The advantage of using plenum cable for twisted- pair cable is it is "Fire resistant"
<u>Explanation:</u>
Plenum cable is a cable that is used in plenum spaces of buildings. These cables have fire resistance characteristic with low smoke. These cables are self extinguishing, and never re-ignite. They require less space for installation and allows space for air circulation to be used by the HVAC system. Twisted-pair, coaxial, HDMI and DVI variants of cable are manufactured in the plenum version. Plenum cable is mandatory to be fixed in any "air handling" area.
The moldboard is a curved iron wedge formed by the curved part of a steel plow blade that turns the furrow <span>used to lift and turn the soil.</span><span>
A moldboard was a feature and technological development of the device plow.
</span>It was used in farming for initial cultivation of soil, for preparation for sowing seed or planting to loosen or turn the soil.