Minimum Requirements ATEX - Annex1

OMV Petrom S.A. Regulation

PE-D-HA-PRO-001-01-E Valid from: 31.03.2012 ATEX Procedure for Projects Page 2 of 22 Edition: 01

TABLE OF CONTENTS

1 Introduction.................................................................................................................................. 3

2 Range of Applicability ................................................................................................................. 4

3 Objectives..................................................................................................................................... 5

4 Content Procedure....................................................................................................................... 5

4.1 Step 1: Qualifications of Personnel .....................................................................................5

4.2 Step 2: Identification of Flammable Substances................................................................5

4.3 Step 3: Properties of Flammable Substances.....................................................................5

4.4 Step 4: Source of Release and Ventilation..........................................................................6

4.5 Step 5: Hazardous Areas Classification...............................................................................6

4.6 Step 6: Hazardous Areas Drawing......................................................................................7

4.7 Step 7: Equipment Selection ..............................................................................................7

4.8 Step 8: Installation of Equipment ......................................................................................10

4.9 Step 9: Assessment of Equiment / Installation - Initial Inspection..................................10

4.10 Step 10: Documentation for Permitting ............................................................................11

4.11 Step 11: Availability of Documents ...................................................................................12

5 Definitions and Abbreviations .................................................................................................. 13

6 References Documents ............................................................................................................. 16

7 Obsolete Documents................................................................................................................. 16

8 Annexes...................................................................................................................................... 16

8.1 Annex 1 Oil and Gas Characteristics in OMV Petrom EP.......................................................17

8.2 Annex 2 Types of Protection for Electric Equipment ............................................................18

8.3 Annex 3 Types of Protection Non-Electrical Equipment ......................................................19

8.4 Annex 4 Content of EC declaration ........................................................................................20

8.5 Annex 5 Conformity Assessment Procedure.........................................................................21

8.6 Annex 6 Deliverables List........................................................................................................22



1 Introduction Hazardous area classification is an important part of processes safety and integrity. The term hazardous area, in the meaning of this document, refers to an area created by the presence of an explosive atmosphere. The term is also known as Electrical Area Classification, in the older references, or as "zoning". In Europe and beyond, ATEX (ATmospheres EXplosive) became an accepted standard for the management of the activity in the hazardous areas in order to protect staff and assets, and is based on the same principles, regardless of the country where the facility is located. There are, however, differences between national laws governing these activities. This document outlines legislation, regulations and standards applicable in Romania in order to guide their own engineering staff or contractors due to differences from other countries. ATEX is governed by Directive 94/9/EC, Directive for equipment and by Directive 1999/92/EC, Directive for personnel. Both Directives have been transposed into the Romanian legislation. Consequently, ATEX regulations and reference standards, e.g. series of standards EN 60079, EN / ISO 80079, EN 1127 and EN 13463 are mandatory. List of reference standards are periodically updated and published in the Official Journal of the European Union, available on the website: http://ec.europa.eu/enterprise/policies/european-standards/harmonised-standards/equipment-explosive-atmosphere/index_en.htm ATEX regulations refer to all equipment, electrical and non-electrical. The latest edition of standard EN 60079-0, divides the explosive atmospheres into 3 groups: group I mines susceptible to firedamp group II gases, vapours or mist, other than those from the mines susceptible to

firedamp group III explosive dusts, other than those from the mines susceptible to firedamp

Subdivision of group II IIA, typical gas: propane IIB, typical gas: ethylene IIC, typical gas: hydrogen

Subgroup of group II are divided considering the maximum experimental safe gap MESG or minimum ignition current or MIC( minimum ignition current ) of explosive gaseous atmosphere in which the equipment may be installed (EN 60079-20-1). In oil and gas installations of OMV Petrom, EP Division, were identified explosive substances from group II (gases) and its subgroups, IIA (propane), respectively, IIB (ethylene). No substances from subgroup IIC (Hydrogen) or group III (dusts) were identified. Substances from group I (firedamp) were identified locally, e.g. in oil mine Monteoru.



Relation with other standards

Standard Status Applicable

Projects, including extensions, modernizations or changes

PE-D-HA-PRO-001-01-R_ ATEX Procedure for Projects In force Projects

EP FA HA 01 ST PETROM Standard for Areas Classification In force Projects Operation

RO-EP-SR-GDL-001-01-E _Process Safety and Integrity Engineering and Design 29112011

In force Projects

TO-HQ-02-019 Rev 00 Philosophy for Hazardous Area Classification and HVAC Onshore In force NO*

Operation-Maintenance-Procurement-Inspection-Attestations (Permits)

RO-EP-DMSS-STD-046-01-R _Standardization of types of explosion proof for low voltage electric motors ( in Romanian version) In force

Maintenance Procurement

PE-D-HA-GDL-001-01- R_ATEX_Attestation_of_Plants_06.03.2012 In force Operation Attestations

EP HA 10 PR R1 Equipment Inspection in Hazardous Areas Under review

Inspection

EP -MNT-RO-06-POL-16-01.00R_ Maintenance And Inspection Strategy Of Ex Equipment( in Romanian version)

In force Maintenance Inspection

Withdrawn

RO-EP-SR-SOW-001-01-R _Scope of Work for ATEX certification of plants ( in Romanian version) Withdrawn NO

RO-EP-SR-PRO-001-01-R_Ex Certification Procedure (in Romanian version) Withdrawn NO

RO-EP-SR-STD-001-01-E Company Standard for Selection of Ex Equipment Withdrawn NO

RI EX 9.2006 Procedure for Self-Certification for Three-Phase, Squirrel Cage Induction Motors in Normal Construction Used In Zone 2

Withdrawn NO

Note * OMV philosophy contains conflicting standards with present procedure. 2 Range of Applicability This procedure applies for the following: Projects, including extensions, modernization/upgrades or changes, starting from

concept phase until commissioning and operation readiness, including permits system, in OMV Petrom EP installations where explosive atmospheres generated by gas, vapours or mist may occur.

The procedure does not apply for the following: For installations of OMV Petrom EP beyond the Romanias borders Release of air-gas mixture as a consequence of an uncontrolled well blow-out or a

catastrophic rupture of a pipe or a pressure vessel This procedure shall be applied by the following people: Contractors and their subcontractors



Project and engineering team members of OMV Petrom E&P Ex Responsible Maintenance personnel involved in extension, modernization or changes of existent

plant. 3 Objectives This document presents the applicable regulations and standards, the steps to be followed in different phases of a project, and the documents to be prepared in order to conform to national legal requirements. In order to achieve the same outcome for all installations, documentation must meet both the requirements of authorities and the requirements of OMV Petrom. 4 Content Procedure The next chapters mentions briefly the minimum requirements and actions to be taken in engineering, design, construction and operation readiness of plants where explosive atmospheres are present or where they are expected to occur. Where, for those actions, there is an applicable standard it was preferred to refer to the appropriate standards, without going into details.

4.1 Step 1: Qualifications of Personnel The area classification should be carried out by those who understand the relevance and significance of properties of flammable materials and by those who are familiar with the process and the equipment. Such personnel should consult with safety, electrical, mechanical and other qualified engineering personnel as required. The design of the installation, the selection of equipment and the installation covered by this standard shall be carried out only by persons whose training has included instruction on the various types of protection and installation practices, relevant rules and regulations and on the general principles of area classification. The competency of the person shall be relevant to the type of work to be undertaken. Note 1: Requirements for qualification of personnel are described in the 5th edition of standard EN 60079-14 Nota 2: According to NEx 01-06 the companies that design, construct, maintain or repair equipment in explosive atmospheres or prepare documentation for obtaining attestation of facilities shall have certified staff and specific procedures.

4.2 Step 2: Identification of Flammable Substances The identification of flammable substances is made using analysis reports of crude oil, gases or water injection. These documents are usually available to the Assets. If such reports are not available or dont contain enough data, the contractor shall order them, at his own expenses, from an authorized laboratory.

4.3 Step 3: Properties of Flammable Substances The standard EN 60079-20-1 gives the characteristics of flammable substances as follows: Equipment Subgroup / Energy of ignition Auto-ignition temperature / Temperature class Flash Point

The most common flammable substances present in plants of E&P are (in order of increasing hazard): Methane (IIA T1) Lean gas



Hexane / Octane (IIA T3) Rich gas or crude oil, H2S not present Hydrogen Sulphide (IIB T3)

Annex 1 lists the relevant properties, for this document, of crude oil, and gas. The Data has been obtained from the examination of over than 40 analysis reports and Material Safety Data Sheets (MSDS) of flammable petroleum used in E&P. Consequently the subgroup IIB and temperature class T3 cover the usual requirements for oil and gas installations from E&P. In case more hazardous substances are identified than those above mentioned they will be listed by CAS number (Chemical Abstract System). Unclassified liquids: Petroleum products having a Flash Point higher than 100 C will not be classified in the

conditions specified in the Company Standard for Areas Classification. Water Injection circuits, e.g. pumps or manifolds, where fluids contain less than 200 ppm of

hydrocarbons, is not classified. Exceptions:

o Tanks for untreated reservoir water or which may be occasionally used for oil storage o Pumps that may be used for conveying oil or because the location of those pumps fits in

the zone produced by neighbouring equipment.

Deliverable: Hazardous area classification data sheet Part I: Flammable material list and characteristics according to EN 60079-10-1

4.4 Step 4: Source of Release and Ventilation The basic elements for establishing the hazardous zones types are the identification of the sources of release and the determination of the grades of release.

4.4.1 Identification of Source of Release The sources of release may be classified as continuous, primary or secondary grade.

4.4.2 Characteristics of Ventilation Type of ventilation: natural or artificial ventilation (general or local) Degree of ventilation (dilution): high, medium, low Availability of ventilation: good, fair, poor

Combining the concepts of degree of ventilation and level of availability depending on the grade of release results in a quantitative method for the evaluation of zone type (see Annexes B and C of EN 60079-10-1).

4.5 Step 5: Hazardous Areas Classification Area classification is a method of analysing and classifying the environment where explosive gas atmospheres may be present so as to facilitate the proper selection and installation of equipment to be used in that environment. The classification also takes into account the ignition characteristics of the gas or vapour such as ignition energy (equipment group) and ignition temperature (temperature class). In particular, zone 0 or zone 1 areas should be minimised in number and extent by design or suitable operating procedures. In other words, plants and installations should be mainly zone 2 or non-hazardous. Where the release of flammable material is unavoidable, process equipment should be limited to those which give secondary grade releases or, failing this (that is where primary or continuous grade releases are unavoidable), the releases should be of very limited quantity and rate. In carrying out area classification, these principles should receive prime consideration.



Where necessary, the design, operation and location of process equipment should ensure that, even when it is operating abnormally, the amount of flammable material released into the atmosphere is minimised, so as to reduce the extent of the hazardous area. Hazardous areas are classified in zones based on the frequency and duration of explosive atmospheres. Areas (0,1, 2 or unclassified) are defined in Art. 5, Definitions. Hazardous area classification is considered for normal operation. Hazardous area classification shall be in compliance with EN 60079-10-1 and Company Standards for Areas Classification. Deliverable: Hazardous area classification data sheet Part I: List of sources of release according to EN 60079-10-1.

4.6 Step 6: Hazardous Areas Drawing After classifying areas, a risk assessment shall be performed in order to determine if the consequences of ignition of an explosive atmosphere requires the use of equipment with a level of explosion protection (EPL) higher than what would normally be required, or if you can use a device with a lower EPL than normally required. Requirements for EPL / ATEX category will be listed in the ATEX documents, including Hazardous plan to allow the correct choice of equipment. Hazardous area plan will include the following: Plans and elevations of three-dimensional model, if any, showing the type and extent of

zones (quotas) and the requirements listed below Classification of gases or vapours in relation to equipment group or subgroup Temperature class or ignition temperature of the gas or vapours existing in the

hazardous area External influences and ambient temperature Requirements for the protection level of equipment (EPL). This requirement applies even

if the consequences were not subject to a risk assessment Calculus criteria, including the source and grade of release and the type, degree and

availability of ventilation (EN 60079-10-1). Hazardous area drawings will be delivered both in a signed form, on paper, and in native format (e.g. AutoCAD), non-secured. Recommended format: A2/A3. Areas will be highlighted by patterns, according to EN 60079-10-1, so that black and white print does not create confusion. Paper format will be presented and laminated for posting in site. Deliverable: Area classification drawings.

4.7 Step 7: Equipment Selection For new installations the selected equipment must have been tested and certified in accordance with directive 94/9/EC and current editions of the standards series EN 60079, EN 13463 and EN / ISO 80079. Note: The addition, expansion or modification of existing facilities is considered a new installation.

The types of anti explosive protection are shown in Annexes 2 and 3. If no risk assessment was done then the typical risk assessment from EN 60079-14 (see Table no. 1) shall be used.



Table no. 1 - Relationship between Zones, EPLs and ATEX categories

Zone Permitted explosion protection levels (EPLs) Permitted ATEX Category

0 Ga 1G

1 Gb 2G

2 Gc 3G

The use of equipment with a lower or higher EPL than was specified in the Table no. 1 shall be demonstrated. To allow access to the bidding of different manufacturers and, taking into consideration the progress of technology, references to Ex equipment will be made quoting the following: The area where the equipment will be used (zone 0,1 or 2) and,

o The required EPL, or o The required ATEX equipment category and

Equipment Group and Temperature Class (usually IIB T3) Justified: type of explosion protection.

Note 1: Mentioning the type of protection may be necessary in Detailed Design Phase, case in which e.g. for Ex i equipment (safety intrinsically), it is necessary to design appropriate circuits. Note 2: The use of a higher EPL than requirement is allowed in procurement phases as a result of a better offer. Example: the requirement is for an EPL Gc. 1st offer: intrinsically ic (EPL Gc), price A. 2nd offer: intrinsically ia (EPL Ga) or ib (EPL GB), both of them at price B < A. 2nd offer is preferred and the reason is: it presents the best price with respect of technical criteria. Note 3: Since July 2012 mentioning EPL on the marking for each Ex equipment is mandatory.

4.7.1 Conformity Assessment Procedure Depending on the intended ATEX category, the manufacturer or his authorized representative established in the EU may choose one of the procedures described in Directive 94/9/EC that ensures and declares the compliance of product with the requirements of the directive. The conformity assessment procedures allowed by the Directive are presented in Annex 5.

4.7.2 Preferred Types of Protection Table no. 2 presents the types of protection currently used in OMV Petrom EP and gives recommendations on their use. This table serves as a guide only and is not intended to influence the choice of technology. The contractor must provide justification for the use of another type of protection than the ones mentioned below (e.g. a better price for another protection type may be a reason but traditionally manufacturers offer only this type of protection is not acceptable). Types of protection unchecked in the table are not commonly used in OMV Petrom EP. Table no. 2 Types of protection currently used in OMV Petrom E&P

Recommended for: Type of protection Code According to:

I1) A2) Boxes3) Motors4)

Intrinsically safe i EN 60079-11 Yes

Protection by encapsulation m EN 60079-18 Yes

Protection by flameproof enclosures

d EN 60079-1 No Yes No No

Protection by increased safety e EN 60079-7 Yes Zone 1



Recommended for: Type of protection Code According to:

I1) A2) Boxes3) Motors4)

Protection by oil immersion o EN 60079-6

Protection by pressurized enclosures

p EN 60079-2

Protection by powder filling q EN 60079-5

Protection by using optical radiation

EN 60079-28

Non-sparking equipment n EN 60079-15 Yes

Fieldbus non-incendive concept (FNICO)

EN 60079-27

Note 1: Field instruments, e.g. sensors, transmitters, measuring equipment Note 2: Command or control devices, e.g. command buttons, solenoids Note 3: Connection or junction boxes Note 4: Three phases squirrel cage induction motor

4.7.3 Motors Supplied by Converter It is normally expected that motors and converters will be evaluated as a system. Motors intended to be driven by converters will have the following additional markings (in accordance with standard EN 60079-0, edition 6): "For Converter Supply" Frequency / minimum speed / maximum speed allowed Type of converter accepted

Note 1: The term converter (used for driving of electric motors) is also known as a frequency converter, inverter or variable speed drive - VSD.

Additionally, regardless of the zone (1 or 2), there are additional requirements that the following types of motors must meet: Exe with EPL Gb or Gc

o thermal protection requirements o motor and a converter shall be tested as a complete unit

Exd with EPL Gb or EPL Gc o thermal protection requirements o embedded temperature detectors, for direct controlling of temperature, o it is not mandatory for the motor and converter to be tested as a complete unit.

Ex nA with EPL Gc o Type testing of motor together with the specific converter, in accordance with EN

60079-15:2010 Note 2: Presentation of conditions for motors type Exd was made just in case and does not contradict the recommendation from Table no. 2. Note 3: Using existing motors with variable speed drives (VSD), although not recommended, may be done only for Zone 2, with accomplishing protection conditions specified above and if the manufacturer's VSD (converter) or his authorized representative issue a written declaration that it is possible and safety.



4.7.4 Gas Detectors Gas detectors, to be used as a protective measure (e.g. de-energise equipment if gas is detected), shall be used in accordance with relevant requirements of IEC 60079-29-1 and IEC 60079-29-4. Gas detection may be used as a method of protection enabling the use of electrical equipment in hazardous areas where that equipment might not have otherwise been allowed. Reference: IEC 60079-14, ed.5, Annex N.

4.7.5 Light Metals as Construction Materials Installation materials (e.g. cable trays, mounting plates, weather protection) shall not contain more light metals than required by IEC 60079-0 for equipment.

4.8 Step 8: Installation of Equipment The equipment shall be installed in accordance with its documentation. Reference standard: EN 60079-14.

4.9 Step 9: Assessment of Equiment / Installation - Initial Inspection After the installation of the equipment is complete, an initial inspection must be carried out in accordance with IEC 60079-14 Explosive atmospheres, Edition 5 - Part 14: Design, selection and construction of electrical installations. Note: Development of this standard is ongoing. Until the next edition is in force, the initial inspection shall be performed in accordance with the current edition of standard EN 60079-17 Explosive atmospheres - Part 17: Maintenance and inspection of electrical installations. The following aspects will be considered for initial inspection: That the initial checking of electrical installation was performed according to SR HD

60364-6 and that the verification report has been prepared and is available. That equipment is properly marked with CE marking and Ex, in accordance with

Directive 94/9/EC, with referenced standard and EC certificate / declaration of conformity.

That the classification of the installed equipment is appropriate for the installation area. That the Ex Certificate / declaration of conformity are available and contain the minimum

information specified in Directive 94/9/EC and relevant standards. The content of Declaration of Conformity is described in Annex 4.

Declaration of manufacturer for equipment without its own source of ignition and are considered out of scope of Directive 94/9/EC

Declaration of manufacturer for equipment considered as "simple apparatus" according to Directive 94/9

That documents for equipment with special conditions of operation (e.g. equipment having certificate number with the suffix "_X") have been provided, and that the installation has taken into account any relevant special conditions.

Descriptive declaration of the intrinsically safety system Risk assessment for assemblies, issued by the manufacturer, as it is defined in ATEX

Guide 3rd Edition / 2009. The results of the assessment are to be recorded in a table that will contain at least the information listed in Table 3. Initial inspection report will be recorded.



Table no. 3 Equipment list

Denumire echipament sau instalaie Zona

Fabricant / An fabricaie

Date tehnice (Un, In,

Nn)

Tip protecie

(Ex) Grupa

Clasa de temperatura

Certificat Ex

Grad de protecie (Codul IP)

Categoria ATEX /

EPL

Conditii Speciale

Name of equipment/installation Zone

Manufacturer / Year

Technical data

Ex protection

type Group

Temperature Class

Ex certificate

Ingress protection (IP code)

ATEX category

/ EPL

Special Conditions

4.10 Step 10: Documentation for Permitting This section presents the documentation to be produced/reviewed and attestations to be obtained, for installations in explosive atmospheres, namely: Explosion protection document as a requirement of the Directive 1999/92/EC, also

known as ATEX 137 or the directive for staff, transposed by HG 1058/2006 Attestation of plant, based on documentation and an inspection on site, by National

Authority, as a provision of normative NEx 01-06. According to the normative and regulations mentioned above the responsibility for preparing documentation and obtaining the attestation is the responsibility of the user. Considering that, for new and modernized plants and for the various phases of the project, the majority of these documents are prepared by the Contractor the responsibility for documentation preparation and for obtaining of attestations will be transferred, by clear provisions of contract, to the Contractor.

4.10.1 Explosion Protection Documentation The documentation shall contain, as minimum: Presentation memo Area classification drawings Classification of Ex equipment and Ex certificates Guidelines for maintenance of equipment, as per SR EN 60079-17 Qualification and training of personnel referring to protection against explosion Nomination of Ex responsible person Specifications for PPE Explosion risk assessment. 4.10.2 Document for Attestation of Plants by INSEMEX

The documentation shall contain, as minimum: General plant description Process flow diagrams The list of equipment (electrical and mechanical) placed in classified areas (e.g. motors,

instruments, pumps, lighting, junction boxes). The list will include the equipments rated characteristics. An example of equipment list is presented in table no. 3.

Areas classification drawings Assessment of conformity with the requirements of Annex 1 of NEx 01-06 Initial inspection of equipment as per standard SR EN 60079-17.



4.10.3 Document Presentation The above mentioned documents will be approved by User before they are submitted to the Authority. After receipt of the attestation, the Contractor will send to user the documentation together with the attestation. The Documentation will be delivered with respect of the following requirements: Both in hardcopy and in softcopy Original/native documents in editable format (MS Office, Adobe 6, AutoCAD 6) Romanian and English languages Separate file (from other technical documents) Contractor may combine both sets of documents in a single file Taxes and other expenses required for attestation will be Contractor's responsibility.

Note: Some requirements e.g. "Nomination of Ex responsible person" will be fulfilled with user's support.

4.10.4 Delivery Time The initial inspection shall be carried out after the mounting of equipment and before it is put in function (energised). The attestation shall be obtained before the equipment is deemed to be ready for operation. It is the Contractor's responsibility for the timely submission of documents and coordination with Authority.

4.11 Step 11: Availability of Documents In order to ensure correct installation or extension of plants, the following information, additional to the requirements for non-hazardous areas, is required, where applicable. Reference: EN 60079-14 standard, ed. 5

4.11.1 Site Area classification drawing, as indicated in [4.6] Optional assessment of consequences of ignition Material characteristics including electrical resistivity 4.11.2 Equipment Instructions for installation and initial inspection Documents for electrical equipment with conditions of use, e.g. for equipment with

certificate numbers which have the suffix _X

Descriptive system document for the intrinsically safe system Details of any relevant calculation, e.g. for purging rates, for instruments or analyser

houses

NOTE: As part of the obtained documentation, information for maintenance and repair should be available in accordance with IEC 60079-17 and IEC 60079-19 respectively.

4.11.3 Installations Necessary information to ensure correct installation of the equipment provided in a form

which is suitable to the personnel responsible for this activity (see IEC 60079-0 Instructions)



Documentation relating to the suitability of the equipment for the area and environment to which it will be exposed, e.g. temperature ratings, type of protection, IP rating, corrosion resistance

Details of the type of wiring system Record of selection criteria for cable entry system, for compliance with the

requirements for particular types of protection

Drawings and schedules relating to identification of circuits. 4.11.4 Personnel Evidence of personnel competency (Annex A of EN 60079-14, ed.5). 4.11.5 Approval of Documents

Documents will be approved by competent persons and who own a valid attestation, according to [4.1], and who meet the required approval level given in the Discipline Authority Framework (DAF) and specified in Annex 6.

4.11.6 Documents Keeping After commissioning of plant, the documents mentioned in this chapter, together with those mentioned in 4.9 and 4.10, including documentation for obtaining certificates, will be posted on SharePoint, by care of Responsible Ex, with support of Technical Compliance Office Facility Engineering Department.

4.11.7 Deliverable Deliverables by project phases, maturity and level of approval are presented in Annex 6 5 Definitions and Abbreviations For the purpose of this procedure the following definitions are given:

Asset Operating and Production Area (subunits) of Division OMV Petrom E&P

E&P OMV Exploration & Production Division of Petrom

Ex Responsible (ATEX expert)

The person appointed by Asset Manager, part of the Facility Engineering, included in PE Asset Department, in order to comply with the requirements of the Explosion Protection Document. This person must be attested by INSEMEX.

FE Facility Engineering PE Asset Project and Engineering Department from Asset ATEX ATmosfere EXplosive (Directive 94/9/CE) Attestation Document issued by the Authority Authority National Authority for Explosion Protection, INCD INSEMEX

Petroani

Explosive gas atmosphere

Mixture with air, under atmospheric conditions, of flammable substances in the form of gas or vapour, which, after ignition, permits self-sustaining flame propagation in entire mixture (Directive 94/9/EC)

Hazardous area (on account of explosive gas atmospheres)

An area in which an explosive gas atmosphere is or may be expected to be present, in such as quantities to require special precautions for the construction, installation and use of equipment (IEV 426)



ATEX Category Defined by directive 94/9/EC. Similarly definitions with EPL ATEX categories are, for Group II - gases and vapours: 1G, 2G and 3G

Ex Certificate Certificate of conformity , as defined in Directive 94/9/EC CAS number Chemical Abstract System. Unique numerical identifier assigned to each substance described in scientific literature Temperature Class Classification of equipment for explosive atmospheres in terms of maximum surface temperature (IEV426). Documentation Set of documents prepared in accordance with and in order to accomplish legal requirements Declaration of

Conformity Document prepared by manufacturer or his authorized representative in accordance with Directive 94/9/CE

Explosion Protection Document

Documentation elaborated as a requirements and in conformity whit Directive 1999/92/EC respectively GD 1058/2006

Equipment protection level (EPL)

The level of protection assigned to equipment based on its risk of becoming a source of ignition and distinguishing the differences between explosive gas atmospheres, explosive dust atmospheres and coal mines.

EPL Ga ATEX II 1G Category

Equipment for explosive gas atmospheres, having a "very high" level of protection, which is not a source of ignition in normal operation, expected malfunction or when subject to rare malfunction. Such equipment will have a form of protection, which will remain effective even in the presence of two potential faults (for example, intrinsic safety, level of protection ia), or will have two independent means of protection (for example, Ex e and Ex d acting independently of each other).

EPLGb ATEX II 2G Category

Equipment for explosive gas atmospheres, having a "high" level of protection, which is not a source of ignition in normal operation or when subject to faults that may be expected, though not necessarily on a regular basis. (The majority of the standard protection concepts bring equipment within this equipment protection level).

EPL Gc ATEX II 3G Category

Equipment for explosive gas atmospheres, having a "normal" level of protection, which is not a source of ignition in normal operation and which may have some additional protection to ensure that it remains inactive as an ignition source in the case of regular expected occurrences (for example failure of a lamp). Typically this will be an Ex n equipment.

(Auto) Ignition temperature of an explosive gas atmosphere

Lowest temperature of a heated surface which, under specified conditions according to specific conditions will ignite a flammable substance in the form of a gas or vapour mixture with air( IEV 426, EN 60079-20-1)

FTS/MSDS Material Safety Data Sheet prepared in accordance with ISO 11014, as a requirement of the Directive 91/155/EC



Normal operation

Situation when the equipment is operating within its designed parameters NOTE 1: Minor releases of flammable material may be part of normal operation. For example, releases from seals, which rely on wetting by the fluid that is being pumped, are considered to be minor releases. NOTE 2: Failures (such as the breakdown of pump seals, flange gaskets or spillages caused by accidents), which involve urgent repairs or shutdown, are not considered to be part of normal operation nor are they considered to be catastrophic. NOTE 3: Normal operation includes start-up and shutdown conditions.

(Equipment) Group

Classification of electrical equipment related to the explosive atmosphere for which it is to be used (IEV 426) NOTE: EN 60079-0 standard, ed. 5, defines 3 groups: group I(mines susceptible to firedamp) group II (vapours and gases) group III (dusts)

LEL - lower explosive limit Concentration of flammable gas, vapour or mist in air below which an explosive gas atmosphere will not be formed ( IEV 426)

Protection level

Subdivision of the type of protection, correlated with the explosion protection level (EPL) that differentiates the probability for an equipment to become a source of ignition (EN 60079-0) Explanatory note: Type of intrinsically protection (i) is divided in levels of protection "ia", "ib" and ic, and that they are correlated with EPL's Ga, Gb and Gc (for explosive gas atmospheres)

Type of protection Specific measures for equipment applied to prevent ignition of explosive atmospheres surrounding ( IEV 426)

Maximum surface temperature

Highest temperature which is attained in service under the most adverse conditions (but within the specified tolerances) by any part or surface of equipment NOTE: This temperature may occur on an internal component or on the external surface of the enclosure, depending upon the type of protection employed

Flash point Lowest liquid temperature at which, under certain standardized conditions, a liquid gives off vapours in a quantity such as to be capable of forming an ignitable vapour/air mixture( IEV 426)

UEL- upper explosive limit Concentration of flammable gas, vapour or mist in air, above which an explosive gas atmosphere will not be formed ( IEV 426)

User For the purpose of Directive 99/99/EC and NEx 01-06: Company who operate the plant. The user may not be the same with the owner.

Zone 0 An area in which an explosive gas atmosphere is present continuously or for long periods or frequently ( IEV 426) Zone 1 An area in which an explosive gas atmosphere is likely to occur in normal operation occasionally( IEV 426)

Zone 2 Area in which an explosive gas atmosphere is not likely to occur in normal operation but, if it does occur, will persist for a short period only( IEV 426)



Non-hazardous area (on account of explosive gas atmospheres)

An area in which an explosive gas atmosphere is not expected to be present in such as quantities to require special precautions for the construction, installation and use of equipment

6 References Documents Directive 94/9/EC transposed by HG 752/2004, modified Directive 99/92/EC, transposed by HG 1058/2006 Normative NEx 01-06 ATEX Guideline 3rd Edition July 2009 EN 1127-1 Explosive atmospheres - Explosion prevention and protection - Part 1: Basic

concepts and methodology Series standards SR EN 60079 Explosive atmospheres Series standards SR EN 13463 Non-electrical equipment for use in potentially explosive

atmospheres Series standards ISO/IEC 80079 Explosive atmospheres. Non-electrical equipment for

use in potentially explosive atmospheres International Electrotechnical Vocabulary. Part 426 Electrical apparatus for explosive

atmospheres (IEV 426) SR HD 60364-6 Low voltage installations. Part 6: Verification EP FA HA 01 ST PETROM Standard for Areas Classification RO-EP-QA-MAN-002-01-R Quality manual of Facility Engineering Department ( in

Romanian version) 7 Obsolete Documents RO-EP-SR-PRO-001-01-R_Ex Certification Procedure (in Romanian version) RO-EP-SR-STD-001-01-E Company Standard for Selection of Ex Equipment RO-EP-SR-STD-001-01-R Company Standard for Selection of Ex Equipment RO-EP-SR-SOW-001-01-R _Scope of Work for ATEX certification of plants ( in Romanian

version) RI EX 9.2006 Procedure for Self-Certification for Three-Phase, Squirrel Cage Induction

Motors in Normal Construction Used In Zone 2 Note: EP HA 10 PR R1 Equipment Hazardous Areas 2007-10-10 procedure remains in force, it will be reviewed

8 Annexes 8.1 Annex 1 Oil and Gas Characteristics in OMV Petrom EP 8.2 Annex 2 Types of Protection for Electric Equipment 8.3 Annex 3 Types of Protection Non-Electrical Equipment 8.4 Annex 4 Content of the EC Declaration of Conformity 8.5 Annex 5 Conformity Assessment Procedure 8.6 Annex 6 Deliverables List



8.1 Annex 1 Oil and Gas Characteristics in OMV Petrom EP

CAS Number Material/ Composition

Equipment Group

Temperature Class

(Auto) Ignition Temperature (C) Formula LEL (%) UEL(%)

74-82-8 Methane* IIA T1 600 CH4 5,0 15,4

74-84-0 Ethan IIA T1 515 CH3CH3 3,0 15,5

74-98-6 Propane IIA T2 450 CH3CH2CH3 2,1 9,6

106-97-8 n-Butane IIA T2 372 CH3(CH2)2CH2 1,5 8,5

109-66-0 n Pentane IIA T3 243 CH3(CH2)3CH3 1,3 7,6

110-54-3 Hexane (n-hexane) IIA T3 225 CH3(CH2)4CH3 1,1 7,5

142-82-5 Heptane (n-heptane) IIA T3 204 C7H16 1,1 6,7

111-65-9 n-Octane IIA T3 206 CH3(CH2)6CH3 1,0 6,5

111-84-2 Nonane IIA T3 205 CH3(CH2)7CH2 0,74 5,6

124-18-5 n-Decane IIA T3 235 C10H22 0,7 5,6

7783-06-4 Hydrogen Sulphide IIB T3 260 H2S 4,0 45,5

8008-20-6 Diesel fuel No. 2)) IIA T3 254 C15 C21 0,6 6,5

8006-61-9 Gasoline (benzine) IIA T3 280 1,4 7,6

Condensate - Asset II - INCERP T2 >300 0,6 6,0

Rich gas- Asset VII INCPDM 537 5,0 15,0

Gasoline - Asset VII >250 0,6 6,0 Note*: Content< 25% (V/V) of Hydrogen (see EN 60079-20-1)


PE-D-HA-PRO-001-01-E Valid from: 31.03.2012

ATEX Procedure for Projects Page 18 of 22 Edition: 01

8.2 Annex 2 Types of Protection for Electric Equipment

EPL ATEX Category Type of protection Code According to:

Protection by Intrinsically safe ia EN 60079-11

Protection by Encapsulation ma EN 60079-18

Two independent types of protection, each satisfying the conditions imposed by the Gb level

EN 60079-26 Ga 1G

Protection of equipment and transmission systems using optical radiation

EN 60079-28

Protection by Flameproof enclosures d EN 60079-1

Protection by Increased safety e EN 60079-7

Protection by Intrinsically safe ib EN 60079-11

Protection by Encapsulation m sau mb EN 60079-18

Protection by Oil immersion o EN 60079-6

Protection by Pressurized enclosures p, px or

py EN 60079-2

Protection by Powder filling q EN 60079-5

Fieldbus intrinsically safe concept (FISCO) EN 60079-27

Gb 2G

Protection using optic radiation EN 60079-28

Protection by Intrinsically safe ic EN 60079-11

Protection by Encapsulation mc EN 60079-18

Non-sparking equipment n or nA EN 60079-15

Restricted breathing equipment nR EN 60079-15

Energy limitation equipment nL EN 60079-15

Sparking equipment nC EN 60079-15

Protection by Pressurized enclosures pz EN 60079-2

Fieldbus non-incendive concept (FNICO) EN 60079-27

'Gc' 3G

Protection by using optical radiation EN 60079-28




8.3 Annex 3 Types of Protection Non-Electrical Equipment

EPL ATEX Category Type of protection Code According to:

Constructional safety "c" EN 13463-5

Control of ignition source "b" EN 13463-6 Ga

1G

Liquid immersion "k" EN 13463-8

Flameproof "d" EN 13463-3


Control of ignition source "b" EN 13463-6

Pressurization "p" EN 13463-7

Gb

2G


Flow restricting enclosure "fr" EN 13463-2

Flameproof "d" EN 13463-3


Control of ignition source "b" EN 13463-6

Pressurization "p" EN 13463-7

Gc

3G





8.4 Annex 4 Content of EC declaration The EC declaration of conformity must contain the following elements [Directive 94/9/EC, Annex X, B]: the name or identification mark and the address of the manufacturer or his authorized

representative established within the Community a description of the equipment, protective system, or device referred to in Article 1 .(2) of

directive all relevant provisions fulfilled by the equipment, protective system, or device referred to

in Article 1. (2) of directive where appropriate, the name, identification number and address of the notified body and

the number of the EC-type-examination certificate where appropriate, reference to the harmonized standards where appropriate, the standards and technical specifications which have been used where appropriate, references to other Community Directives which have been applied identification of the signatory who has been empowered to enter into commitments on

behalf of the manufacturer or his authorized representative established within the Community.

The manufacturer or his authorized representative must keep a copy of the declaration of conformity for a period of at least 10 years from the date of manufacture the last equipment. If in case when neither the manufacturer nor his authorized representative not domiciled or have registered in Romania or in an EU Member State, obligation to keep available the technical documentation shall be the responsibility of the person who places the equipment or protective system on the market.




8.5 Annex 5 Conformity Assessment Procedure

(*) and their components and devices, if separately assessed

Equipment of Groups I and II Categories M1 and 1* and

Autonomous Protective Systems

Equipment of group II Category 3*

Equipment of Groups I and II Categories M2 and 2*

Internal combustion engine or electrical

equipment

Internal control of production Annex VIII

EC type Examination Annex III

YES NO

and

Production QA

Annex IVor

Product verification Annex V

EC type Examination

Annex III

Internal control of production

Annex VIII

and

and

Conformity to type

Annex VIor Product QA Annex VII

Communicate a technical

documentation to a Notified Body

Equipment of Groups I and II and Autonomous Protective

Systems

Unit verification Annex IX

OR




8.6 Annex 6 Deliverables List

Project Phase Document Maturity Approval

Select Evidence of personnel competency Final DA2

Select Specification for hazardous areas classification - Part I List of flammable materials and their characteristics Final

DA2

Define Explosion risk assessment Optionally DA2 Define Hazardous Areas Drawing Baseline DA2

Define Equipment Ex specifications Preliminary DA2

Execute Evidence of personnel competency Final DA3

Execute Specification for hazardous areas classification - Part II List of sources of release Final

DA3

Execute Hazardous Areas Drawings Final DA2

Execute Equipment Ex specifications Final* DA3

Execute Materials characteristics, including electrical resistivity Final* DA3

Execute Ex certificate of conformity Final DA3 Execute Declaration of conformity EC Final DA3

Execute Equipment manufacturer's Declaration which have not own source of ignition and are considered outside the scope of Directive 94/9/EC

Final DA3

Execute Documents for electrical equipment with conditions of use, e.g. for equipment with certificate numbers which have the suffix _X

Final DA3

Execute Descriptive Declaration of the intrinsically safety system Final* DA3

Execute Risks assessment for assemblies, issued by the manufacturer, as defined in ATEX Guide Edition 3-a/2009. Final

DA3

Execute Details of any relevant calculation, e.g. for purging rates, for instruments or analyser houses

Final DA3

Execute Plans showing and details of type of wiring system Final DA3

Execute Record of selection criteria for cables entry system, for compliance with the requirements for particular types of protection

Final* DA3

Execute Drawings and schedules relating to circuits identification Final DA3 Execute Instructions for initial inspection and Installation Final DA3

Execute List of equipment and their characteristics Final DA3 Execute Report regarding initial inspection Final DA3

Execute Information for Maintenance and repairs Final DA3 Execute Explosion Protection Document Final DA3

Execute Attestation EX, as a requirement of normative NEX 01/06 Final Note* Some information are not required as separate document

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