Ex Protection

ATEX directive - Product Directive 1994/9/EC

This has been mandatory in Europe from 01.07.2003, and covers the regulations conserning apparatus and protective systems for use in potentially explosive atmospheres. The directive has four chapters which are subdevided into 16 articles. In each chapter it is made reference to the Annex I to XI, which include 7 modules.

For full information visit www.bartec-group.com/atex.

Content of directive 94/9/EC
Main part
Chapter Article Heading
I 1-7 Scope of application, places in service and reff movement of goods
II 8-9 Conformity assessment procedures
III 10-11 CE marking of conformity
IV 12-16 Concluding provisions
Annexes
I Criteria of decision for the classification of groups of apparatus in categories
II Essential safety and health requirements for the conception and construction of apparatus and protective systems for use in potentially explosive atmospheres
III Module: EC-type examination
IV Module: Quality assurance of the production
V Module: Inspection of the products
VI Module: Conformity with the design
VII Module: Quality assurance of the product
VIII Module: Internal production control
IX Module: Individual test
X CE marking and contests of the EC certificate of conformity
XI Minimum criteria to be taken into accounts by the member states for the authorization of testing laboratories

The Directive 1994/9/EC is dividing the apparatus/equipment into groups and categories:

  • Apparatus/equipment Group I apply for mining. This group is subdivided into categories M1 & M2.
  • Apparatus/equipment Group II applies for all other (surface) areas. This group is subdivided into categories 1, 2 and 3.
Group
Mining Industries

Group
Regular Industries
(gas+dust hazardous areas)
Category Category Category Category Category

Very high level of protection

(safe with 2 faults)

Must remain functional under explosive atmosphere

High level of protection

(safe with 1 fault)

De-energized under explosive atmosphere

Very high level of protection

(safe with 2 faults)



High level of protection

(safe with 1 fault)



Normal level of protection

(safe during normal operation)


Marking
I M1 I M2 II 1 G (Gas)II 1 D (Dust) II 2 G (Gas)II 2 D (Dust) II 3 G (Gas)II 3 D (Dust)

Electrical Equipment

Area
Zone
Equipment
category
How to comply Production requirements
2 3 The manufacturer to evaluate the product according to valid standard/Directives, and create a technical file and subsequently issuing an EC D.O.C (Declaration of Conformity) The manufacturer needs to have a production quality system
1 2 EC-type examination certificate from NB
(Notified body, DNV, Nemko, INERIS e.g.)
The manufacturer needs to have a production quality system and obtain a Production Quality Assurance Notification from NB
0 1 EC-type examination certificate from NB
(Notified Body, DNV, Nemko, INERIS e.g.)

Mechanical Equipment

Area
Zone
Equipment
category
How to be in compliance with the Atex Directive
2 3 To be verified by the manufacturer and submit a Technical file
Manufacturer to issue EC D.O.C.
1 2 To be verified by manufacturer and submit technical file to NB
(Nemko, DNV e.g.)
Manufacturer to issue EC D.O.C
0 1 To be certified by NB
Manufacturer to issue EC D.O.C

Atex Marking

ATEX Marking

Note:

The equipment also needs to be marked with the conventional protection mode (Ex...) according to EN/IEC 60079-0 (EN/IEC 61241-0 for dust).

Operating instruction/user manual:

The operating instruction of the manufacturer must clearly define the intended use of the equipment by the operator. The minimum requirements for the operating instruction are amongst others:

  • Information about safety aspects
  • Installation
  • Putting into service
  • Use
  • Assembling and dismantling
  • Maintenance (servicing and emergency repair)
  • Adjustment

Manufacturer's Declaration of Conformity (EC D.O.C.)

Equipment and systems can be replaced on the market, only if market with the CE mark and complete with operating instructions and manufacturer's Declaration of conformity. The CE conformity marking and the issued Declaration of Conformity confirm that the product complies with all requirements and assessments and assessment procedures specified in the EC Directives.

Note:

According to Directive 94/9/EC the mandatory evidence of complying with this is given in the EC D.O.C. including the operating instructions.

Explosive Atmosphere

Atex Directive

Product Directive
1994/9/EC

User Directive
1999/92/EC

Ignition Sources

Basic Electrical Techniques

Equipment Protection Level

IP-Rating