The scope of IEC 61326-1 applies to this part of IEC 61326 but is limited to systems and equipment for industrial applications within a specified electromagnetic environment and intended to perform safety functions as defined in IEC 61508 with SIL 1-3. The electromagnetic environments encompassed by this product family standard are industrial, both indoor and outdoor, as they can be found in industrial applications with an electromagnetic environment having specified characteristics (for example, process industry). The difference between the electromagnetic environment covered by this standard compared to the general industrial environment (see IEC 61326-3-1) is due to the mitigation measures employed against electromagnetic phenomena leading to a specified electromagnetic environment. The environment of industrial application with a specified electromagnetic environment typically includes the following characteristics: – industrial area with limited access; – limited use of mobile transmitter; – dedicated cables for power supply and control, signal or communication lines; – separation between power supply and control, signal or communication cables; – factory building mostly consisting of metal construction; – overvoltage/lightning protection by appropriate measures (for example, metal construction of the building or use of protection devices); – pipe heating systems driven by a.c. main power may be present; – no high-voltage substation close to sensitive areas; – presence of CISPR 11 Group 2 ISM equipment using ISM frequencies only with low power; – competent staff; – periodical maintenance of equipment and systems; – mounting and installation guidelines for equipment and systems. A more detailed description of the above-mentioned typical characteristics is given in Annex B. Equipment and systems considered as “proven-in-use” according to IEC 61508 or IEC 61511 are excluded from the scope of IEC 61326-3-2. Fire alarm systems and security alarm systems intended for protection of buildings are excluded from the scope of IEC 61326-3-2.
BS EN 61326-3-2-2008由英國標準學會 GB-BSI 發布于 2009-01-31,并于 2009-01-31 實施。
BS EN 61326-3-2-2008 在中國標準分類中歸屬于: K60 電氣設備與器具綜合,L06 電磁兼容,在國際標準分類中歸屬于: 25.040.40 工業過程的測量和控制,33.100.20 抗擾度。
* 在 BS EN 61326-3-2-2008 發布之后有更新,請注意新發布標準的變化。
BS EN 61326-3-2-2008 測量、控制和實驗室用電氣設備.電磁兼容性(EMC)的要求.與安全相關的系統和用于與執行安全相關功能(功能安全)的設備用抗擾度要求.帶指定電磁環境的工業設施 由 BS EN 61326-1998 變更而來。
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