This European Standard specifies requirements for limiters (or limiting devices) which are incorporated into safety systems for shell boilers as defined in EN 12953-1.A limiter (or limiting device) can be either:- a safety accessory as defined in the Pressure Equipment Directive, Article 1, clause 2.1.3, and needs to include the safety logic and final actuator, or- one element of a safety system, for example, a self-monitoring water level sensor used as part of a safety accessory as defined in the Pressure Equipment Directive, Article 1, clause 2.1.3. The overall boiler protection function needs to be provided in association with additional safety logic (wh
DS/EN 12953-9-2007由丹麦标准化协会 DK-DS 发布于 2007-10-15,并于 2007-10-15 实施。
DS/EN 12953-9-2007在国际标准分类中归属于: 27.060.30 锅炉和热交换器。
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