Functional design criteria for interim stabilization safety class 1 trip circuit
This Functional Design Criteria document outlines the basic requirements for the Safety Class 1 Trip Circuit. The objective of the Safety Class 1 Trip Circuit is to isolate the power circuitry to the Class 1 Division 2, Group B or lesser grade electrically fed loads located in the pump pit. The electrically fed load circuits need to have power isolated to them upon receipt of the following conditions, loss of flammable gases being released (above a predetermined threshold), and seismic(greater than 0.12g acceleration) activity. The two circuits requiring power isolation are the pump and heat trace power circuits. The Safety Class 1 Trip Circuit will be used to support salt well pumping in SST`s containing potentially flammable gas-bearing / gas-producing radioactive waste.
- Research Organization:
- Westinghouse Hanford Co., Richland, WA (United States)
- Sponsoring Organization:
- USDOE Office of Environmental Restoration and Waste Management, Washington, DC (United States)
- DOE Contract Number:
- AC06-96RL13200
- OSTI ID:
- 657370
- Report Number(s):
- WHC-SD-WM-FDC-053; ON: DE98054213; BR: EW3120071; TRN: 96000495
- Resource Relation:
- Other Information: PBD: 10 Jun 1996
- Country of Publication:
- United States
- Language:
- English
Similar Records
Radioactive air emissions notice of construction use of a portable exhauster on single-shell tanks during salt well pumping and other activities
IEEE standard criteria for independence of class 1E equipment and circuits