Component Cooling Water System

Front 1

From memory, explain the purpose of the Component Cooling Water System in accordance with the FSAR.

Back 1

Provides water to cool safety and non-safety related components, which carry radioactive and potentially radioactive fluids. Greatly reduces the chance of leaking contaminated fluid to the lake.

Front 2

From memory, explain the purpose of interfaces (physical connections) between Component Cooling Water system and other plant systems in accordance with the Component Cooling Water System Design Basis Document.

Back 2

Normally both CCW heat exchangers are in service. Cooled by the Critical Service Water system. Temperature Control Valve maintains CCWHX’s outlet temperature automatically between 72 and 88 F.
One TIC-0821 controls both CCW HX CV's to maintain the above temp.

Front 3

Describe the operational design and normal operating range of each component in accordance with Component Cooling Water System Design Basis Document
P-52 A/B/C, CCW PUMPS

Back 3

Pump CCW to required components. Normally operate at 4367 gpm. Normally only 1 or 2 CCW Pump operating.

Front 4

Describe the operational design and normal operating range of each component in accordance with Component Cooling Water System Design Basis Document
E-54 A/B, CCW HEAT EXCHANGERS

Back 4

Cools CCW. Normally both are in service. 102-129 minimum discharge pressure when they’re both in service. 4700 gpm max allowable flow through shell side.

Front 5

Describe the operational design and normal operating range of each component in accordance with Component Cooling Water System Design Basis Document
T-3, CCW SURGE TANK

Back 5

Provides net positive suction head for CCW Pumps. Normal operating level of 47%-74%. Capacity 1230 gal and normally vented to atmosphere.

Front 6

Describe the operational design and normal operating range of each component in accordance with Component Cooling Water System Design Basis Document
RE-0915, CCW RADIATION MONITOR

Back 6

Causes SV-0915 to deenergize, which causes the CCW Surge Tank Vent to reposition to the Vent Gas Header

Front 7

List the Power Supplies for the CCW Pumps
P-52 A/B/C

Back 7

P-52 A/C from 1C 2.4 kv bus
P-52 B from 1D 2.4 kv Bus

Front 8

Describe what would cause an Auto start of a standby CCW Pump.

Back 8

SIAS of header Pressure dropping below 80 psig

Front 9

What would cause the CCW surge tank vent valve CV-0915 to reposition?

Back 9

A RAS and or a High Radiation sigmal sent from the CCW radiation monitor RE-0915.

Front 10

What causes the tempeture control of the CCW system

Back 10

TIC senses the outlet of the CCW HX and controls the mass flowrate of Critical Service water to the outlet of the CCW HX to maintain the themperature at 72-88 deg.

Front 11

What controls the level in the CCW surge tank?

Back 11

Automatic M/U to the surege tank from the Primary M/U Transfer Pump via level switches, to maintain band of 47 to 74% level.

Front 12

How is containment integrity maintained on CHP with a loss of Instrument Air as it is related to containment Isolation Valves CV-0911 and CV-0940?

Back 12

These valves have accumulators that provide a back-up to the IA, so the containment isolation Valves can be operated.

Front 13

What is the benifit of having CCW inlet valves to the the SDC HX's in parallel, CV-0937 and CV-0938?

Back 13

ensures that on a SIAS signal both valves open, which provides protection from a single failure.

Front 14

What feature ensures that CCW air operated control valves maintain their SIAS required position until SIAS is reset?

Back 14

The valves are desigined to fail open on a loss of air.

Front 15

What is the CCW system response on a SIAS?

Back 15

all three CCW pumps start, with LOOP, A/B pumps start(23 sec.) and C starts 40 sec after concurrent with a low pressure on the system (<80psig) The start signal is present for two sec.

Front 16

What is the CCW system response on a RAS?

Back 16

RAS closes the service water TCV's CV-0821 and CV-0822.

Front 17

What is the CCW system response on a CHP signal of 4 psig?

Back 17

Containment Isolation Valves CV-0910, CV-0911 AND CV-0940 get a close signal.

Front 18

What type of Chemical is added to the CCW system?

Back 18

Sodium Nitrite for corrosion control, this is common for closed systems.