Unshielded cables do not need inner shielding to cut back EMI. Underneath the problem, unshielded cables cancel out EMI by using a twisted set of wires. These lightweight and skinny cables make them most effective for indoor purposes with LAN or related community cable units within an Office environment environment. https://betadine-buy-online18515.blogpostie.com/53103256/what-does-enerdoor-three-phase-filter-mean