The cable core is filled with the filling compound to protect it from water ingress, over which a thin PE inner sheath is applied.
2
缆芯：由松套管(和填充绳)围绕中心加强芯绞合成紧凑和圆形的缆芯，缆芯内缝隙充以阻水填充物。
Cable core: Tubes (and fillers) are stranded around the strength member into a compact and circular cable core which is filled with the filling compound to protect it from water ingress.
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