Conductors and Cables
Cross-references point to the standards that now own the topic after the October electrical rewrites: MV cable to medium-voltage-cables, energy storage to battery-energy-storage-systems, service grounding to grounding-and-bonding, lightning to lightning-protection.
Showing changes from Rev 8
to Rev 9
in Conductors and Cables.
---
title: Conductors and Cables
category: Electrical
description: >
When to use: Building wire and cable for power, lighting, branch circuit, and feeder applications rated 600V and below in commercial, institutional, and industrial buildings. Covers single conductors installed in raceways and cable tray, Type MC metal-clad cable, and Type AC armored cable; conductor materials (copper and aluminum); insulation types (THHN/THWN-2, XHHW-2, RHW-2, USE-2); ampacity selection and derating; voltage drop; color coding and conductor identification; splicing, connectors, and terminations; pulling and installation; insulation resistance testing; and field acceptance.
− Not intended for: Grounding electrode conductors and equipment grounding conductors (see [[sync/grounding-and-bonding]]); raceway installation, support, and fill (see [[sync/raceways-and-conduit]]); service-entrance conductors and metering equipment; medium-voltage (above 600V) shielded cable systems, which are specified separately; motor control wiring, low-voltage control circuits, instrumentation cable below 50V, and low-voltage signal wiring (see [[sync/instrumentation-and-control-cable]]); communications and data cabling (see [[sync/structured-cabling]]); switchgear and switchboard internal wiring (see [[sync/low-voltage-switchgear]]); panelboard internal wiring (see [[sync/panelboards]]).
+ Not intended for: Grounding electrode conductors and equipment grounding conductors (see [[sync/grounding-and-bonding]]); raceway installation, support, and fill (see [[sync/raceways-and-conduit]]); service-entrance conductors and metering equipment; medium-voltage (above 600V) shielded cable systems (see [[sync/medium-voltage-cables]]); motor control wiring, low-voltage control circuits, instrumentation cable below 50V, and low-voltage signal wiring (see [[sync/instrumentation-and-control-cable]]); communications and data cabling (see [[sync/structured-cabling]]); switchgear and switchboard internal wiring (see [[sync/low-voltage-switchgear]]); panelboard internal wiring (see [[sync/panelboards]]).
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## This standard does not cover: {note}
−- Medium-voltage cable rated above 600V, which requires shielded construction, separate termination kits, and stress cone design
+- Medium-voltage cable rated above 600V, which requires shielded construction, separate termination kits, and stress cone design (see [[sync/medium-voltage-cables]])
- Service-entrance conductors and metering equipment
- Communications and data wiring (Category cabling, fiber optic)
…923 unchanged lines
## Where the parties disagree whether a warranty-period failure results from workmanship, product defect, or building conditions such as moisture infiltration or chemical attack, the Engineer of Record shall make the initial determination.