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About This Item
Full Description
Hand tools and manually operated equipment without energy storage are excluded from the scope of this standard. This standard does not address the safety of static autonomous process equipment when it is not part of equipment referred to in this standard.
NOTE 1 Static autonomous process equipment includes items such as tanks, vessels, fixed pipework and hand operated valves which do not have their own source of energy that could create a potential ignition source during operation.
This standard does not specify requirements for safety, other than those directly related to the risk of ignition which may then lead to an explosion. The standard atmospheric conditions (relating to the explosion characteristics of the atmosphere) under which it may be assumed that equipment can be operated are:
- temperature -20 °C to +60 °C;
- pressure 80 kPa (0,8 bar) to 110 kPa (1,1 bar); and
- air with normal oxygen content, typically 21 % v/v.
NOTE 2 Although the standard atmospheric conditions above give a temperature range for the atmosphere of - 20 °C to +60 °C, the normal ambient temperature range for the equipment is -20 °C to +40 °C, unless otherwise specified and marked. It is considered that -20 °C to +40 °C is appropriate for most equipment and that to manufacture all equipment to be suitable for a standard atmosphere upper ambient temperature of +60 °C would place unnecessary design constraints.
NOTE 3 The requirements of this standard can also be helpful for the design, construction, testing and marking of equipment intended for use in atmospheres outside the validity range stated above. In this case however, the ignition hazard assessment, ignition protection provided, additional testing (if necessary), manufacturer's technical documentation and instructions to the user, clearly demonstrate and indicate the equipment's suitability for the conditions it may encounter. It is also recognized that changes in temperature and pressure can have a significant influence on characteristics of the explosive atmosphere, such as ignitability.
This part of ISO/IEC 80079 specifies the requirements for the design and construction of equipment, intended for explosive atmospheres in conformity with all Equipment Protection Levels (EPLs) of Group I, II and III.
NOTE 4 It is not unusual for equipment designed and constructed in accordance with this standard for a particular EPL to be used in areas requiring an EPL with a higher level of safety by including the application of additional measures. Such measures include for example inerting, suppression, venting or containment or for example by dilution, drainage, monitoring and shut-down. Such measures are outside the scope of this standard.
This standard supplements and modifies the general requirements of IEC 60079-0, as shown in Table 1. Where a requirement of this standard conflicts with a requirement of IEC 60079-0, as far as applicable for non-electrical equipment, the requirement of this standard takes precedence.
Cross References:
IEC 60079-0
IEC 60079-1
IEC 60079-2
IEC 60079-28
IEC 60079-31
ISO 80079-37
ISO/IEC 80079-38
ANSI/UL 746B
2014/34/EU
EN 13463-1:2009
IEC 60079-14
IEC 60079-10-1
IEC 60079-10-2
IEC 60079-20-1
IEC 60079-26
IEC TS 60079-32-1
IEC 60079-32-2
IEC 60812
IEC 61025
IEC 62305
ISO 281
ISO 6507-1
ISO 6507-4
ISO 12100
ISO 16852
EN 13237
EN 1127-1
EN 1755
EN 15198
CLC/TR 50404
All current amendments available at time of purchase are included with the purchase of this document.
Document History
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BS EN ISO 80079-36:2016
viewing
Explosive atmospheres-Non-electrical equipment for explosive atmospheres. Basic method and requirements- Most Recent
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BS EN 13463-1:2009
Non-electrical equipment for use in potentially explosive atmospheres-Basic method and requirements- Historical Version
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BS 07/30160767 DC
BS EN 13463-1. Non-electrical equipment for use in potentially explosive atmospheres. Part 1. Basic method and requirements- Historical Version
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BS EN 13463-1:2001
Non-electrical equipment for potentially explosive atmospheres-Basic method and requirements- Historical Version