Chingwe cha Mphamvu Yotsika ya Voltage ya ASTM
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Chingwe cha Mphamvu cha ASTM chokhazikika cha XLPE chotetezedwa ndi LV
Popeza zingwe zamagetsi za conductor zitatu kapena zinayi zinali ndi ma volts 600, 90 deg. C. m'malo ouma kapena onyowa.
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Chingwe cha Mphamvu cha LV chotetezedwa ndi PVC cha ASTM Standard
Amagwiritsidwa ntchito polamulira ndi kugwiritsa ntchito mphamvu m'mafakitale opanga mankhwala, mafakitale, malo ogwiritsira ntchito magetsi ndi malo opangira magetsi, nyumba zogona ndi zamalonda