Scopo, struttura, modalità en

Scopo struttura e modalita' / IT

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Purpose, structure, modality

The scope of TC 89 is to prepare International Standards, Technical Specifications and Technical Reports in the area of:

  • fire hazard assessment, fire safety engineering and terminology related to electrotechnical products,
  • measurement of fire effluent (e.g smoke opacity, corrosivity, toxic gases and abnormal heat), and reviews of the state of the art of current test methods as related to electrotechnical products.

Recently TC 89 IEC has changed its structure to better fit to the purpose of the TC:

Struttura CT89 IEC.

The last ten years worked very hard on fundamental improvements in TC 89 test methods and guidance. Each test method has been thoroughly re-analyzed and improved where necessary to achieve greater repeatability and reproducibility. This has, in part, been accomplished in cooperation with ISO/TC 92 and ISO/TC 61 and the CTL (Committee of Testing Laboratories).

TC 89 produced a number of standards and technical specifications/reports intended to be used by product committees for updating in their standards the requirements related to the improvement of the safety products with respect to the fire risks and introducing methods for measuring some characteristics of reaction to fire of the products (e.g. heat release, smoke opacity, etc) to be indicated in the technical information of the product.

Those data give the project engineers and the safety authorities elements for evaluating the fire scenarios of the different locations in which electrical products are installed/used, in view of a correct adoption of the measures for preventing fires or for reducing the relevant risks.

Moreover IEC Guide 104 “The preparation of safety publications and the use of basic safety publications and group safety publications” and IEC Guide 108 IEC “Guidelines for ensuring the coherency of IEC publications - Application of horizontal standards” recommend to product Technical Committees to use basic publications by with intend to contribute to coherency of requirements, avoidance of overlapping and duplication of work. to ensure the consistency of IEC publications in areas common to a number of technical committees by avoiding duplication of work and contradictory requirements and improve the mutual understanding of engineers of different technical disciplines.

Knowledge and understanding of basic standards by product committees is achieved through providing the the indications based on the documents prepared by TCs/SCs holding an horizontal function.

CONCLUSIONS

There will be a global increase of electrotechnical products in all application areas (e.g. Information Technology systems, buildings, transport, etc.), and electrotechnical products present two potential hazards : they convey energy and may be a source of ignition, they may be an avenue of fire spread.

Together with other standardisation bodies, TC 89 aims to establish basis for Fire Hazard Assessment (FHA) and for test methods which provide performance based data in a format suitable for use in Fire Safety Engineering (FSE).

 

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