Refrigerating systems and heat pumps - Safety and environmental requirements - Positive displacement refrigerant compressors

This European Standard applies to positive displacement refrigerant compressors for stationary and mobile refrigerating systems and heat pumps defined in 3.1, hereafter called compressors.
It applies for compressors used in commercial and industrial appliances and with electrical energy supply including integral motors, up to 1 000 VAC and 1 500 VDC.
It applies to open drive, semi hermetic and hermetic motor compressors, which contain a positive compression function.
This standard is not applicable to:
-   compressors used in household appliance for which EN 60335 2 34 applies;
-   compressors using water or air as refrigerant.
This European Standard does not deal with requirements for vibration and noise.
NOTE 1   Compressors for automotive comfort air conditioning systems can be developed according e.g. SAE J 639.
NOTE 2   Noise emission depends on the complete installation of the built-in compressors and the corresponding operating conditions.
For semi-hermetic and open drive compressors which include moving parts and for which the external envelope is primarily designed for mechanical loads, thermal loads (to limit the possible deformation due to temperature), stiffness of the structure (external mechanical loads and weight of the equipment), taking into account established safe industrial practice, it is considered that pressure is not a significant design factor.
Attached parts covering other functions e.g. oil separators, oil coolers, suction accumulators should comply to EN 14276 1 or EN 13445 6 (cast iron) or EN 13445 8 (aluminium) or showing compliance to the relevant European requirements. This applies also to shells for hermetic compressors either welded or with any kind of permanent joint.
Requirements for compressors used in explosive atmospheres are not covered by this standard.
NOTE 3   For further guidance see EN 13463-1.
This European Standard deals with all significant hazards, hazardous situations and events relevant to compressors, when they are used as intended and under conditions for misuse which are reasonably foreseeable by the manufacturer (see Clause 4).
This European Standard specifies safety requirements for the design, construction, manufacture and testing, documentation and marking of compressors, including integral accessories, e.g. shut-off valve, if necessary.
The requirements in this standard take account of the intended use, as defined in EN ISO 12100:2010, 3.12.
This standard relates to the compressor itself which is to be incorporated in a refrigerating system.
This standard is not applicable to compressors as defined in the scope which are manufactured before the date of publication as EN.

Kälteanlagen und Wärmepumpen - Sicherheitstechnische und umweltrelevante Anforderungen - Verdrängerverdichter für Kältemittel

Diese Europäische Norm gilt für Verdrängerverdichter für Kältemittel nach der Definition in 3.1, die für ortsfeste und ortsveränderliche Kälteanlagen und Wärmepumpen verwendet und im Folgenden als Verdichter bezeichnet werden.
Sie gilt für Verdichter, die in gewerblichen und industriellen Anlagen eingesetzt werden und zu deren Energieversorgung Integralmotoren mit bis zu 1 000 V Wechselstrom oder 1 500 V Gleichstrom verwendet werden.
Sie gilt für Verdichter mit offenem Antrieb sowie für halbhermetische und hermetische Motorverdichter mit positiver Verdrängungsfunktion.
Diese Norm gilt nicht für:
-   Verdichter, die für Geräte für den Hausgebrauch vorgesehen sind, für die EN 60335 23 4 gilt;
-   Verdichter, bei denen Wasser oder Luft als Kältemittel dient.
Diese Europäische Norm enthält keine Anforderungen im Hinblick auf Schwingungen und Geräuschemission.
ANMERKUNG 1   Verdichter für die Fahrzeugklimatisierung können z. B. nach SAE J 639 entwickelt werden.
ANMERKUNG 2   Die Geräuschemission ist von der Gesamtanlage des eingebauten Verdichters und den entsprechenden Betriebsbedingungen abhängig.
Bei Verdichtern mit halbhermetischem oder offenem Antrieb, die bewegliche Teile enthalten und bei denen die äußere Hülle unter Berücksichtigung bewährter und sicherer industrieller Verfahrensweisen vor allem im Hinblick auf die Aufnahme mechanischer Lasten, den Widerstand gegen thermische Beanspruchungen (zur Begrenzung der möglichen Verformung durch Temperatureinwirkung) und auf Steifigkeit der Konstruktion (äußere mechanische Lasten und Gewicht der Ausrüstung) ausgelegt ist, wird davon ausgegangen, dass der Druck keinen wesentlichen Faktor für die Auslegung darstellt.
Anbauteile mit anderen Funktionen, wie z. B. Ölabscheider, Ölkühler und Ausgleichsbehälter, sollten EN 14276-1 oder EN 13445-6 (Gusseisen) bzw. EN 13445-8 (Aluminium) entsprechen, oder es muss nachgewiesen werden, dass sie die einschlägigen europäischen Anforderungen erfüllen. Dies gilt auch für die Gehäuse von hermetischen Verdichtern, deren Verbindungen entweder geschweißt oder auf andere Art dauerhaft ausgeführt sind.
Diese Norm enthält keine Anforderungen an Verdichter für den Einsatz in explosionsgefährdeten Atmosphären.
ANMERKUNG 3   Weitere Hinweise hierzu sind EN 13463-1 zu entnehmen.
Diese Europäische Norm behandelt alle signifikanten Gefährdungen sowie alle Gefährdungssituationen und -ereignisse, die beim bestimmungsgemäßen Einsatz von Verdichtern sowie beim falschen Einsatz auftreten können, soweit dieser für den Hersteller mit vertretbarem Aufwand vorhersehbar ist (siehe Abschnitt 4).
Diese Europäische Norm legt sicherheitstechnische Anforderungen für die Auslegung, Konstruktion und Herstellung sowie für die Prüfung, Dokumentation und Kennzeichnung von Verdichtern fest, die gegebenenfalls auch für ihre fest eingebauten Zubehörteile, z. B. das Absperrventil, gelten.
Die Anforderungen dieser Norm berücksichtigen die bestimmungsgemäße Verwendung nach  EN ISO 12100:2010, 3.12.
Diese Norm gilt für den in eine Kälteanlage einzubauenden Verdichter selbst.
Diese Norm ist nicht auf Verdichter anwendbar, die den Angaben in diesem Anwendungsbereich entsprechen, aber vor der Veröffentlichung dieses Dokuments als Europäische Norm hergestellt wurden.

Systèmes de réfrigération et pompes à chaleur - Exigences de sécurité et d'environnement - Compresseurs volumétriques pour fluides frigorigènes

La présente Norme européenne s’applique aux compresseurs volumétriques pour fluides frigorigènes pour les systèmes de réfrigération mobiles et fixes et les pompes à chaleur définis en 3.1, ci-après désignés par compresseurs.
Elle s’applique aux compresseurs utilisés dans les applications commerciales et industrielles ainsi qu’aux compresseurs ayant une alimentation électrique y compris moteurs intégrés, jusqu’à 1 000 VAC et 1 500 VDC.
Elle s’applique aux motocompresseurs ouverts, semi-hermétiques et hermétiques ayant une fonction de compression volumétrique.
La présente Norme ne s’applique pas :
-   aux compresseurs utilisés dans les appareils domestiques pour lesquels l’EN 60335-2-34 s’applique ;
-   aux compresseurs utilisant l’eau ou l’air comme fluide frigorigène.
La présente Norme européenne ne traite pas les exigences relatives aux vibrations et au bruit.
NOTE 1   Les compresseurs pour systèmes de conditionnement d’air de confort automobile peuvent selon par exemple  être développés selon SAE J 639.
NOTE 2   L’émission acoustique dépend de l’installation complète des compresseurs intégrés et des conditions d’utilisation correspondantes.
Pour les compresseurs semi-hermétiques et ouverts incluant des parties mobiles et pour lesquels l’enveloppe externe est principalement conçue pour les charges mécaniques, thermiques (pour limiter la possible déformation due à la température), la rigidité de la structure (charges mécaniques externes et poids de l’équipement), prenant en compte la pratique industrielle de sécurité établie, la pression n’est pas considérée comme un critère de conception significatif.
Il convient que les pièces jointes couvrant d’autres fonctions, par exemple un séparateur d’huile, un refroidisseur d’huile, une bouteille anti coup de liquide, soient conformes à l’EN 14276-1, à l’EN 13445-6 (fonte) ou à l’EN 13445-8 (aluminium) ou conformes aux exigences européennes appropriées. Cela s’applique également aux enveloppes des compresseurs hermétiques, qu’elles soient soudées ou qu’elles comportent tout genre de joint permanent.
Les exigences relatives aux compresseurs utilisées dans des atmosphères explosives ne sont pas couvertes par la présente norme.
NOTE 3   Pour plus de conseils, voir l’EN 13463-1.
La présente Norme européenne traite des phénomènes dangereux significatifs, des situations et des événements dangereux appropriés aux compresseurs, lorsqu’ils sont utilisés comme prévu et dans les conditions de mauvaise utilisation qui sont raisonnablement prévisibles par le fabricant (voir Article 4).
La présente Norme européenne spécifie des exigences de sécurité pour la conception, la construction, la fabrication et l’essai, la documentation et le marquage des compresseurs, y compris les accessoires intégrés, tels que les robinets d’arrêt, si nécessaire.
Les exigences de la présente norme prennent en compte l’utilisation envisagée, telle que définie dans l’EN ISO 12100-1:2010, 3.12.
La présente norme porte sur le compresseur lui-même, destiné à être intégré dans un système de réfrigération.
La présente norme ne s’applique pas aux compresseurs comme définis dans le domaine d’application qui sont fabriqués avant la date de publication comme EN.

Hladilni sistemi in toplotne črpalke - Varnostnotehnične in okoljevarstvene zahteve - Kompresorji za hladilne tekočine z iztiskavanjem

General Information

Status
Not Published
Public Enquiry End Date
23-Nov-2016
Technical Committee
Current Stage
4020 - Public enquire (PE) (Adopted Project)
Start Date
09-Sep-2016
Due Date
27-Jan-2017
Completion Date
01-Dec-2016

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SLOVENSKI STANDARD
oSIST prEN 12693:2016
01-november-2016

+ODGLOQLVLVWHPLLQWRSORWQHþUSDONH9DUQRVWQRWHKQLþQHLQRNROMHYDUVWYHQH]DKWHYH

.RPSUHVRUML]DKODGLOQHWHNRþLQH]L]WLVNDYDQMHP
Refrigerating systems and heat pumps - Safety and environmental requirements -
Positive displacement refrigerant compressors
Kälteanlagen und Wärmepumpen - Sicherheitstechnische und umweltrelevante
Anforderungen - Verdrängerverdichter für Kältemittel
Systèmes de réfrigération et pompes à chaleur - Exigences de sécurité et
d'environnement - Compresseurs volumétriques pour fluides frigorigènes
Ta slovenski standard je istoveten z: prEN 12693
ICS:
23.140 .RPSUHVRUMLLQSQHYPDWLþQL Compressors and pneumatic
VWURML machines
27.080 7RSORWQHþUSDONH Heat pumps
27.200 Hladilna tehnologija Refrigerating technology
oSIST prEN 12693:2016 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 12693:2016
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oSIST prEN 12693:2016
DRAFT
EUROPEAN STANDARD
prEN 12693
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2016
ICS 23.140; 27.080 Will supersede EN 12693:2008
English Version
Refrigerating systems and heat pumps - Safety and
environmental requirements - Positive displacement
refrigerant compressors
Systèmes de réfrigération et pompes à chaleur - Kälteanlagen und Wärmepumpen -

Exigences de sécurité et d'environnement - Sicherheitstechnische und umweltrelevante

Compresseurs volumétriques pour fluides frigorigènes Anforderungen - Verdrängerverdichter für Kältemittel

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

CEN/TC 182.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations

which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other

language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC

Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are

aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without

notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12693:2016 E

worldwide for CEN national Members.
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oSIST prEN 12693:2016
prEN 12693:2016 (E)
Contents Page

European foreword ....................................................................................................................................................... 5

Introduction .................................................................................................................................................................... 6

1 Scope .................................................................................................................................................................... 7

2 Normative references .................................................................................................................................... 8

3 Terms, definitions and symbols ................................................................................................................. 9

3.1 Terms and definitions ................................................................................................................................... 9

3.2 Symbols ............................................................................................................................................................ 10

4 List of significant hazards ......................................................................................................................... 13

5 Safety requirements and/or protective measures .......................................................................... 15

5.1 General ............................................................................................................................................................. 15

5.2 Protection of moving parts ....................................................................................................................... 15

5.3 Safety to prevent loss of stability ........................................................................................................... 15

5.4 Safety during handling ............................................................................................................................... 15

5.5 Safety to prevent rupture or bursting .................................................................................................. 15

5.5.1 General ............................................................................................................................................................. 15

5.5.2 Pressure requirements .............................................................................................................................. 15

5.5.3 Materials .......................................................................................................................................................... 16

5.5.4 Sight glasses ................................................................................................................................................... 16

5.5.5 Application of pressure relief devices .................................................................................................. 16

5.6 Electrical safety ............................................................................................................................................. 17

5.6.1 General ............................................................................................................................................................. 17

5.6.2 Classification .................................................................................................................................................. 17

5.6.3 Determination of current ratings ........................................................................................................... 17

5.6.4 Protection against access to live parts ................................................................................................. 17

5.6.5 Connecting devices ...................................................................................................................................... 18

5.6.6 Provisions for earthing .............................................................................................................................. 18

5.6.7 Internal wiring .............................................................................................................................................. 18

5.6.8 High potential test........................................................................................................................................ 18

5.6.9 Insulating materials .................................................................................................................................... 18

5.6.10 Motor compressors protection devices ............................................................................................... 18

5.7 Measures to reduce emissions of substances .................................................................................... 18

6 Verification of safety requirements and/or protective measures ............................................. 19

6.1 General ............................................................................................................................................................. 19

6.2 Type test .......................................................................................................................................................... 19

6.2.1 General ............................................................................................................................................................. 19

6.2.2 Strength test ................................................................................................................................................... 19

6.2.3 Pressure relief device ................................................................................................................................. 20

6.2.4 Verification of electrical safety ............................................................................................................... 20

6.2.5 Lifting points .................................................................................................................................................. 21

6.3 Individual test ............................................................................................................................................... 21

6.3.1 General ............................................................................................................................................................. 21

6.3.2 Strength test ................................................................................................................................................... 21

6.3.3 Test for tightness .......................................................................................................................................... 22

6.3.4 Verification of electrical safety ............................................................................................................... 22

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prEN 12693:2016 (E)

7 Marking, graphical symbols, written warnings ................................................................................. 23

7.1 General ............................................................................................................................................................. 23

7.2 Marking ............................................................................................................................................................ 23

7.3 Graphical symbols, written warnings and information .................................................................. 24

7.3.1 Lifting points .................................................................................................................................................. 24

7.3.2 Pressurizing the housing ........................................................................................................................... 24

7.3.3 Lubricant charge ........................................................................................................................................... 25

8 Documentation and information for the user .................................................................................... 25

8.1 General ............................................................................................................................................................. 25

8.2 Instruction handbook ................................................................................................................................. 25

Annex A (informative) Basic design criteria for refrigerant compressors ........................................... 26

A.1 General ............................................................................................................................................................. 26

A.2 Compressor capability against technical performance .................................................................. 26

A.2.1 Design, dimensioning and manufacturing rules ............................................................................... 26

A.2.2 Choice of material ......................................................................................................................................... 26

A.3 Compressor capability against user requirements .......................................................................... 26

A.3.1 Design, dimensioning and manufacturing rules ............................................................................... 26

A.3.2 Choice of material ......................................................................................................................................... 27

Annex B (normative) Procedure for the design of a refrigerant compressor ...................................... 28

B.1 Guideline for the application of this annex ......................................................................................... 28

B.1.1 General ............................................................................................................................................................. 28

B.1.2 Method of design and field of application (DBF) ............................................................................... 28

B.1.3 Strength values for the design calculation and proof of material properties ........................ 28

B.1.3.1 Strength values for the design calculation .......................................................................................... 28

B.1.3.2 Material properties ...................................................................................................................................... 28

B.1.3.3 Design calculation of screws and fasteners ........................................................................................ 28

B.1.4 Determination of the maximum allowable pressure by a burst test ......................................... 29

B.1.5 Documentation .............................................................................................................................................. 30

Annex C (normative) Materials ............................................................................................................................. 31

C.1 General ............................................................................................................................................................. 31

C.1.1 Using metallic materials ............................................................................................................................ 31

C.1.2 Materials for compressor casings and casing parts ......................................................................... 31

C.1.3 Using non-metallic materials ................................................................................................................... 31

C.1.4 Requirements for welders and welding procedures ....................................................................... 31

C.1.5 Material certificates ..................................................................................................................................... 32

Annex D (normative) Determination of the allowable pressure at the maximum operating

temperature ................................................................................................................................................... 33

D.1 Guideline for the application of this annex ......................................................................................... 33

D.1.1 General ............................................................................................................................................................. 33

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prEN 12693:2016 (E)

D.1.2 Choice of materials and proof of material properties .................................................................... 33

D.1.3 Documentation .............................................................................................................................................. 33

D.2 Determination of the maximum allowable pressure at higher temperatures ...................... 33

Annex E (normative) Determination of the allowable pressure at minimum operating

temperature (requirements to avoid brittle fracture) ................................................................... 34

E.1 Guideline for the application of the methods and the choice of materials ............................. 34

E.1.1 General ............................................................................................................................................................. 34

E.1.2 Requirements of materials and proof of material properties ..................................................... 34

E.1.3 Documentation .............................................................................................................................................. 35

E.2 Determination of the maximum allowable pressure at the minimum operating

temperature ................................................................................................................................................... 35

E.3 Determination of the maximum allowable pressure at the minimum operating

temperature on the basis of fracture mechanics theory for steel and cast iron ................... 35

E.4 Determination of the maximum allowable pressure at the minimum operating
temperature on the basis of an empirical method (min-t -Method; procedure

according to the individual temperature load case) for steel and cast iron ........................... 36

E.4.1 General ............................................................................................................................................................. 36

E.4.2 Temperature load cases ............................................................................................................................ 36

E.4.3 Lowest application temperatures for the load cases min t , min t and min t ........ 36

0 100 0 75 0 25

E.4.3.1 Load case min t ....................................................................................................................................... 36

0 100

E.4.3.2 Load cases min t and min t ............................................................................................................. 37

0 75 0 25

E.4.4 Welded joints for material groups 1.1 and 1.2 .................................................................................. 37

E.4.4.1 Conditions for welded joints .................................................................................................................... 37

E.4.4.2 Heat treatment after welding .................................................................................................................. 38

E.4.5 Determination of the safety factor ......................................................................................................... 38

E.5 Determination of fasteners below – 10 °C ........................................................................................... 38

Annex F (informative) Compilation of material characteristics of often used materials ............... 40

Annex ZA (informative) Relationship between this European Standard and the essential

requirements of EU-Directive 2006/42/EC aimed to be covered .............................................. 61

Bibliography ................................................................................................................................................................. 62

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oSIST prEN 12693:2016
prEN 12693:2016 (E)
European foreword

This document (prEN 12693:2016) has been prepared by Technical Committee CEN/TC 182

“Refrigerating systems, safety and environmental requirements”, the secretariat of which is held by DIN.

This document is currently submitted to the CEN Enquiry.
This document will supersede EN 12693:2008.

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association, and supports essential requirements of EU Directive 2006/42/EC.

For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this

document.
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oSIST prEN 12693:2016
prEN 12693:2016 (E)
Introduction
This standard is a type C standard as stated in EN ISO 12100.

The machinery concerned and the extent to which hazards, hazardous situations and hazardous events

are covered are indicated in the scope of this standard.

When provisions of this type C standard are different from those which are stated in type A or B

standards, the provisions of this type C standard take precedence over the provisions of the other

standards, for machines that have been designed and built according to the provisions of this type C

standard.
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oSIST prEN 12693:2016
prEN 12693:2016 (E)
1 Scope

This European Standard applies to positive displacement refrigerant compressors for stationary and

mobile refrigerating systems and heat pumps defined in 3.1, hereafter called compressors.

It applies for compressors used in commercial and industrial appliances and with electrical energy

supply including integral motors, up to 1 000 VAC and 1 500 VDC.

It applies to open drive, semi hermetic and hermetic motor compressors, which contain a positive

compression function.
This standard is not applicable to:
— compressors used in household appliance for which EN 60335-2-34 applies;
— compressors using water or air as refrigerant.
This European Standard does not deal with requirements for vibration and noise.

NOTE 1 Compressors for automotive comfort air conditioning systems can be developed according e.g. SAE J

639.

NOTE 2 Noise emission depends on the complete installation of the built-in compressors and the

corresponding operating conditions.

For semi-hermetic and open drive compressors which include moving parts and for which the external

envelope is primarily designed for mechanical loads, thermal loads (to limit the possible deformation

due to temperature), stiffness of the structure (external mechanical loads and weight of the equipment),

taking into account established safe industrial practice, it is considered that pressure is not a significant

design factor.

Attached parts covering other functions e.g. oil separators, oil coolers, suction accumulators should

comply to EN 14276-1 or EN 13445-6 (cast iron) or EN 13445-8 (aluminium) or showing compliance to

the relevant European requirements. This applies also to shells for hermetic compressors either welded

or with any kind of permanent joint.

Requirements for compressors used in explosive atmospheres are not covered by this standard.

NOTE 3 For further guidance see EN 13463–1.

This European Standard deals with all significant hazards, hazardous situations and events relevant to

compressors, when they are used as intended and under conditions for misuse which are reasonably

foreseeable by the manufacturer (see Clause 4).

This European Standard specifies safety requirements for the design, construction, manufacture and

testing, documentation and marking of compressors, including integral accessories, e.g. shut-off valve, if

necessary.

The requirements in this standard take account of the intended use, as defined in EN ISO 12100:2010,

3.12.

This standard relates to the compressor itself which is to be incorporated in a refrigerating system.

This standard is not applicable to compressors as defined in the scope which are manufactured before

the date of publication as EN.
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oSIST prEN 12693:2016
prEN 12693:2016 (E)
2 Normative references

The following referenced documents are indispensable for the application of this document. For dated

references, only the edition cited applies. For undated references, the latest edition of the referenced

document (including any amendments) applies.

EN 378-1:2008+A2:2012, Refrigerating systems and heat pumps — Safety and environmental

requirements — Part 1: Basic requirements, definitions, classification and selection criteria

EN 378-2:2008+A2:2012, Refrigerating systems and heat pumps — Safety and environmental

requirements — Part 2: Design, construction, testing, marking and documentation

EN 378-3, Refrigerating systems and heat pumps — Safety and environmental requirements — Part 3:

Installation site and personal protection

EN 378-4, Refrigerating systems and heat pumps — Safety and environmental requirements — Part 4:

Operation, maintenance, repair and recovery

EN 837-1, Pressure gauges - Part 1: Bourdon tube pressure gauges - Dimensions, metrology, requirements

and testing

EN 837-3, Pressure gauges - Part 3: Diaphragm and capsule pressure gauges - Dimensions, metrology,

requirements and testing
EN 1515 (all parts), Flanges and their joints — Bolting

EN 1779, Non-destructive testing - Leak testing - Criteria for method and technique selection

EN 10204, Metallic products - Types of inspection documents

EN 12178, Refrigerating systems and heat pumps - Liquid level indicating devices - Requirements, testing

and marking

EN 12516-2, Industrial valves - Shell design strength - Part 2: Calculation method for steel valve shells

EN 13136:2013, Refrigerating systems and heat pumps — Pressure relief devices and their associated

piping — Methods for calculation
EN 13445-2:2014, Unfired pressure vessels — Part 2: Materials
EN 13445-3, Unfired pressure vessels - Part 3: Design
EN 20898 (all parts), Mechanical properties of fasteners
EN 60034-1:2010, Rotating electrical machines - Part 1: Rating and performance

EN 60204-1:2006, Safety of machinery - Electrical equipment of machines - Part 1: General requirements

(IEC 60204-1:2005, modified)
EN 60529, Degrees of protection provided by enclosures (IP Code) (IEC 60529)

EN 60999 (all parts), Connecting Devices — Electrical copper conductors — Safety requirements for srew-

type and screwless-type clamping units
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oSIST prEN 12693:2016
prEN 12693:2016 (E)

EN 61010-1, Safety requirements for electrical equipment for measurement, control and laboratory use —

Part 1: General requirements (IEC 61010-1)

EN ISO 148-1, Metallic materials - Charpy pendulum impact test - Part 1: Test method (ISO 148-1)

EN ISO 898 (all parts), Mechanical properties of fasteners made of carbon steel and alloy steel

EN ISO 4126-2, Safety devices for protection against excessive pressure - Part 2: Bursting disc safety

devices (ISO 4126-2)

EN ISO 9606-1, Qualification testing of welders - Fusion welding - Part 1: Steels (ISO 9606-1)

EN ISO 9606-2, Qualification test of welders - Fusion welding - Part 2: Aluminium and aluminium alloys

(ISO 9606-2)

EN ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk

reduction (ISO 12100:2010)

EN ISO 13732-1, Ergonomics of the thermal environment - Methods for the assessment of human

responses to contact with surfaces - Part 1: Hot surfaces (ISO 13732-1)

EN ISO 13857, Safety of machinery - Safety distances to prevent hazard zones being reached by upper and

lower limbs (ISO 13857)

EN ISO 14120, Safety of machinery - Guards - General requirements for the design and construction of

fixed and movable guards (ISO 14120)

EN ISO 15607, Specification and qualification of welding procedures for metallic materials - General rules

(ISO 15607)

EN ISO 15614-1, Specification and qualification of welding procedures for metallic materials - Welding

procedure test - Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys (ISO

15614-1)

EN ISO 15614-2, Specification and qualification of welding procedures for metallic materials - Welding

procedure test - Part 2: Arc welding of aluminium and its alloys (ISO 15614-2)

CEN ISO/TR 15608, Welding — Guidelines for a metallic material grouping system (ISO/TR 15608)

3 Terms, definitions and symbols
3.1 Terms and definitions

For the purposes of this document, the terms and definitions given in EN 378-1:2008+A2:2012,

EN ISO 12100-1:2010 and the following apply.
Note 1 to entry: All pressures are gauge pressures unless otherwise specified.
3.1.1
positive displacement compressor

compressor in which compression is obtained by changing the internal volume of the compression

chamber
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oSIST prEN 12693:2016
prEN 12693:2016 (E)
3.1.2
specified maximum allowable pressure
maximum allowable pressure as stated by the compressor manufacturer
3.1.3
specified maximum allowable standstill pressure
PSs

maximum allowable value for the equalisation pressure in the compressor as stated by

...

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