Low Voltage Panelboards

Revision 4 · SynC Standards Team — Specifier, SynC (SynC Platform Team / Platform Standards) ✓ Official · Jun 11, 2026 +5 −5

Migrate datasheet deferrals to drawing_ref + default: deferred
Showing changes from Rev 3 to Rev 4 in Low Voltage Panelboards.
Tag changes −AC Power−Electrical−Indoor−Low Voltage−Outdoor−Panelboards−Power Distribution−Single Phase−Three Phase
---
title: Low Voltage Panelboards
588 unchanged lines
- "4 spare single-pole spaces (10% spare minimum)"
- "20% spare spaces"
- "As indicated on panel schedule"
+drawing_ref: "panel schedule"
default: "4 spare single-pole spaces (10% spare minimum)"
```
59 unchanged lines
label: Branch Circuit Breaker Trip Ratings
type: text
drawing_ref: true
default: "Per panel schedule"
+drawing_ref: "panel schedule"
+default: deferred
```
45 unchanged lines
- "GFCI provided at point of use (GFCI receptacle or device, not at panelboard)"
- "Combination AFCI/GFCI breakers at panelboard (dual-function)"
- "Per panel schedule (circuit-by-circuit determination)"
default: "Per panel schedule (circuit-by-circuit determination)"
+drawing_ref: "panel schedule"
+default: deferred
```
446 unchanged lines
### Bus joint bolts shall be re-torqued at the first annual maintenance interval following energization, as thermal cycling during the first year of service may cause relaxation in bolted joints.

View current revision