Conductors and Cables
Remake batch 26: rewritten from scratch under the authoring cheatsheet with datasheet constraints; neighbors re-pointed to the new scope boundaries; the electrical code is now the adopted-electrical-code project fact
Showing changes from Rev 9
to Rev 10
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 (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]]).
+ 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 ([[sync/distribution-feeder-cables]]) and metering equipment ([[sync/electrical-service-entrance]]); 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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- 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
+- Service-entrance conductors ([[sync/distribution-feeder-cables]]) and metering equipment ([[sync/electrical-service-entrance]])
- Communications and data wiring (Category cabling, fiber optic)
- Instrumentation and control wiring below 50V (see [[sync/instrumentation-and-control-cable]]), and building automation system wiring (see [[sync/building-automation-system]])
…922 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.