LT AB (Aerial Bunch) 1100V Cable

Applicable standard

IS 14255:1995

Salient Features

Stranded Compact Aluminium Conductor
High-density Polyethylene (HDPE) or XLPE Insulation
Messenger Wire of Aluminium Alloy
Anti-theft and highly safe overhead system

Technical Data

Conductor MaterialStranded Aluminium (Class 2)

InsulationXLPE / Weather Resistant HDPE

Messenger WireStandard Aluminium Alloy

Voltage GradeUp to 1100 V

Temperature Range-15°C to +90°C

ApplicationOverhead distribution power transmission

Construction

Phase conductor

Stranded Circular or compacted aluminium Class-2 conductor to IS 8130
XLPE (Cross linked polyethylene) Insulation

Messenger conductor

Stranded circular or compacted heat-treated
aluminium-magnesium alloy wire to IS 398 (part 4)

Streetlight conductor

Stranded aluminium conductor Class-2 to IS 8130
XLPE (Cross linked polyethylene) Insulation

Core Colour

Black (UV Resistant Insulation) with Ribs.

Application

Aerial Bunched Cables (ABC) are designed for safe and reliable overhead power distribution. Their insulated bundled construction minimizes power theft, short circuits, and environmental damage while ensuring reduced maintenance and enhanced operational safety. Ideal for urban, rural, and residential electrification projects.

Complete Specification Data

Phase Conductor + Messenger (Bare)

Construction n x mm²	Insulation thickness mm	Phase conductor Overall diameter mm	messenger Overall diameter mm	Minimum Breaking load of messenger
1 x16 +1 x 25	1.20	7.53	6.45	7
3 x16 +1 x 25	1.20	7.53	6.45	7
1 x25 +1 x 25	1.20	8.85	6.45	7
3 x25 +1 x 25	1.20	8.85	6.45	7
1 x35 +1 x 25	1.20	10.00	6.45	7
3 x35 +1 x 25	1.20	10.00	6.45	7
1 x50 +1 x 35	1.50	12.05	7.60	9.8
3 x50 +1 x 35	1.50	12.05	7.60	9.8
1 x70 +1 x 50	1.50	13.73	9.05	14
3 x70 +1 x 50	1.50	13.73	9.05	14
1 x95 +1 x 70	1.50	15.52	10.77	19.7
3 x95 +1 x 70	1.50	15.52	10.77	19.7

Phase Conductor + Messenger (Bare) + Street Light

Construction n x mm²	Insulation thickness mm		Phase conductor Overall diameter mm	messenger Overall diameter mm	Street light Overall diameter mm	Minimum Breaking load of messenger
Construction n x mm²	Phase mm	Street light	Phase conductor Overall diameter mm	messenger Overall diameter mm	Street light Overall diameter mm	Minimum Breaking load of messenger
3 x16 +1 x 25+1 x 16	1.2	1.2	7.5	6.5	7.5	7.0
3 x25 +1 x 25+1 x 16	1.2	1.2	8.9	6.5	7.5	7.0
3 x35 +1 x 25+1 x 16	1.2	1.2	10.0	6.5	7.5	7.0
3 x50 +1 x 35+1 x 16	1.5	1.2	12.0	7.6	7.5	9.8
3 x70 +1 x 50+1 x 16	1.5	1.2	13.7	9.0	7.5	14.0
3 x95 +1 x 70+1 x 16	1.5	1.2	15.5	10.8	7.5	19.7

Current carrying capacity and maximum DC conductor resistance.

Nominal cross sectional area mm²	Maximum DC conductor resistance at 20°C		Reactance Ω/km	Current carrying capacity in Air @ 40°C Amp.
Nominal cross sectional area mm²	Phase Ω/km	Messenger Ω/km	Reactance Ω/km	Current carrying capacity in Air @ 40°C Amp.
16	1.91	1.38	0.0834	72
25	1.2	1.38	0.0791	98
35	0.868	1.38	0.0765	119
50	0.641	0.986	0.0772	145
70	0.443	0.689	0.0748	185
95	0.32	0.492	0.0728	235

De-Rating Factor

Air-Temperature	25°C	30°C	35°C	40°C	45°C	50°C	55°C	60°C
De-rating factor	1.14	1.1	1.05	1	0.95	0.89	0.84	0.77