Survey and Test Environment for ITER EPP#12 In-PP Electrical Components

The purpose of equatorial port plug 12 (EPP#12) of the International Thermonuclear Experimental Reactor (ITER) is to provide a common platform and interfaces, support or constrainer for five diagnostic plant systems, and one glow discharging cleaning (GDC) system. As EPP#12 integrator, a team from the Institute of Plasma Physics Chinese of Sciences (CASIPP) performs the design work. The instrument and control (I&C) is an important part of system design. The main I&C functions will be implemented that include temperature measurements of the port structures and electrical heater with temperature control during baking of windows and providing spare input measurement channel. The integrator should provide the embedded temperature sensors, associated cabling, electrical connectors, and electrical feedthrough. Most electrical components will be deployed in the port plug structure (PPS) in which vacuum quality classification (VQC) is VQC1A, the highest level, and the working temperature is from 70 °C to 240 °C. In this paper, we present the survey and research of electrical components for ITER EPP#12, and the design and implementation of a test environment for electrical components which is based on ITER CODAC are also described.