Tham khảo tài liệu 'krone - white paper - truenet - moisture ingress - 2003', công nghệ thông tin, quản trị mạng phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | The Effect of Moisture Ingress on AirES™ Cable This white paper will focus on issues NEC Article 100 – Definitions related to moisture and its effects on Locations: UTP Plenum cabling solutions. For the Damp locations: Partially protected locations purpose of argument we will be looking under canopies, marquees, roofed open porches, beyond standards and testing for issues and like locations, and interior locations subject to that, quite frankly, should never happen moderate degrees of moisture, such as some under normal circumstances. However, basements, some barns, and some cold-storage as many of us who have been in the warehouses. industry for a number of years realize, Dry Locations: A location not normally subject to sometimes the unlikely becomes reality! dampness or wetness. A location classified as dry may be temporarily subject to dampness or wetness, The industry bodies have this to say about wet and as in the case of a building under construction. dry locations: Wet Locations: Installations underground or in concrete slabs or masonry in direct contact with BICSI TDM manual, 9th edition, Chapter 4 – the earth or other liquids, such as vehicle washing Horizontal Distribution Systems, Section 1 – areas, and locations exposed to weather and Horizontal Pathway Systems, final paragraph of page unprotected. 4-5, which states: Wet Locations The above being said, let's have some fun. Intrabuilding horizontal pathways shall be installed in "dry" locations that protect cables from mois- The AirES cabling innovation incorporates air pockets ture levels that are beyond the intended operating around the primary conductor. They run the entire range of "inside" premises cables. For example, length of the cable (a bit like rifling). These air pock- slab-on-grade construction where pathways are ets allow AirES to achieve unparalleled electrical per- installed underground or in concrete slabs that are formance to overall size. This performance is in direct contact with .
