IEEE 1584-2018
Table 7
Enclosure size correction factor coefficients
The arc flash tool reads the enclosure size correction for VCB, VCBB and HCB. VOA and HOA take no correction.
Verified: read against the printed standard, pages 28-30 (PDF 29-31). Checked 1 Oct 2026.
These are the values AmpSize encodes. No text of the standard is reproduced. Verify against the current standard.
3 rows
| Config | A | B | Typical | Shallow |
|---|---|---|---|---|
| VCB | 4 | 20 | -0.000302, 0.03441, 0.4325 | 0.002222, -0.02556, 0.6222 |
| VCBB | 10 | 24 | -0.000298, 0.032, 0.479 | -0.002778, 0.1194, -0.2778 |
| HCB | 10 | 22 | -0.000192, 0.01935, 0.6899 | -0.000556, 0.03722, 0.4778 |