AS/NZS 3008.1.2:2017
Table 24
Grouping factors for multicore cables on trays, ladder supports, racks and cleats in air
The cable size and correction factors tools read the factor for multicore cables on a tray, a ladder, a rack or cleats. The factor depends on the support, the tiers, and whether the cables touch.
تم التحقق: مقروء مقابل المعيار المطبوع، الصفحات 82. تم التحقق في 26 Sept 2026.
الوحدات: Tiers count, Count cables per tier or row
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22 صفوف
| Item | Installation | Spacing | Tiers (count) | Factors |
|---|---|---|---|---|
| 1 | unperforated-trays | touching | 1 | 0.97, 0.85, 0.78, 0.75, 0.71, 0.68 |
| 2 | unperforated-trays | touching | 2 | 0.97, 0.84, 0.76, 0.73, 0.68, 0.63 |
| 3 | unperforated-trays | touching | 3 | 0.97, 0.83, 0.75, 0.72, 0.66, 0.61 |
| 4 | unperforated-trays | spaced | 1 | 0.97, 0.96, 0.94, 0.93, 0.9, — |
| 5 | unperforated-trays | spaced | 2 | 0.97, 0.95, 0.92, 0.9, 0.86, — |
| 6 | unperforated-trays | spaced | 3 | 0.97, 0.94, 0.91, 0.89, 0.84, — |
| 7 | perforated-trays | touching | 1 | 1, 0.88, 0.82, 0.78, 0.76, 0.73 |
| 8 | perforated-trays | touching | 2 | 1, 0.87, 0.8, 0.76, 0.73, 0.68 |
| 9 | perforated-trays | touching | 3 | 1, 0.86, 0.79, 0.75, 0.71, 0.66 |
| 10 | perforated-trays | spaced | 1 | 1, 1, 0.98, 0.95, 0.91, — |
| 11 | perforated-trays | spaced | 2 | 1, 0.99, 0.96, 0.92, 0.87, — |
| 12 | perforated-trays | spaced | 3 | 1, 0.98, 0.95, 0.91, 0.85, — |
| 13 | ladder-supports-racks-cleats | touching | 1 | 1, 0.87, 0.82, 0.8, 0.79, 0.78 |
| 14 | ladder-supports-racks-cleats | touching | 2 | 1, 0.86, 0.8, 0.78, 0.76, 0.73 |
| 15 | ladder-supports-racks-cleats | touching | 3 | 1, 0.85, 0.79, 0.76, 0.73, 0.7 |
| 16 | ladder-supports-racks-cleats | spaced | 1 | 1, 1, 1, 1, 1, — |
| 17 | ladder-supports-racks-cleats | spaced | 2 | 1, 0.99, 0.98, 0.97, 0.96, — |
| 18 | ladder-supports-racks-cleats | spaced | 3 | 1, 0.98, 0.97, 0.96, 0.93, — |
| 19 | vertical-perforated-trays | touching | 1 | 1, 0.88, 0.82, 0.77, 0.73, 0.72 |
| 20 | vertical-perforated-trays | touching | 2 | 1, 0.88, 0.81, 0.76, 0.72, 0.7 |
| 21 | vertical-perforated-trays | spaced | 1 | 1, 0.91, 0.89, 0.88, 0.87, — |
| 22 | vertical-perforated-trays | spaced | 2 | 1, 0.91, 0.88, 0.87, 0.86, — |