AS/NZS 3008.1.1:2025

Table 4.6(A), 4.6(B), 4.8(A), 4.8(B)

d.c. resistance at the maximum conductor temperature

The d.c. resistance of each size at its maximum conductor temperature. The d.c. mode of the voltage drop tool works the drop as 2 × I × R × L from it. The DC cable size tool works the drop from the d.c. mV/A.m instead.

Verified: read against the printed standard, pages 104–105, 108–109. Checked 27 Sept 2026.

Units: R ohm/km

These are the values AmpSize encodes. No text of the standard is reproduced. Verify against the current standard.

Back to its card on the AS/NZS 3008.1.1:2025 page

Find a row

20 rows

Table 4.6(A), 4.6(B), 4.8(A), 4.8(B), d.c. resistance at the maximum conductor temperature
Size	Single core cu 75	Single core cu 90	Single core al 75	Single core al 90	Multicore cu 75	Multicore cu 90	Multicore al 75	Multicore al 90
1	25.8	27	—	—	25.8	27	—	—
1.5	16.5	17.3	—	—	16.5	17.3	—	—
2.5	9.01	9.45	—	—	9.01	9.45	—	—
4	5.61	5.88	—	—	5.61	5.88	—	—
6	3.75	3.93	—	—	3.75	3.93	—	—
10	2.23	2.33	—	—	2.23	2.33	—	—
16	1.4	1.47	2.33	2.45	1.4	1.47	2.33	2.45
25	0.884	0.927	1.47	1.54	0.884	0.927	1.47	1.54
35	0.637	0.668	1.06	1.11	0.637	0.668	1.06	1.11
50	0.471	0.493	0.783	0.822	0.471	0.493	0.783	0.822
70	0.326	0.342	0.541	0.568	0.326	0.342	0.541	0.568
95	0.235	0.246	0.391	0.41	0.235	0.246	0.391	0.41
120	0.186	0.195	0.309	0.324	0.186	0.195	0.309	0.324
150	0.151	0.158	0.252	0.264	0.151	0.158	0.252	0.264
185	0.121	0.126	0.2	0.21	0.121	0.126	0.2	0.21
240	0.0917	0.0961	0.153	0.16	0.0917	0.0961	0.153	0.16
300	0.0731	0.0766	0.122	0.128	0.0731	0.0766	0.122	0.128
400	0.0572	0.0599	0.095	0.0997	0.0572	0.0599	0.095	0.0997
500	0.0445	0.0467	0.0739	0.0776	0.0454	0.0476	0.0754	0.0791
630	0.0344	0.0361	0.0573	0.0601	—	—	—	—

Cables

Protection

Loads

Power

Solar

Safety

Earthing

Testing

Fire

Regulatory

Table 4.6(A), 4.6(B), 4.8(A), 4.8(B)

Tools that read it (2)

Guides and learn pages that cite it (2)