§50.46a. Acceptance criteria for reactor coolant system venting systems.
10 C.F.R. § 50.46a
Each nuclear power reactor must be provided with high point vents for the reactor coolant system, for the reactor vessel head, and for other systems required to maintain adequate core cooling if the accumulation of noncondensible gases would cause the loss of function of these systems. High point vents are not required for the tubes in U-tube steam generators. Acceptable venting systems must meet the following criteria:
The high point vents must be remotely operated from the control room.
The design of the vents and associated controls, instruments and power sources must conform to appendix A and appendix B of this part.
The vent system must be designed to ensure that:
The vents will perform their safety functions; and
There would not be inadvertent or irreversible actuation of a vent.
Notes, amendments, and revision history
Amendments
[68 FR 54142, Sept. 16, 2003]
Authority
Authority: Atomic Energy Act of 1954, secs. 11, 101, 102, 103, 104, 105, 108, 122, 147, 149, 161, 181, 182, 183, 184, 185, 186, 187, 189, 223, 234 (42 U.S.C. 2014, 2131, 2132, 2133, 2134, 2135, 2138, 2152, 2167, 2169, 2201, 2231, 2232, 2233, 2234, 2235, 2236, 2237, 2239, 2273, 2282); Energy Reorganization Act of 1974, secs. 201, 202, 206, 211 (42 U.S.C. 5841, 5842, 5846, 5851); Nuclear Waste Policy Act of 1982, sec. 306 (42 U.S.C. 10226); National Environmental Policy Act of 1969 (42 U.S.C. 4332); 44 U.S.C. 3504 note; ADVANCE Act of 2024, sec. 301 (42 U.S.C. 2133 note).
Source
Source: 21 FR 355, Jan. 19, 1956, unless otherwise noted.
Amendments
[68 FR 54142, Sept. 16, 2003]