What is BS IEC 62887- Pressure transmitters nuclear power plants?
BS IEC 62887 is an international standard that discusses tests methods and characteristics of pressure transmitters, with the aim to maintain integrity of safety systems containing devices in nuclear power plants.
BS IEC 62887 is applicable to general aspects of design, manufacturing and test methods for pressure transmitters used in instrumentation systems important to safety in all nuclear power plants (PWR, BWR, FBR, etc.).
BS IEC 62887 deals with specific requirements for nuclear applications of pressure transmitters including design, materials, manufacturing, testing, calibration, and inspection.
BS IEC 62887 considers all the pressure transmitters with electronic modules separated or integrated to the sensing element to withstand the nuclear conditions.
Who is BS IEC 62887- Pressure transmitters nuclear power plants for?
BS IEC 62887 on pressure transmitters is applicable to:
- Nuclear power stations
- Electric power plants
- Atomic energy agencies
- Atomic research organizations
- Nuclear power plants electrical systems and equipment manufacturers
- Operators of NPP, systems evaluators and licensors
- Nuclear safety authorities
- Regulatory authorities
Why should you use BS IEC 62887- Pressure transmitters nuclear power plants?
The conditions imposed by reactor use are often different from those which occur in non-nuclear applications. Exposure to radiations (mainly neutron, gamma, even beta) is liable to cause alterations in the measurements. Mechanical and electrical properties of transmitters can be affected by nuclear transformations, heating and structural changes. Particular attention is paid to the adoption of standards for the choice of materials and installation. Furthermore, design consideration is given to the effects of high environmental pressure, high temperature, chemical spray, temperature gradients and temperature cycling as well as to the way in which the temperature and pressure measuring system could influence the safety or economic performance of the reactor.
BS IEC 62887 provides more particularly recommendations for the following aspects:
- Selection
- Characteristics
- Manufacture and control
- Qualification
- Obsolescence
Overall, BS IEC 62887 assists you in avoiding any adverse implications on nuclear power plants with safe design and use of pressure transmitters. Pressure transmitters important to safety shall thus be qualified to prove their operation in normal and accident conditions according to qualification references acknowledged by nuclear safety authorities.