Sababta tooska ah ee kor u kaca heerkulka PCB waxaa sabab u ah jiritaanka aaladaha korontada wareega, aaladaha elektiroonigga ah waxay leeyihiin heerar kala duwan oo koronto ah, xoojinta kuleylku way kala duwan tahay korontadu.
2 ifafaale oo kor u kaca heerkulka PCB:
(1) Kor u kaca heerkulka deegaanka ama kor u kaca heerkulka aagga weyn;
(2) Kor u kaca heerkulka muddada-gaaban ama muddada-dheer.
Falanqaynta awoodda kulaylka PCB, qaybaha soo socda ayaa guud ahaan la falanqeeyay:
1. Isticmaalka korontada
(1) in la falanqeeyo isticmaalka tamarta halkii unug;
(2) falanqeeyaan awood qaybsiga PCB-ga.
2. Qaab dhismeedka PCB
(1) cabbirka PCB;
(2) agabka.
3. Ku rakibida PCB
(1) Habka rakibaadda (sida rakibidda toosan iyo rakibidda toosan);
(2) xaaladda xiridda iyo fogaanta guriga.
4. Shucaaca kulaylka
(1) iskudarka shucaaca ee dusha PCB;
(2) farqiga heerkulka u dhexeeya PCB iyo dusha ku xiga iyo heerkulkooda dhammaystiran;
5. Qabashada kulaylka
(1) rakibi hiitarka;
(2) habaynta dhismayaasha kale ee rakibida.
6. Kulaylka kulaylka
(1) isku-dhafka dabiiciga ah;
(2) Qaboojinta qasabka ah.
Falanqaynta PCB ee qodobbada kor ku xusan waa hab wax ku ool ah oo lagu xalliyo kor u kaca heerkulka PCB, inta badan badeecada iyo nidaamka qodobadani waa kuwo isku xiran oo ku xiran, inta badan arrimaha waa in lagu falanqeeyaa iyada oo loo eegayo xaaladda dhabta ah, kaliya xaalad gaar ah oo dhab ah ayaa noqon karta mid ka badan. si sax ah loo xisaabiyay ama lagu qiyaasay kor u kaca heerkulka iyo cabbirrada awoodda.