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PNW 86C-1815 ED1: Fibre optic sensors Part 7-3: Voltage measurement Polarimetric method

Scope

The proposed International Standard provides technical requirements and recommendations for the measurement of voltage by a polarimetric method. It applies to a wide area of technical applications (e.g. electric power station, substation, railway, aluminum smelting plant, high-frequency measurement, etc.). This standard relates primarily to the technical safety of these objects.

If approved, this standard will be part of the IEC 61757 series, which is dedicated to fibre optic sensors. The individual parts of the IEC 61757 series are numbered as IEC 61757-M-T, where M denotes the measure and T the technology of the fibre optic sensor. The sub-series IEC 617575-7-T is concerned with voltage measurements. 

Purpose

The proposed standard is based on the technologies and principles introduced by the mother standard IEC 61757. The objective of this mother standard is to define, classify and provide the framework for specifying fibre optic sensors, and their specific components and subassemblies. The proposed standard is specifying in detail the technical requirements and recommendations for the measurement of voltage by polarimetric measurement (Pockels effect). The proposed standard is specifying harmonized procedures to determine the measurement performance and reliability of the specific fibre optic sensors, and to validate the sensors for specific applications. It will allow for the first time a standardized comparison of the technical data of different manufacturers.

Specific aims and reasons for this standardization activity

The proposed standard provides manufacturers and applicants of fibre optic voltage sensors with technical specifications and related measurement procedures, which will improve the confidence in this new technology and accelerate its acceptance in the market, especially for safety relevant applications. The standard defines harmonized and technically accurate specifications as well as corresponding test methods to determine the performances and the reliability of these voltage sensors.

Main interest and timeliness of the activity

Fibre optic sensors are already used in various fields of application, but still on a relatively small scale. Broader acceptance of this sensor technology is hindered by the lack of internationally harmonized standards in the field of fibre optic voltage sensors.

Feasibility of the activity

There are no factors (e.g. patents, principal regulations from regulatory bodies) known, which could hinder the successful establishment or general application of the standard. Moreover, WG 2 of SC 86C has 69 expert members from 17 countries, representing a wealth of expertise and knowledge in the field of fibre optic sensing.

Benefits

Equipment vendors and users both will benefit from this standard, which provides well-defined guidelines to manufacturers for specifying measurement performance and reliability of their products and, in addition, helps users to select, install and operate fibre optic voltage sensors based on widely recognized procedures.

Comment on proposal

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Please email further comments to: debbie.stead@bsigroup.com

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