Arc Flash Parameters: mcc
IEEE 1584-2018 arc flash calculation parameters by equipment class and voltage class. Includes electrode gap (mm), working distance (inches), enclosure dimensions, and electrode configuration for switchgear, MCC, panelboard, and cable junction equipment.
| equipment class | voltage class | electrode config | enclosure depth mm (mm) | enclosure height mm (mm) | enclosure width mm (mm) | gap mm (mm) | insulation level pct (%) | notes | working distance in (in) | working distance mm (mm) |
|---|---|---|---|---|---|---|---|---|---|---|
| mcc | 15KV | VCB | 914 | 914 | 914 | 152 | 100 | 15kV motor control center; open-type | 36 | 914 |
| mcc | 208V | HCB | 610 | 356 | 305 | 25 | 100 | Low-voltage MCC at 208V; shallow/deep same working distance | 18 | 457 |
| mcc | 208V_DEEP | HCB | 610 | 356 | 305 | 25 | 100 | Low-voltage MCC 208V deep-compartment (depth > 203.2mm); parameters identical to 480V deep MCC per IEEE 1584-2018 §4.5.3 | 18 | 457 |
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