AS/NZS 1158.1.2:2010
Table 14.4
Typical luminaire maintenance factors
The lighting lumen method tool reads a luminaire maintenance factor here. You choose the lamp chamber class, the pollution category and the cleaning interval. The tool multiplies that factor by the lamp lumen maintenance factor you type, as the table leaves lamp depreciation out. The table is for road lighting, so check the factor for an interior.
Verified: read against the printed standard, pages 63. Checked 1 Oct 2026.
Units: Months month, Factor
These are the values AmpSize encodes. No text of the standard is reproduced. Verify against the current standard.
30 rows
| Ip | Pollution | Months (month) | Factor |
|---|---|---|---|
| IP54 | high | 12 | 0.89 |
| IP54 | high | 18 | 0.87 |
| IP54 | high | 24 | 0.84 |
| IP54 | high | 36 | 0.76 |
| IP54 | high | 48 | 0.66 |
| IP54 | medium | 12 | 0.9 |
| IP54 | medium | 18 | 0.88 |
| IP54 | medium | 24 | 0.86 |
| IP54 | medium | 36 | 0.82 |
| IP54 | medium | 48 | 0.76 |
| IP54 | low | 12 | 0.92 |
| IP54 | low | 18 | 0.91 |
| IP54 | low | 24 | 0.9 |
| IP54 | low | 36 | 0.88 |
| IP54 | low | 48 | 0.86 |
| IP6X | high | 12 | 0.91 |
| IP6X | high | 18 | 0.9 |
| IP6X | high | 24 | 0.88 |
| IP6X | high | 36 | 0.83 |
| IP6X | high | 48 | 0.75 |
| IP6X | medium | 12 | 0.92 |
| IP6X | medium | 18 | 0.91 |
| IP6X | medium | 24 | 0.89 |
| IP6X | medium | 36 | 0.87 |
| IP6X | medium | 48 | 0.84 |
| IP6X | low | 12 | 0.93 |
| IP6X | low | 18 | 0.92 |
| IP6X | low | 24 | 0.91 |
| IP6X | low | 36 | 0.9 |
| IP6X | low | 48 | 0.89 |