62 lines
2.5 KiB
Markdown
62 lines
2.5 KiB
Markdown
---
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title: Article 800 General Requirements for Communications Systems
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tags:
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- exclude-from-word-count
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- topic/construction/electrical
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- type/media/reference
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up: "[[nfpa-70_national-electric-code]]"
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---
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# Article 800 General Requirements for Communications Systems
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## Part IV. Installation Methods Within Buildings
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### 800.110 Raceways, Cable Routing Assemblies, and Cable Trays.
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#### 800.110(A) Types of Raceways.
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Wires and cables shall be permitted to be installed in raceways that comply with either 800.110(A)(1) or (A)(2).
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Medium-power network-powered broadband communications cables
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shall not be permitted to be installed in raceways that comply with 800.110(A)(2).
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##### 800.110(A)(1) Raceways Recognized in Chapter 3.
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Wires and cables shall be permitted to be installed in any raceway included in Chapter 3.
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The raceways shall be installed in accordance with the requirements of Chapter 3.
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##### 800.110(A)(2) Communications Raceways.
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Wires and cables shall be permitted to be installed in plenum communications raceways, riser communications raceways, and general-purpose communications raceways selected in accordance with Table 800.154(b),
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listed in accordance with 800.182,
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and installed in accordance with 800.113 and 362.24 through 362.56,
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where the requirements applicable to [[nfpa-70_362_ent|electrical nonmetallic tubing (ENT)]] apply.
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##### 800.110(A)(3) Innerduct for Communications Wires and Cables, Coaxial Cables, or Network-Powered Broadband Communications Cables.
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Listed plenum communications raceways,
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listed riser communications raceways,
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and listed general-purpose communications raceways
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selected in accordance with Table 800.154(b)
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shall be permitted to be installed as innerduct
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in any type of listed raceway permitted in Chapter 3.
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#### 800.110(B) Raceway Fill.
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The raceway fill requirements of Chapters 3 and 9
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shall apply to medium-power network-powered broadband communications cables.
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#### 800.110(C) Cable Routing Assemblies.
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Cables shall be permitted to be installed in plenum cable routing assemblies,
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riser cable routing assemblies,
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and general-purpose cable routing assemblies
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selected in accordance with Table 800.154(c),
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listed in accordance with 800.182,
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and installed in accordance with 800.110(C)(1) and (C)(2) and 800.113.
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##### 800.110(C)(1) Horizontal Support.
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Cable routing assemblies shall be supported where run horizontally
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at intervals not to exceed 900 mm (3 ft) and at each end or joint,
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unless listed for other support intervals.
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In no case shall the distance between supports exceed 3 m (10 ft).
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