1100 Volts Twin Core Unarmoured Cables
(Aluminium Conductor) Type 'AYY' to IS:1554(I) - 1988
Sl.			Normal Cross-Sectional Area of Conductor in mm2
No.	Description	Unit	1.5	2.5	4	6	10	16	25	35	50	70	95	120	150	185	240	300	400
	Constructional Details
	Conductor (solid)
1	Minimum number of wires	nos.	1	1	1	1	1	6	6	6	6	12	15	15	15	30	30	30	53
2	Shape				Circular  Solid			Compacted							shaped
	Conductor (stranded)
	Minimum number of wires	nos.	3	3	3	3	7	6	6	6	6	12	15	15	15	30	30	30	53
	Shape				Circular  Stranded			Compacted							shaped
	Insulation
3	Type												PVC Compound Type A to IS:5831
4	Nominal thickness	mm	0.8	0.9	1.0	1.0	1.0	1.0	1.2	1.2	1.4	1.4	1.6	1.6	1.8	2	2.2	2.4	2.6
5	Colour scheme for identification Inner & Outer											Red & Black
	sheath  (Applied in one operation)
	Dia over laid up core				9.45	10.87	11.64	11.03	13.55	15.03	17.78	19.91	23.18	25.13	28.40	31.33	35.14	39.12	44.15
	Dia over inner sheath				10.45	11.87	12.62	12.03	14.55	16.03	18.78	21.11	24.38	26.53	29.80	32.73	36.54	41.12	46.15
6	Type												PVC Compound TypeST1 to IS:5831
7	Colour												Black
8	Minimum thickness of inner sheath		0.30	0.30	0.30	0.30	0.30	0.30	0.30	0.30	0.30	0.30	0.40	0.40	0.40	0.50	0.50	0.60	0.70
9	Nominal thickness of outer sheath		1.80	1.80	1.80	1.80	1.80	1.80	2.00	2.00	2.00	2.00	2.00	2.00	2.40	2.40	2.60	2.80	3.20
10	Approximate overall diameter of CBL	mm			14.15	15.57	16.34	15.63	18.15	29.63	22.38	24.71	27.98	30.53	33.80	36.73	40.54	45.12	50.55
	ELECTRICAL CHARECTERSTICS
11	Resistance of conductor per
	1000m length of completed cable
	a) Maximum d.c. resistance
	at 20 Deg. C.	ohm	18.1	12.1	7.41	4.61	3.08	1.91	1.20	0.868	0.641	0.443	0.320	0.253	0.206	0.164	0.125	0.1	0.0778
	b) a.c. resistance at 70 Deg. C	ohm	21.72	14.52	8.89	5.53	3.70	2.29	1.44	1.042	0.77	0.532	0.385	0.304	0.248	0.198	0.152	0.122	0.0962
12	Continuous current rating (a.c.) of
	cables under standard conditions
	i) When laid direct in ground	amps	18	25	32	40	55	70	90	110	135	160	190	210	240	275	320	355	385
	ii) When laid in ducts	amps	16	21	27	34	45	58	76	92	115	140	170	190	210	240	275	305	345
	iii)When laid in air	amps	16	21	27	35	47	58	78	99	125	150	185	210	240	275	325	365	420
13	Reactance per 1000m length of
	cable at 50 Hz	ohm	0.092	0.087	0.081	0.073	0.064	0.055	0.054	0.05	0.05	0.046	0.043	0.042	0.042	0.042	0.041	0.040	0.040
14	Capacitance between conductors per 1000m	micro
	length of cable	farad	0.113	0.12	0.13	0.14	0.16	0.18	0.18	0.2	0.2	0.21	0.22	0.23	0.23	0.23	0.23	0.23	0.24
15	Minimum volume resistivity
	of PVC insulation	cm											1 x 10 13 at 27 Deg C and 1 x 10 10 at 70 Deg C
16	Maximum permissible shortcircuit	kilo
	current for duration of one sencond	amps	0.114	0.190	0.304	0.456	0.760	1.216	1.900	2.660	3.800	5.320	7.220	9.120	11.400	14.060	18.240	22.800	30.400
17	Voltage drop per 1000m length of
	cable (assuming  cable used on single phase
	a.c system)
	a) When laid direct in ground	volts	782	726	570	442	408	320	260	228	208	170	148	128	120	112	100	92	80
	b) When laid in ducts	volts	696	610	480	376	334	266	218	192	178	150	132	116	106	98	86	78	72
	c)When laid in air	volts	696	610	480	388	348	270	224	206	192	162	144	128	120	112	102	94	88
	GENERAL  :
18	Approximate net weight per 1000 m	kg	140	175	234	268	325	322	435	519	661	788	1021	1244	1497	1900	2247	2786	3497
	length of finished cable
19	Stranded length of cable (subject to	m											500					250	250
	a manufacturing tolerance +/-5%)
20	Drum Dimensions-
	a) Approximate overall height	mm	840	840	840	840	940	1040	1040	1140	1250	1250	1450	1450	1550	1650	1650	1550	1650
	b) Approximate outer width	mm	515	515	665	665	690	715	715	715	855	855	855	855	910	1130	1130	910	1130
21	Approximate gross weight of drum	kg	120	135	165	185	230	295	300	355	460	540	725	830	1025	1260	1535	1010	1290
22	Minimum bending radius for laying										12 x Overall Diameter of cable
	of cable
23	Recommended pulling force:
	a) When conductor pulled by pulling
	eye	N									30 x Total Conductor Area in mm2
	b) When cable pulled with stocking	N									5 x D2 where D is the Overall Diameter of cable in mm2
						STRANDED CONDUCTOR IS ALSO PERMISSIBLE IN THESE SIZES