42 lines
1.1 KiB
Markdown
42 lines
1.1 KiB
Markdown
---
|
|
id: 2026-02-12T09:49:56-05:00
|
|
aliases: []
|
|
title: 2026-02-12 09:49:56
|
|
tags:
|
|
- authorship/original
|
|
- destiny/permanent
|
|
- status/draft
|
|
- type/periodic/timestamped
|
|
- topic/construction/electrical
|
|
daily: "[[2026-02-12]]"
|
|
dg-publish: true
|
|
monthly: "[[2026-02]]"
|
|
quarterly: "[[2026-Q1]]"
|
|
weekly: "[[2026-W07]]"
|
|
yearly: "[[2026]]"
|
|
---
|
|
# 2026-02-12 09:49:56
|
|
|
|
### Interrupting Rating
|
|
|
|
* "short-circuit interrupting rating"
|
|
|
|
Applies to "Equipment intended to interrupt current".
|
|
|
|
[[nfpa-70_110_requirements#110.9 Interrupting Rating.|NEC 110.9 Interrupting Rating.]]
|
|
|
|
Maximum current that the equipment can interrupt without damage.
|
|
Measured in amperes, usually shown as kAIC.
|
|
|
|
### Short-Circuit Current Rating (SCCR)
|
|
|
|
* "withstand rating"
|
|
|
|
[[nfpa-70_110_requirements#110.10 Circuit Impedance, Short-Circuit Current Ratings, and Other Characteristics.|NEC 110.10 Circuit Impedance, Short-Circuit Current Ratings, and Other Characteristics.]]
|
|
|
|
Applies to **assemblies**: distribution equipment like switchboards, panelboards, switches, etc.
|
|
|
|
Maximum current that the equipment can withstand
|
|
in a short-circuit event without damage.
|
|
Measured in amperes, usually shown as kA.
|