---
title: Conductors and Cables
…133 unchanged lines
label: Default Conductor Material
type: radio
+drawing_ref: "conductor schedule"
options:
- "Copper (all circuits unless otherwise noted)"
- "Copper for branch circuits; aluminum permitted for feeders 1/0 AWG and larger"
− - "Per drawings — copper and aluminum as scheduled"
default: "Copper (all circuits unless otherwise noted)"
```
…97 unchanged lines
label: Standard Insulation Type — Conduit Wiring
type: radio
+drawing_ref: "circuit schedule"
options:
- "THHN/THWN-2, dual-rated, 90°C dry/wet, UL 83"
- "XHHW-2, 90°C dry/wet, UL 44"
− - "Per drawings — insulation type as scheduled by circuit"
default: "THHN/THWN-2, dual-rated, 90°C dry/wet, UL 83"
```
…177 unchanged lines
- "350 kcmil"
- "500 kcmil"
−default: "Per drawings"
+default: deferred
```
…77 unchanged lines
- "600 kcmil"
- "750 kcmil"
−default: "Per drawings"
+default: deferred
```
…72 unchanged lines
label: Phase Color Convention — 120/208V System
type: radio
+drawing_ref: "project color schedule"
options:
- "Black / Red / Blue — Phase A / B / C; White — Neutral (standard NEC industry convention)"
− - "Per project color schedule — submit for Engineer approval"
default: "Black / Red / Blue — Phase A / B / C; White — Neutral (standard NEC industry convention)"
```
…2 unchanged lines
label: Phase Color Convention — 277/480V System
type: radio
+drawing_ref: "project color schedule"
options:
- "Brown / Orange / Yellow — Phase A / B / C; Gray — Neutral (standard NEC industry convention)"
− - "Per project color schedule — submit for Engineer approval"
default: "Brown / Orange / Yellow — Phase A / B / C; Gray — Neutral (standard NEC industry convention)"
```
…379 unchanged lines
## Where insulation resistance test results during the warranty period reveal degradation from values recorded at acceptance, the Contractor shall investigate and shall demonstrate that the degradation is attributable to building conditions (moisture infiltration, chemical attack, elevated temperature) rather than workmanship defects before declining responsibility.