Photo: nVent Caddy
7 Relevant Codes and Standards
International and Regional
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TIA TSB-184-A (Guidelines for supporting power delivery over balanced twisted-pair cabling)
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ANSI/TIA-569-D + Add 2 (Addendum 2 - Additional pathway and space considerations for
supporting remote powering over balanced twisted pair cabling) – Published last month
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ISO/IEC 14763-2 (Information technology -- Implementation and operation of customer premises cabling -- Part 2: Planning and installation)
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ISO/IEC TS 29125 (Information Technology – Telecommunications cabling requirements for remote powering of terminal equipment)
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ANSI/BICSI N2 (Practices for the Installation of Telecommunications and ICT Cabling Intended to Support Remote Power)
United States
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NEC (NFPA 70)
Canada
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Canadian Electrical Code (C22.1)
6 Definitions of Cable Bundle per Codes
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TIA-TSB-184-A:
"A group of cables that are tied together or in contact with one another in a closely packed configuration for at least 1 m."
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ANSI/TIA-569-D-2:
"A group of cables that are tied together or in contact with one another in a closely packed configuration for at least 1 m."
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ANSI/BICSI N2-17:
"A group of cables that are tied together or in contact with one another in a closely packed configuration for at least 600 mm (24 in)."
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2020 NEC 725.2 Second Draft:
"A group of cables that are tied together or in contact with one another in a closely packed configuration for at least 1.0 m (40 in)."
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ISO/IEC TS 29125:
"Several cables tied together or in contact with one another in a parallel configuration for at least 1 m, with the cross-section profile of the arrangement basically circular."
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ISO/IEC 14763-2:
"Multiple cables maintained in close proximity, generally by fasteners (e.g. cable ties)."
Data is from the recent CI&M Webcast, "Practical Impacts of Twisted-Pair Cable Evolution," as presented by Ward Judson, Ph. D., engineering manager of the labs and product certifications for nVent (www.erico.com), including the nVent CADDY brand.
Judson participates in several codes and standards committees, including BICSI, TIA TR-42, UL, and NEMA. He also serves as BICSI’s representative as an Alternate to NEC Panel 3. He was the editor for the recently published informative addendum ANSI/TIA-569-D-2 with pathway and space considerations for supporting remote powering.
