Thaum npaj cov xaim rau cable sib dhos, tej zaum yuav muaj qee qhov kev puas tsuaj ntawm cov hlau rwb thaiv tsev. Feem ntau peb ua raws IPC-A-620 los txiav txim qhov zoo lossis tsis zoo.
3.4 Kev puas tsuaj rwb thaiv tsev
Hom phiaj - Chav 1,2,3
• Rwb thaiv tsev tau raug txiav kom zoo zoo tsis muaj cov cim ntawm pinching, rub, fraying, discoloration, charring los yog hlawv.
Txaus - Chav 1,2,3
• Me ntsis kev xav tsis zoo nyob rau hauv lub rwb thaiv tsev los ntawm kev tuav ntawm txhua yam strippers.
• Rwb thaiv tsev thickness tsis txo ntau tshaj 20%.
• Cov rwb thaiv tsev tsis sib npaug lossis ragged tsawg dua 50% ntawm cov rwb thaiv tsev sab nraud txoj kab uas hla lossis 1.0 hli [0.039 hauv] qhov twg tsawg dua.
• Rwb thaiv tsev tsis muaj xim los ntawm kev ua haujlwm thermal stripping.
Tsis Zoo - Chav Kawm 1,2,3
• Txhua qhov kev txiav lossis tawg hauv rwb thaiv tsev (tsis pom).
• rwb thaiv tsev thickness yog txo los ntawm ntau tshaj 20% (Daim duab 3-11, 3-12).
• Cov rwb thaiv tsev tsis sib npaug lossis ragged ntau dua 50% ntawm cov rwb thaiv tsev sab nraud txoj kab uas hla lossis 1.0 hli [0.039 hauv] qhov twg yog ntau dua (Daim duab 3-13).
• Rwb thaiv tsev yog charred (Daim duab 3-14).
• Rwb thaiv tsev yog yaj rau hauv cov hlua hlau (tsis pom).
