ДСТУ EN 60079-14:2022 Вибухонебезпечні атмосфери. Частина 14. Проєктування, вибір і монтаж електроустановок (EN 60079-14:2014, IDT; IEC 60079-14:2013, IDT)



ДСТУ EN 60079-14:2022
(EN 60079-14:2014, IDT; IEC 60079-14:2013, IDT)

Вибухонебезпечні атмосфери. Частина 14. Проєктування, вибір і монтаж електроустановок

 

 
   
 
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

Introduction

1 Scope

2 Normative references

3 Terms and definitions

3.1 General

3.2 Hazardous areas

3.3 Flameproof enclosure

3.4 Increased safety

3.5 Intrinsic safety

3.6 Intrinsic safety parameters

3.7 Pressurization

3.8 Type of protection “n”

3.9 oil-immersion “o”

3.10 powder filling “q”

3.11 encapsulation “m”

3.12 protection by enclosure “t”

3.13 Electrical supply systems

3.14 Equipment

3.15 radio frequency identification RFID

4 General

4.1 General requirements

4.2 Documentation

4.3 Initial inspection

4.4 Assurance of conformity of equipment

4.5 Qualifications of personnel

5 Selection of equipment

5.1 Information requirements

5.2 Zones

5.3 Relationship between equipment protection levels (EPLs) and zones

5.4 Selection of equipment according to EPLs

5.5 Selection according to equipment grouping

5.6 Selection according to the ignition temperature of the gas, vapour or dust and ambient temperature

5.7 Selection of radiating equipment

5.8 Selection of ultrasonic equipment

5.9 Selection to cover external influences

5.10 Selection of transportable, portable and personal equipment

5.11 Rotating electrical machines

5.12 Luminaires

5.13 Plugs and socket outlets

5.14 Cells and batteries

5.15 RFID tags

5.16 Gas detection equipment

6 Protection from dangerous (incendive) sparking

6.1 Light metals as construction materials

6.2 Danger from live parts

6.3 Danger from exposed and extraneous conductive parts

6.4 Potential equalization

6.5 Static electricity

6.6 Lightning protection

6.7 Electromagnetic radiation

6.8 Cathodically protected metallic parts

6.9 Ignition by optical radiation

7 Electrical protection

8 Switch-off and electrical isolation

8.1 General

8.2 Switch-off

8.3 Electrical isolation

9 Cables and wiring systems

9.1 General

9.2 Aluminium conductors

9.3 Cables

9.4 Conduit systems

9.5 Additional requirements

9.6 Installation requirements

10 Cable entry systems and blanking elements

10.1 General

10.2 Selection of cable glands

10.3 Connections of cables to equipment

10.4 Additional requirements for entries other than Ex “d”, Ex “t” or Ex “nR”

10.5 Unused openings

10.6 Additional requirements for type of protection “d” - Flameproof enclosures

10.7 Additional requirements for type of protection “t” - Protection by enclosure

10.8 Additional requirements for type of protection “nR” - Restricted breathing enclosure

11 Rotating electrical machines

11.1 General

11.2 Motors with type of protection “d” - Flameproof enclosures

11.3 Motors with type of protection “e” - Increased safety

11.4 Motors with type of protection “p” and “pD” - Pressurized enclosures

11.5 Motors with type of protection “t” - Protection by enclosures supplied at varying frequency and voltage

11.6 Motors with type of protection “nA” - Non-sparking

12 Luminaires

13 Electric heating systems

13.1 General

13.2 Temperature monitoring

13.3 Limiting temperature

13.4 Safety device

13.5 Electrical trace heating systems

14 Additional requirements for type of protection “d” - Flameproof enclosures

14.1 General

14.2 Solid obstacles

14.3 Protection of flameproof joints

14.4 Conduit systems

15 Additional requirements for type of protection “e” - Increased safety

15.1 General

15.2 Maximum dissipated power of terminal box enclosures

15.3 Conductor terminations

15.4 Maximum number of conductors in relation to the cross-section and the permissible continuous current

16 Additional requirements for types of protection “i” - Intrinsic safety

16.1 General

16.2 Installations to meet the requirements of EPL “Gb” or “Gc” and “Db” or “De”

16.3 Installations to meet the requirements of EPL “Ga” or “Da”

16.4 Simple apparatus

16.5 Terminal boxes

16.6 Special applications

17 Additional requirements for pressurized enclosures

17.1 General

17.2 Type of protection “p”

17.3 Type of protection “pD”

17.4 Rooms for explosive gas atmosphere

18 Additional requirements for type of protection “n”

18.1 General

18.2 “nR” equipment

18.3 Combinations of terminals and conductors for general connection and junction boxes

18.4 Conductor terminations

19 Additional requirements for type of protection “o” - Oil immersion

19.1 General

19.2 External connections

20 Additional requirements for type of protection “q” - Powder filling

21 Additional requirements for type of protection “m” - Encapsulation

22 Additional requirements for type of protection “op” - Optical radiation

23 Additional requirements for type of protection “t” - Protection by enclosure

Annex A (normative) Knowledge, skills and competencies of responsible persons, operatives/technicians and designers

Annex B (informative) Safe work procedure guidelines for explosive gas atmospheres

Annex C (normative) Initial inspection - Equipment-specific inspection schedules

Annex D (informative) Electrical installations in extremely low ambient temperature

Annex E (informative) Restricted breathing test for cables

Annex F (informative) Installation of electrical trace heating systems

Annex G (normative) Potential stator winding discharge risk assessment - Ignition risk factors

Annex H (normative) Verification of intrinsically safe circuits with more than one associated apparatus with linear current/voltage characteristics

Annex I (informative) Methods of determining the maximum system voltages and currents in intrinsically safe circuits with more than one associated apparatus with linear current/voltage characteristics (as required by Annex H)

Annex J (informative) Determination of cable parameters

Annex K (normative) Additional requirements for type of protection “op” - Optical radiation

Annex L (informative) Examples of dust layers of excessive thickness

Annex M (informative) Hybrid mixtures

Bibliography