Unobangela ngqo wonyulu kubushushu be-PCB unyuka ngenxa yobukho bezixhobo zokubonisa amandla ekhompyutha, izixhobo ze-elektroniki zinezinqanaba ezahlukeneyo zokulimaza amandla, kwaye ubuqili bokufudumeza buyahlukahlukana nokungasebenzi kwamandla.

I-2 phenomena yobushushu inyuka kwi-PCB:

(1) iqondo lobushushu lendawo linyuka okanye iqondo elikhulu lendawo linyuka;

(2) Vuka iqondo elifutshane okanye ixesha elide linyuka.

Kuhlalutyo lwe-PCB yamandla e-PCB, le miba ilandelayo ihlaziywa ngokubanzi:

1. Ukusetyenziswa kwamandla ombane

(1) Hlaziya ukusebenzisa amandla kwicandelo ngalinye;

(2) Hlaziya ukuhanjiswa kwamandla kwi-PCB.

2. Ulwakhiwo lwe-PCB

(1) ubungakanani be-PCB;

(2) Izixhobo.

I-3. Ukufakwa kwePCB

(1) Indlela yokufaka (efana nokufakelwa nkqo kunye nokufakwa ngokuthe ngqo);

(2) imeko yokutywina kunye nomgama ovela kwizindlu.

4. Imitha ye-thermal

(1) ukusebenza kwe-radiation kwindawo ye-PCB;

(2) Umahluko wobushushu phakathi kwePCB kunye nomphezulu obekiweyo kunye nobushushu babo obugqibeleleyo;

5. Ukuqulunqwa kobushushu

(1) Faka i-radiator;

(2) Ukuqulunqwa kwezinye izinto zokufaka kufakelo.

6. Intuthuzelo ye-thermal

(1) Ingqungquthela yendalo;

(2) Ukunyanzeliswa okupholisayo.

Uhlalutyo lwe-PCB kule miba ingentla yindlela esebenzayo yokusombulula amaqondo obushushu e-PCB, rhoqo kwimveliso kunye nenkqubo yezinto ezinokuqikelelwa ukuba zibaliwe ngokuchanekileyo, ziqikelelwa kwiqondo lokuhamba ngeqondo lobushushu.