IEC 62397-2007 核电站.仪器装置和控制系统的安全性.电阻温度探测器

标准号：IEC 62397-2007
中文标准名称：核电站.仪器装置和控制系统的安全性.电阻温度探测器
英文标准名称：Nuclear power plants - Instrumentation and control important to safety - Resistance temperature detectors
标准类型：F84
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：F84
国际标准分类号：27.120.20
适用范围：This International Standard describes the requirements for resistance temperature detectors(RTDs) suitable for nuclear power plant (NPP) services. The requirements of RTDs includedesign, materials, manufacturing, testing, calibration, procurement, and inspection. In nuclearapplication, both “direct-immersion” and “thermowell-mounted” RTD are commonly used;however, this standard does not exclude any other design of RTD which may be required forcertain special applications in various types of reactors.RTDs can be supplied in different internal constructions, which depend on the manufacture,qualifications, and applications. For RTD being used in an NPP, the design and structure ofthe RTD should consider the environmental conditions in which the detector is being usedunder normal operating and under design basis accident conditions, as well as thequalification tests specified by the user 1. The use of a flexible mineral-insulated (MI) cablebetween the RTD and the connector is commonly adopted, and the user may also adopt anyother construction. A variation of this design may include a rigid exterior sheath over the MIcable between the RTD and the connector, these being welded to each other.The scope of this standard does not cover the design, material selection, and construction ofthe thermowell, the guide tube, the extension cable, and the temperature transmitter or bridgewhich may be associated with the RTD.