DESIGN AND INSTALLATION OF ELECTRIC HEAT TRACING SYSTEMS FOR NUCLEAR POWER GENERATING STATIONS, RECOMMENDED PRACTICE FOR THE
Institute of Electrical & Electronics Engineers
1 Scope and purpose
2 Definitions
3 References
4 Design of electric heat tracing systems
4.1 Identification of requirements
4.2 Heater design considerations
4.3 Power system design considerations
4.4 Temperature control considerations
4.5 Alarm considerations
4.6 Finished drawings and documents
4.7 Test considerations
5 Installation of electric heat tracing systems
5.1 Distribution and use of drawings at the
installation site
5.2 Receiving of materials
5.3 Installation of materials
5.4 Startup testing for critical process control
systems
6 Maintenance of electric heat tracing systems
6.1 Record keeping
6.2 Heater, alarm, and temperature controller circuit
checks
6.3 Inspections
6.4 Periodic testing
Figures
1 Series heater
2 Parallel heaters
3 Typical one-line diagram of electric heat tracing
system
Tables
1 Line list
Appendices
A Temperature and solubility tables and curves of
borated water, caustic soda, and sodium pentaborate
systems
B The function of electric heat tracing systems
required to support engineered safety features
piping systems
B1 Introduction
B2 Postulated conditions
B3 General industry technical specifications
C Electric heat tracing system requirements for post-
accident sampling systems in nuclear power
generating systems
C1 Introduction
C2 Regulations
C3 Electric heat tracing system
C4 References
C5 Bibliography
Appendix Figures
A1 Boric acid solubility curve
A2 Sodium pentaborate solubility curve
Appendix Tables
A1 Typical temperature parameters for boric acid
A2 Typical temperature parameters for sodium hydroxide
(caustic soda)
B1 Station operational modes
Describes recommended practices for designing and installing electric heat tracing systems in nuclear power generating stations. These systems apply to critical process temperature control and for process temperature control, on mechanical piping systems that carry borated water, caustic soda and other solutions.
| Document Type | Standard |
| Status | Current |
| Publisher | Institute of Electrical & Electronics Engineers |
