ML20008D755
| ML20008D755 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 01/13/1969 |
| From: | CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | |
| References | |
| NUDOCS 8007300626 | |
| Download: ML20008D755 (3) | |
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APPEIDIX 1A GLCSSARY OF TERMS AIR PE"IECULATIC?! A'!D COOLING SYSTEM ( ADACS )
Equipment located within the reacter building ccnzisting of fcur air fin tube heat excbangers eccled by service water.
The function of this system is to centr:1 the reactor building ambient temperature during normal cperation and to provide a redundant event of a loss-of-coolant and maximum hypotnetical accident. system to the l
_LCSS-OF-CCOLANT ACCIDCi? (LOCAI Any uncontrolled loss of reactor coola:
the postulated double ended simultaneous rupture of the largest reactor, rangi coolant system piping.
MAXDiCI HYPOTHETICAL ACCIDE:!T (MHA)
A hypothetical maximum break size LCCA in which fission products are assum d to be released from the reactor without identification of a mechanis e
cause the release.
m to ting hazard to the general public for the proposed site.This accident is ce i
ff NUCLEAR STEAM SYSTEM (NSS)
Equipment comprised of the reactor, steam generatorc, pressurizer coolant pumps and piping, instrumentation and control, and principal auxil-
, reactor iaries.
ENGINEEPED SAFEGUARDS (ES)
Those systems which perform the safety functions of post-accident reactor truilding ecoling, isolation, core cooling, and reactor building icdine removal.
The systems which constitute the engineered safeguards are:
High-Pressure Core Injection (Make-Up and Purification)
Core Flooding (CF)
Low-Pressure Core Injection (DH)
Reactor Building Spray Reactor Building Air Recirculation and Cooling snd the associated instrumentation and control systems for initiation of the system operation.
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ENGINEERED SAFEGUARDS ACTUATION SYSTEM
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The sensors, logic, and actuating elements which initiate engineered safe-guards action.
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cMEE0E' ICY CORE COOLING SYSTDI (ECCS) i i
This syste= is cc= prised of three high-pressure injection pu=rs, two core
.lceding tanks, two 1cw-pressure injection pumps and assceiated tipinz valving, and controls to provide post-accident cere eccling functicn usine water frc= an external source er by recirculation of water frc= the ra-
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actor building.
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