VIR/TRS CABLES

CONSTRUCTION OF ELASTOMER / RUBBER CABLES AS PER IS: 9968 PT-I/II

S.No	No. of Cores	Colour of Cores	Numbers
1.	Single	Red, Black, White, Yellow & Blue	--
2.	Twin	Red & Black	1,2
3.	Three	Red, Yellow & Blue	1,2,3
4.	Four	Red, Yellow, Blue & Green	1,2,3,4
5.	Five	Red, Yellow, Blue, Black & Green	1,2,3,4,5

TECHNICAL DATA

Nominal Cross-Sectional Area Of Conductor	Nominal Thickness of Insulation	Nominal Thickness of Sheath				Maximum Overall Diameter				Maximum Resistance of Conductor at 20° c
		Single-Core	Twin-Core	Three-Core	Four-Core	Single-Core	Twin-Core	Three-Core	Four-Core	Plain Wires ohm/km	Tinned Wires ohm/km
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
mm²	mm	mm	mm	mm	mm	mm	mm	mm	mm
0.5	1.0	1.0	1.0	1.0	1.0	7.0	11.7	12.5	13.6	39.0	40.1
0.75	1.0	1.0	1.0	1.0	1.0	7.2	12.2	13.0	14.3	26.0	26.7
1	1.0	1.0	1.0	1.0	1.0	7.4	12.6	13.4	14.8	19.5	20.0
1.5	1.0	1.0	1.0	1.1	1.1	7.7	13.2	14.2	15.5	13.3	13.7
2.5	1.0	1.0	1.1	1.1	1.1	8.2	14.2	15.4	16.5	7.98	8.21
4	1.0	1.0	1.2	1.2	1.2	8.8	15.7	16.7	18.3	4.95	5.09

ELASTOMER SHEATHED FLEXIBLE CABLES

Nominal Cross-Sectional Area Of Conductor	Nominal Thickness Of Insulation	Nominal Thickness Of Sheath					Maximum Resistance Of Conductor At 20° c
		Single-Core	Twin-Core	Three-Core	Four-Core	Five-Core	Plain Wires ohm/km	Tinned Wires ohm/km
mm²	mm	mm	mm	mm	mm	mm
6	1.0	1.6	2.0	2.1	2.5	2.5	3.3000	3.3900
10	1.2	1.8	2.4	2.5	2.7	2.9	1.9100	1.9500
16	1.2	1.9	2.5	2.7	2.9	3.2	1.2000	1.2400
25	1.4	2.0	3.2	3.6	3.4	--	0.7800	0.7950
35	1.4	2.2	3.3	3.4	3.5	--	0.5540	0.5650
50	1.6	2.4	3.5	3.6	3.7	--	0.3860	0.3930
70	1.6	2.6	3.6	3.7	3.9	--	0.2720	0.2770
95	1.8	2.8	3.8	4.0	4.1	--	0.2060	0.2100
120	1.8	3.0	4.0	4.1	4.3	--	0.1610	0.1640
150	2.0	3.2	4.2	4.3	4.5	--	0.1290	0.1320
185	2.2	3.4	4.3	4.5	4.8	--	0.1060	0.1080
240	2.4	3.5	4.6	4.8	5.1	--	0.0801	0.0817
300	2.6	3.5	4.9	5.1	5.4	--	0.0641	0.0654
400	2.8	3.8	5.2	5.4	5.8	--	0.0486	0.0495
500	3.0	4.0	--	-	--	--	0.0384	0.0391
630	3.0	4.1	--	--	--	--	0.0287	0.0292

CURRENT CARRYING CAPACITY (AMPS) FOR MULTI CORE CABLES

Nominal Cross-Sectional Area Of Conductor	Nominal Diameter Of Wires	Approx Over All Dia Of Conductor	Max.Allowable Resistance At 20° C For Tinned Wires		Current Rating D.C. In Single Or Three Phase (A)	Approx Voltage Drop Per 10 Meter Run(Volts)
										Single Core	Multi Core
mm²	mm	mm	ohms/mm	ohms/mm	Amp	Volts
0.5	16/0.20	0.93	38.20	40.10	3	3.30
0.75	24/0.20	1.14	25.40	26.70	6	3.70
1.0	32/0.20	1.32	19.10	20.00	10	4.50
1.5	30/0.25	1.60	13.00	13.70	15	4.00
2.5	50/0.25	2.00	7.82	8.21	20	2.90
4.0	56/0.30	2.60	4.85	5.09	25	2.60

ELASTOMER INSULATED, SINGLE, TWIN-CORE AND THREE-CORE TEXTILE BRAIDED FLEXIBLE CORDS

Nominal Cross-Sectional Area Of Conductor	Nominal Thickness Of Insulation	Overall Diameter Of Braided Core mm	Overall Diameter Of Braided Core mm	Overall Diameter Of Braided Core mm	Maximum Resistance Of Conductor At 20°C
					Plain Wires ohm/km	Tinned Wires ohm/km
		Single Core	Two Core	Three Core
mm²	mm	mm	mm	mm
0.5	1.0	4.9	8.3	9.0	39.0	40.1
0.75	1.0	5.1	8.7	9.5	26.0	26.7
1	1.0	5.3	9.1	9.9	19.5	20.0
1.5	1.0	5.6	9.7	10.5	13.3	13.7
2.5	1.0	6.0	10.5	11.3	7.98	8.21
4	1.0	-	11.7	12.6	4.95	5.09

CURRENT CARRYING CAPACITY (AMPS) FOR MULTI CORE CABLES

Nominal Cross Sectional Area Of Conductor	Nominal No. And Diameter Of Wire	Approx Over All Dia Of Conductor	Max. Resistance At 20°C	Current Rating GP Elastomer Insulated (VIR)		Current Rating H.R. EPR /- Cables		Voltage Drop Three Phase
			Multi Core/ Single Core	DC or Single Phase   AC	Three Phase	DC or Single phase  AC	Three  Phase	DC
(mm2)	(No./mm)	(mm)	(ohm/km)	(A)	(A)	(A)	(A)	(mV)
4	56/0.30	2.60	5.09	33	28	40	31	11
6	84/0.30	3.30	3.39	42	36	51	44	7.3
10	80/0.40	4.20	1.95	57	49	70	60	4.2
16	126/0.40	5.70	1.24	76	66	93	81	2.7
25	196/0.40	7.10	0.795	100	85	120	105	1.7
35	276/0.40	8.50	0.565	120	100	145	125	1.2
50	396/0.40	10.30	0.393	150	130	185	160	0.85
70	360/0.50	12.40	0.277	180	160	225	195	0.80
95	475/0.50	14.50	0.210	220	190	270	235	0.45
120	608/0.50	16.00	0.164	250	220	306	270	0.36
150	756/0.50	18.00	0.132	290	250	355	306	0.29
185	925/0.50	20.00	0.108	330	285	405	350	0.23
240	1221/0.50	23.00	0.0817	390	330	465	405	0.18
300	1525/0.50	26.00	0.0654	435	385	530	470	0.14
400	2013/0.50	30.50	0.0495	520	432	630	538	0.11
500	1769/0.60	33.00	0.0391	590	526	720	642	0.09
630	2230/0.60	37.00	0.0292	600	596	830	728	0.07