Current Rating & Voltage Drop

Current rating for voltage drop of cables given below are based on the IEEE wiring regulations 17th edition. For detailed information, reference should be made to Appendix 4 of above IEEE edition.

Current Carrying Capacity(Amps)

Single Core PVC Insulated Non- Sheathed Cables - Cables in conduit on a wall or ceiling or in trunking

Nominal Area of conductor	2 cables single phase ac or dc		3 or 4 cables three phase ac
sqmm	at 70°C	at 85°C	at 70°C	at 85°C
1	13.5	16	12	14
1.5	17.5	21	15.5	18
2.5	24	28	21	25
4	32	38	28	33
6	41	48	36	42
10	57	67	50	59
16	76	87	68	78
25	101	116	89	102
35	125	143	110	126
50	151	173	134	154
70	192	220	171	196
95	232	266	207	237
120	269	309	239	274
150	300	342	262	298
185	341	390	296	339
240	400	458	346	396
300	458	525	394	452
400	546	626	467	535
500	626	712	533	606
630	720	816	611	693

Installation Conditions for above Rating:

Maximium Conductor Temp. for PVC Type 5 Insulation 85°C

Maximium Conductor Temp. for PVC TI1/Type A Insulation 70°C

Ambient Air Temperature 30°C