AS/NZS 3008.1.1:2025
Table 3.34
Correction factors for single‑core circuits on trays, ladders, racks and cleats in air
On the 2025 edition, the cable size, correction factors and DC cable size tools read this table for single‑core circuits on a tray, a ladder, a rack or cleats. The values print the same as in 2017.
Đã xác minh: đối chiếu với tiêu chuẩn in, trang 74. Đã kiểm tra 27 Sept 2026.
Đơn vị: Tiers count, Count circuits per tier or row
Đây là các giá trị mà AmpSize mã hóa. Không sao chép nội dung tiêu chuẩn. Hãy đối chiếu với tiêu chuẩn hiện hành.
22 hàng
| Item | Installation | Spacing | Tiers (count) | Factors |
|---|---|---|---|---|
| 1 | unperforated-trays | touching | 1 | 0.95, 0.85, 0.84 |
| 2 | unperforated-trays | touching | 2 | 0.92, 0.83, 0.79 |
| 3 | unperforated-trays | touching | 3 | 0.91, 0.82, 0.76 |
| 4 | perforated-trays | touching | 1 | 0.97, 0.89, 0.87 |
| 5 | perforated-trays | touching | 2 | 0.94, 0.85, 0.81 |
| 6 | perforated-trays | touching | 3 | 0.93, 0.84, 0.79 |
| 7 | ladder-supports-racks-cleats | touching | 1 | 1, 0.95, 0.94 |
| 8 | ladder-supports-racks-cleats | touching | 2 | 0.95, 0.9, 0.88 |
| 9 | ladder-supports-racks-cleats | touching | 3 | 0.95, 0.89, 0.85 |
| 10 | vertical-perforated-trays | touching | 1 | 0.94, 0.85, — |
| 11 | vertical-perforated-trays | touching | 2 | 0.92, 0.83, — |
| 12 | unperforated-trays | spaced | 1 | 0.95, 0.95, 0.94 |
| 13 | unperforated-trays | spaced | 2 | 0.92, 0.91, 0.87 |
| 14 | unperforated-trays | spaced | 3 | 0.91, 0.9, 0.85 |
| 15 | perforated-trays | spaced | 1 | 0.97, 0.97, 0.96 |
| 16 | perforated-trays | spaced | 2 | 0.94, 0.93, 0.89 |
| 17 | perforated-trays | spaced | 3 | 0.93, 0.92, 0.86 |
| 18 | ladder-supports | spaced | 1 | 1, 1, 1 |
| 19 | ladder-supports | spaced | 2 | 0.95, 0.95, 0.93 |
| 20 | ladder-supports | spaced | 3 | 0.95, 0.94, 0.9 |
| 21 | vertical-perforated-trays | spaced | 1 | 1, 0.91, 0.89 |
| 22 | vertical-perforated-trays | spaced | 2 | 1, 0.9, 0.86 |