TNAG-1508-FCO40-2066-Guangdong-nuclear-power-station-project-at-Daya-Bay-safety-c-1987 — Page 135

19m3

aterials within permitted limits to ensure that residents

protected from harm.

1.

This worst case scenario supposes a

burst in the primary loop pipes,

causing

coolant to spurt out and bringing about a

loss of water in the

reactor. If the

reactor core is damaged by

fire due to

loss

coolant, of

large a

amount of

radioactive

materials may

be released

into the containment building.

In this

event

the reactor

would perform

an

shut-down

and the

automatic emergency

multiple safety installations would carry

out their protective work.

are

2.

The drastic loss of

in

pressure

the primary loop would activate

the

water

injection safety

reservoir

of the

emergency

core

coolant system to open

the stop

valves and inject emergency

water

into the primary loop in order

to

make up for the coolant lost by the

system.

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