1.Sampling Tests

Sampling test items: cable conductor DC resistance; finished cable withstand voltage test；conductor single wire diameter and deviation；insulation average thickness, thinnest point；The sheathed average thickness and thinnest point

2.Type test items

Sampling test items: cable conductor DC resistance; finished cable withstand voltage test；conductor single wire diameter and deviation；insulation average thickness, thinnest point；the sheathed average thickness and thinnest poin；change rate of tensile strength and elongation of insulation and sheath before and after aging；insulated wire core withstand voltage test；hot extension test；ozone resistance test；finished cable flexure test, etc.