KWSA Networks supplies OM5/OS2 fiber, FC/ST connectors, distribution boxes, optical circulators, QSFP28, PDU, FTTR panels, rail transit and communication cabling for African and European markets.
Due to their exposure to the open air because of the cable trays, the wires contained within need a very durable outer covering. The regulations dictate that the cables must either be Type TC (also known as Tray Rated) or must be metal-armored (Type MC). Cable trays and pipes serve as the backbone of electrical and fluid transportation systems in both residential and industrial environments. The intent of this regulation is to prevent the possibility of cables collapsing prematurely in the event of a fire and becoming a ha w. The following charts give the number of 3M pillows needed to completely firestop an opening that cable tray passes through.