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Ex-news: Actual Ex-standards

In every newsletter you will find an actual overview of standards relating to explosion safety. In this issue the updates of the EN 60079 will be published.

Click here for the actual status of the EN 60079.

The development of new standards is also going on.

However, it will take several years before standards can be published as International Standards or Technical Specifications. First, the new standards are announced as ‘NP’. NP stands for New work Proposal.

31/952/NP (NP = New work Proposal)

31/952/NP (NP = New work Proposal)

Future IEC 60079-32-1 TS Ed. 1.0: Explosive atmospheres – Part 32-1: Electrostatic hazards, Guidance.

 

This IEC Technical Specification is based on CENELEC TR 50404:2003 Code of practice for the avoidance of hazards due to static electricity and a number of other documents.

 

Scope of this standard:

This part of IEC 60079 gives guidance about the equipment, product and process properties necessary to avoid ignition and electrostatic shock hazards arising from static electricity as well as the operational requirements needed to ensure safe use of the equipment, product or process. It can be used in a risk assessment of electrostatic hazards or for the preparation of product family or dedicated product standards for electrical or non-electrical machines or equipment.

The hazards associated with static electricity in industrial processes and environments that most commonly give problems are considered. These processes include the handling of solids, liquids, powders, gases, sprays and explosives. In each case, the source and nature of the electrostatic hazard are indentified and specific recommendations are give for dealing with them.

The purpose of this document is to provide standard recommendations for the control of static electricity, such as earthing of conductors, reducing of charging and restriction of chargeable areas of insulators. In some cases static electricity plays an integral part of a process, e.g. electrostatic coating, but often it is an unwelcome side effect and it is with the latter that this guidance is concerned. If the standard recommendations given in this document are fulfilled it can be expected that the risk of hazardous electrostatic discharges in an explosive atmosphere is at an acceptable low level.

 

Target date for this IS/TS is 2014.

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