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In-Service Inspection of Nuclear Power Plants - gnssn - International ...

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This publication is no longer valid<br />

Please see http://www-ns.iaea.org/standards/<br />

Annex 2<br />

Ooc.-No.<br />

KKG-Q-PS005<br />

NUCLEAR POWER PLANT G0ES6EN-DAENIKEN LTD<br />

Page:<br />

out <strong>of</strong>:<br />

Rev.<br />

a. Stationary magnetization device<br />

(complete magnetization)<br />

b. Handmagnet (partial magnetization)<br />

Fig. 1. Examples <strong>of</strong> yoke magnetization<br />

ws<br />

to<br />

Sp<br />

f/f<br />

f<br />

H<br />

C<br />

I<br />

Material<br />

yoke<br />

energizing coil<br />

clamping contact surfaces<br />

defect in typical detection position<br />

typical field line<br />

direct or alternating current source<br />

current in material<br />

131

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