Conduit that originates indoors but passes through or under a concrete slab is often subject to water infiltration. National Electric Code (NEC) 2017 Edition, Article 100 and the BICSI
Telecommunication Distribution Methods Manual (TDMM) define these environments as wet locations since the slab and the associated conduit are subject to saturation by water. Standard plenum or riser rated cables can’t be used in these situations since water will have a catastrophic effect on both their electrical performance and physical properties. The typical solution has been to use outdoor cable in the conduit and then transition to the appropriately rated cable type once indoors.
DryBit™ Category 6 cable from Hitachi Cable America eliminates the time and cost associated with transitioning from outdoor cable to indoor-rated cable. DryBit™ Category 6 cable is designed for use in wet environments so long term submersion in water will not impact its electrical performance or degrade its outer jacket. DryBit™ is verified by Underwriters Laboratories (ULA826376) for long term water submersion. DryBit™ cable also carries a plenum (CMP) rating. This CMP rating makes DryBit™ cable one of the most versatile cables available by simplifying installation and eliminating the costs associated with transition points. And, since DryBit™ is verified for electrical performance by UL, it’s guaranteed to support all
applications intended for Category 6 cable.
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