Copper conductor XLPE Insulation PVC bedding galvanized steel tape armored PVC outer sheathed cables three cores

18/30(36)kv Three core copper conductors XLPE insulated to IEC 60502-2 steel tape armored cables. Cable Construction: 1. Copper conductor 2. Semiconductive conductor screen 3. XLPE insulation 4. Semiconductive Insualtion screen. 5. Copper tape screen 6. Fillers 7. Tape binder 8. Bedding 9. Galvanized steel tape armour 8. Outer sheath.

Conductor diameter(MAX)	KV	18/30(36)KV
Nominal area of conductor	mm 2	50	70	95	120	150	185	240	300	400
Conductor diameter(MAX)	mm	8.4	9.9	11.6	13	14.5	16.1	18.4	20.6	23.7
Weight of conductor(Approx)	Kg/Km	1281	1845	2558	3219	3954	4966	6526	8187	10428
Insulation thickness(Nominal)	mm	2.5	2.5	2.5	2.5	2.5	2.5	2.6	2.8	3
Separation sheath thickness	mm	1.3	1.4	1.4	1.5	1.6	1.6	1.7	1.8	2
Steel tape thickness(Nominal)	mm	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.8
Outersheath thickness(Nominal)	mm	2.4	2.5	2.7	2.8	2.9	3	3.2	3.4	3.7
Approximate overall diameter	mm	47.0	50.5	54.5	58.0	61.5	65.5	71.5	77.5	86.0
Approximate cable weight	Kg/Km	3650	4500	5590	6510	7690	9000	11210	14010	18330
Minimum bending radius of cable(during installation)	mm	560	604	652	692	736	781	853	928	1028
Maximum DC resistance of conductor at 20 degree	ohm/Km	0.387	0.268	0.193	0.153	0.124	0.0991	0.0754	0.0601	0.047
Approximate AC resistance of conductor at 90 degree	ohm/Km	0.493	0.343	0.247	0.196	0.159	0.128	0.099	0.080	0.064
Approximate reactance at 50Hertz	ohm/Km	0.11	0.10	0.10	0.09	0.09	0.09	0.09	0.08	0.08
Approximate impedance at 50Hertz	ohm/Km	0.5	0.36	0.26	0.22	0.18	0.15	0.13	0.12	0.1
Approximate capacitance of cable	uf/Km	0.34	0.38	0.43	0.47	0.51	0.56	0.61	0.63	0.65
Approx. charging current per phase at Uo=12KV and f=50HZ	mA/m	0.38	0.43	0.49	0.53	0.58	0.63	0.69	0.71	0.74
Sustained current ratings
1.Laid direct,ground temp.30 degree &g=1.2 degree  m/W,depth of laying=0.8m,laid in trefoil touching	A	187	227	267	303	338	383	436	481	534
2.Drawn into ducts,ground temp.30 degree &g=1.2 degree  m/W,depth of laying=0.8m,laid singly	A	161	191	227	258	294	329	378	418	472
3.Laid in air in trefoil touching,Ambient temp.35 degree	A	203	248	304	345	396	451	524	598	681
One second short circuit current rating of conductor	kA	7.15	10.01	13.60	17.20	21.50	26.50	34.30	42.90	57.20

33KV 3 core CU/XLPE/STA/PVC