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ISO 80079-37:2016

(Main)

Explosive atmospheres - Part 37: Non-electrical equipment for explosive atmospheres - Non electrical type of protection constructional safety "c", control of ignition source "b", liquid immersion "k"

Explosive atmospheres - Part 37: Non-electrical equipment for explosive atmospheres - Non electrical type of protection constructional safety "c", control of ignition source "b", liquid immersion "k"

ISO 80079-37:2016 specifies the requirements for the design and construction of non-electrical equipment, intended for use in explosive atmospheres, protected by the types of protection constructional safety "c", control of ignition source "b" and liquid immersion "k". This part of ISO/IEC 80079 supplements and modifies the requirements in ISO 80079-36. Where a requirement of this standard conflicts with the requirement of ISO 80079-36 the requirement of this standard takes precedence. Types of protection "c", "k" and "b" are not applicable for Group I, EPL Ma without additional protective precautions. The types of ignition protection described in the standard can be used either on their own or in combination with each other to meet the requirements for equipment of Group I, Group II, and Group III depending on the ignition hazard assessment in ISO 80079-36. Keywords: constructional safety "c", control of ignition source "b" and liquid immersion "k"

Atmosphères explosives - Partie 37: Appareils non électriques destinés à être utilisés en atmosphères explosives - Mode de protection non électrique par sécurité de construction "c", par contrôle de la source d'inflammation "b", par immersion dans un liquide "k"

L'ISO 80079-37:2016 spécifie les exigences relatives à la conception et à la construction d'un appareil non électrique, destiné à être utilisé dans les atmosphères explosives et protégés par les modes de protection par sécurité de construction "c", par contrôle de la source d'inflammation "b", par immersion dans un liquide "k". La présente partie de l'ISO/IEC 80079 complète et modifie les exigences de l'ISO 80079-36. Lorsqu'une exigence de cette norme s'oppose à une exigence de l'IEC 80079-36, l'exigence de cette norme prime. Les types de protections "c", "k" et "b" ne s'appliquent pas pour le Groupe I, EPL Ma sans l'ajout d'autres précautions de protection. Les modes de protection contre l'inflammation décrits dans la norme peuvent être utilisés indépendamment ou en combinaison les uns avec les autres pour satisfaire aux exigences relatives aux appareils du Groupe I, du Groupe II et du Groupe III, en fonction de l'évaluation du danger d'inflammation dans l'ISO 80079-36. Mots clés: sécurité de construction "c", par contrôle de la source d'inflammation "b", par immersion dans un liquide "k"

General Information

Status
Published
Publication Date
25-Feb-2016
ICS
01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
13.230 - Explosion protection
29.260.20 - Electrical apparatus for explosive atmospheres
Technical Committee
SC 31M - Non-electrical equipment and protective systems for explosive atmospheres
Drafting Committee
PT 80079-37 - TC 31/SC 31M/PT 80079-37
Current Stage
PPUB - Publication issued
Start Date
29-Feb-2016
Completion Date
23-Feb-2016
Ref Project

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ISO 80079-37:2016 - Explosive atmospheres - Part 37: Non-electrical equipment for explosive atmospheres - Non electrical type of protection constructional safety "c", control of ignition source "b", liquid immersion "k"ISO 80079-37:2016 - Explosive atmospheres - Part 37: Non-electrical equipment for explosive atmospheres - Non electrical type of protection constructional safety "c", control of ignition source "b", liquid immersion "k"
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ISO 80079-37:2016 - Explosive atmospheres - Part 37: Non-electrical equipment for explosive atmospheres - Non electrical type of protection constructional safety "c", control of ignition source "b", liquid immersion "k"
English and French language
103 pages
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ISO 80079-37
Edition 1.0 2016-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Explosive atmospheres –
Part 37: Non-electrical equipment for explosive atmospheres – Non electrical
type of protection constructional safety “c”, control of ignition source “b”, liquid
immersion “k”
Atmosphères explosives –
Partie 37: Appareils non électriques destinés à être utilisés en atmosphères
explosives – Mode de protection non électrique par sécurité de construction "c",
par contrôle de la source d'inflammation "b", par immersion dans un liquide "k"

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ISO 80079-37
Edition 1.0 2016-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Explosive atmospheres –
Part 37: Non-electrical equipment for explosive atmospheres – Non electrical

type of protection constructional safety “c”, control of ignition source “b”, liquid

immersion “k”
Atmosphères explosives –
Partie 37: Appareils non électriques destinés à être utilisés en atmosphères

explosives – Mode de protection non électrique par sécurité de construction "c",

par contrôle de la source d'inflammation "b", par immersion dans un liquide "k"

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.230; 29.260.20 ISBN 978-2-8322-3181-4

– 2 – ISO 80079-37:2016 © ISO 2016
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references. 7
3 Terms and definitions . 8
4 Determination of suitability . 9
5 Requirements for equipment with Type of Protection constructional safety “c” . 9
5.1 General requirements . 9
5.2 Ingress protection . 10
5.2.1 General . 10
5.2.2 Ingress protection in special cases . 10
5.3 Seals for moving parts . 10
5.3.1 Unlubricated gaskets, seals, sleeves, bellows and diaphragms . 10
5.3.2 Stuffing box seals (packed glands) . 11
5.3.3 Lubricated seals . 11
5.4 Equipment lubricants, coolants and fluids . 11
5.5 Vibration . 11
5.6 Requirements for moving parts . 11
5.6.1 General . 11
5.6.2 Clearance . 12
5.6.3 Lubrication . 12
5.7 Requirements for bearings . 12
5.7.1 General . 12
5.7.2 Lubrication . 13
5.7.3 Chemical compatibility . 13
5.8 Requirements for power transmission systems . 14
5.8.1 Gear drives . 14
5.8.2 Belt drives . 14
5.8.3 Chain drives. 15
5.8.4 Other drives . 15
5.8.5 Hydrostatic, hydrokinetic and pneumatic equipment . 15
5.9 Requirements for clutches and variable speed couplings . 16
5.9.1 General . 16
5.9.2 Slipping . 16
5.9.3 Friction . 17
5.10 Flexible couplings . 17
5.11 Requirements for brakes and braking systems . 17
5.11.1 Brakes used only for stopping in emergency . 17
5.11.2 Service brakes (including friction brakes and fluid based retarders) . 18
5.11.3 Parking brakes . 18
5.12 Requirements for springs and absorbing elements . 18
5.13 Requirements for conveyor belts . 18
5.13.1 Electrostatic requirements . 18
5.13.2 Materials . 18
5.13.3 Belt tension . 18
5.13.4 Alignment . 19
5.13.5 Earthing and bonding . 19

6 Requirements for equipment with Type of Protection control of ignition source “b” . 19
6.1 General . 19
6.2 Determination of the control parameters . 19
6.2.1 General . 19
6.2.2 Determination of the safety critical values . 20
6.3 Ignition prevention system design and settings . 20
6.3.1 Determining the performance requirements or operating characteristics . 20
6.3.2 Instructions . 20
6.3.3 System lockout . 20
6.3.4 Operator intervention . 21
6.4 Ignition protection of sensors and actuators . 21
6.5 Ignition protection types . 21
6.5.1 Ignition protection type b1 . 21
6.5.2 Ignition protection type b2 . 21
6.5.3 Application of ignition protection types . 22
6.5.4 Requirements for ignition protection types . 23
6.5.5 Programmable electronic devices . 23
7 Requirements for equipment with Type of Protection liquid immersion “k”. 23
7.1 Determination of the maximum / minimum criteria . 23
7.2 Protective liquid . 24
7.3 Equipment construction . 24
7.3.1 General . 24
7.3.2 Working angle .
...

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