructions

11. Marking

11.1 Location

11.2 General

11.3 Warning markings

11.4 Marking on very small equipment

11.5 Examples of marking

Annex A (informative) Methodology for confirming the EPL

A.1 Methodology for confirming the EPL of Group I

A.1.1 EPL Ma

A.1.2 EPL Mb

A.2 Methodology for confirming the EPL of Group II and III

A.2.1 EPL Ga and Da

A.2.2 EPL Gb and Db

A.2.3 EPL Gc and Dc

Annex B (informative) Explanation of the ignition hazard assessment procedure

B.1 Overview

B.1.1 General

B.1.2 Reporting with the help of a table

B.2 Assessment Procedure.

B.3 Assessment Steps

B.3.1 Identification of Ignition Hazards

B.3.2 Determination of measures

B.3.3 Concluding ignition hazard estimation and categorisation

B.3.4 Determination of the EPL

Annex C (informative) Examples of ignition hazard assessment

C.1 General remarks

C.2 Examples for common cases demonstrating the use of the scheme

C.3 Example of an ignition hazard assessment for a pump

C 4 Example of an ignition hazard assessment for an agitator

Annex D (normative) Charging tests with non-conductive materials

D.1 General

D.2 Principle of the test

D.3 Samples and apparatus

D.4 Procedure

D.4.1 Conditioning

D.4.2 Determination of the most efficient charging method

Annex E (informative) Consideration of misuse which can reasonably be anticipated during ignition hazard assessment procedure

E.1 General

E.2 Identification and analysis of the ignition hazards

E.3 First assessment of the ignition hazards

E.4 Determination of safety measures

E.5 Final assessment of the ignition hazards

Annex F (informative) Development of different types of incendive electrostatic discharges.

Annex G (normative) Protection concepts of types of protection "d", "p" and "t" acceptable for non-electrical equipment

Annex H (informative) Volume dependence of auto-ignition temperature

Annex I (informative) Relationship between Equipment protection levels (EPLs) and zones

Bibliography

Figure 1 - Relationship between ignition source definitions

Figure D.1 - Rubbing with a pure polyamide cloth

Figure D.2 - Discharging the charged surface of the test piece with a probe connected to earth via a 0,1 μF capacitor

Figure D.3 - Charging by the influence of a DC high voltage power

Figure F.1 - Different types of incendive electrostatic discharges

Figure H.1 - Volume dependence of auto-ignition temperature

Table 1 - Applicability of specific clauses of IEC 60079-0

Table 2 - Classification of maximum surface temperatures for Group II equipment

Table 3 - Assessment for temperature classification for small surface areas

Table 4 - Single impact energy limits for EPL Ga

Table 5 - Single impact energy limits for EPL Gb

Table 6 - Single impact energy limits for EPL Gc

Table 7 - Single impact energy limits for EPL Da, Db and Dc

Table 8 - Permitted maximum projected areas for non-conductive parts of equipment liable to become electrostatically charged

Table 9 - Thermal endurance test

Table 10 - Ambient temperature marking

Table 11 - Text of warning markings

Table B.1 -Table showing recommended documentation of an example of initial assessment of equipment related ignition sources

Table B.2 - Example for reporting of the identification of ignition hazards (step 1) and the first assessment (step 2)

Table B.3 - Example for reporting of the determination of protective measures (step 3) and the concluding estimation and categorisation (step 4)

Table C.1 - List of examples

Table C.2 - Common cases demonstrating the use of the scheme - Electrostatic discharge.

Table C.3 - Common cases demonstrating the use of the scheme - Hot surface.

Table C.4 - Common cases demonstrating the use of the scheme - Mechanical spark

Table C.5 - Ignition hazard assessment report for a pump

Table C.6 - Ignition hazard assessment report for an agitator

Table H.1 - AITs of combustibles taken from IEC 60079-20-1 as contained in Figure H.1