Bare Conductors

GAP — Gap Type Aluminum Conductor Steel Reinforced Gap Conductor

Aluminium-Zirconium wires (Type-AT3 or AT-1), concentrically stranded over a steel core maintaing gap between the Steel core and…
Basic design to：

Application

High Temperature Thermal Resistant Alloy Conductor : Aluminum-Zirconium wires (Type-AT1 or AT3), concentrically stranded over a steel core having a small gap between the Steel core & thermal-resistant aluminum alloy layer. These combination offers best Mechanical as well as Electrical Characteristics. Extra High Strength Galvanized Steel (EST); or aluminum-claded Extra High Strength Steel (AW). Additional corrosion protection is achieved as High Temperature Grease is applied in Between GAP of Conductor.

Standard

Basic design to：

Thermal-resistant aluminium alloy wires (Type-AT3 or AT1) for overhead line conductor as per IEC 62004

Concentric lay stranded overhead electrical conductors IEC 61089, IEC 62420
Zinc-coated steel wires for stranded conductors IEC 888, ASTM B957 & more
Zinc–5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire EN 50540, ASTM B802, ASTM B803 or ASTM B958.
Aluminium Clad Steel Wires, IEC 61232, ASTM B415, EN 50540 & More

Construction

Aluminium-Zirconium wires (Type-AT3 or AT-1), concentrically stranded over a steel core maintaing gap between the Steel core and first Aluminium Layer.

Features:

These can operate upto 210°C with specified strength loss,
Can carry 100~150% more current as that of ACSR of the same size.
For uprating lines, no modifications or reinforcement is required to the existing towers
Limiting the sag increase with the increase of the temperature by the thermal expansion coefficient above knee-point related to the steel core

Construction Parameters

GTACSR & GZTACSR

Conductor Size	Stranding				Cross-Sectional Area			Diameter of Complete Conductor	Weight			Rated Strength		DCResistance @20°C
	No. of Wires		Wire diameter		TAL	Steel	Total		TAL	Steel	Total with Grease	Extra High Strength	Ultra High Strength
	TAL	Steel	TAL	Steel	TAL	Steel	Total		TAL	Steel	Total with Grease	Extra High Strength	Ultra High Strength
(mm²)	(No.)	(No.)	(mm)	(mm)	(mm²)	(mm²)	(mm²)	(mm)	(Kg/Km)	(Kg/Km)	(Kg/Km)	(KN)	(KN)	(Ω/Km)
175	8/12	7	3.35 (TW)	2.10	176.20	24.25	200.45	17.50	486.98	189.44	691.42	66.14	66.87	0.1668
190	12/16	7	2.92 (TW)	2.30	187.30	29.08	216.38	18.20	517.66	227.24	761.90	74.44	75.46	0.1569
195	20/12	7	2.40(R) 2.88(TW)	2.20	168.80	26.61	195.41	18.06	466.53	207.91	690.44	69.51	70.31	0.1741
218	18/12	7	2.78(R) 2.94(TW)	2.25	190.50	27.83	218.33	19.10	526.51	217.47	759.98	74.47	75.31	0.1542
240	8/12	7	4.02 (TW)	2.40	253.40	31.67	285.07	20.60	700.35	247.43	964.78	88.34	89.45	0.1159
248	12/8	7	3.71(TW)	2.40	216.12	31.67	247.79	19.40	597.32	247.43	862.75	83.00	84.11	0.1360
287	18/12	7	3.15(R) 3.43(TW)	2.55	251.00	35.75	286.75	21.77	693.72	279.33	993.04	94.85	96.10	0.1171
287	20/12	7	2.90(R) 3.55(TW)	2.55	251.00	35.75	286.75	21.77	693.72	279.33	993.04	95.33	96.58	0.1171
310	16/12	7	3.90(R) 3.69(TW)	2.80	319.40	43.10	362.50	24.40	882.76	336.78	1241.54	116.10	117.60	0.0920
400	18/12	7	3.90(R) 4.45(TW)	2.80	401.40	43.10	444.50	26.90	1109.40	336.78	1468.18	129.16	130.67	0.0732
410	14/12	7	4.90(R) 3.99(TW)	3.00	414.00	49.48	463.48	27.60	1144.22	386.61	1554.83	138.95	140.68	0.0710
439	15/12	7	4.50(R) 4.04(TW)	2.90	392.50	46.24	438.74	26.84	1084.80	361.27	1469.07	132.44	134.06	0.0749
462	14/12	7	4.90(R) 3.99(TW)	2.95	414.30	47.84	462.14	27.60	1145.05	373.83	1542.88	136.47	138.14	0.0709
540	24/14/10	7	3.55(R) 3.98(TW)	3.10	536.20	52.83	589.03	31.30	1483.12	412.81	1920.93	164.15	166.00	0.0548
620	16/12/12	7	4.80(TW) 4.75(TW) 3.47(TW)	3.20	615.70	56.30	672.00	31.50	1703.01	439.88	2168.89	177.96	179.93	0.0478

GTACSR/AW & GZTACSR/AW

Conductor Size	Cross-Sectional Area			Stranding				Diameter of Complete Conductor	Weight			Rated Strength		DC Resistance @20°C
	STAL	Steel	Total	No. of STAL Wires	No. of STAL Layers	No. of Steel Wires	Dia. of Steel Wires		STAL	Steel	Total	High Strength	Extra High Strength
	STAL	Steel	Total	No. of STAL Wires	No. of STAL Layers	No. of Steel Wires	Dia. of Steel Wires		STAL	Steel	Total	High Strength	Extra High Strength
(mm²)	(mm²)	(mm²)	(mm²)	(No.)	(No.)	(No.)	(mm)	(mm)	(Kg/Km)	(Kg/Km)	(Kg/Km)	(KN)	(KN)	(Ω/Km)
175	8/12	7	3.35 (TW)	2.10	176.20	24.25	200.45	17.50	486.98	160.46	647.44	57.65	62.26	0.1593
190	12/16	7	2.92 (TW)	2.30	187.30	29.08	216.38	18.20	517.66	192.48	710.14	65.28	69.93	0.1490
195	20/12	7	2.40(R) 2.88(TW)	2.20	168.80	26.61	195.41	18.06	466.53	176.11	642.64	60.20	65.25	0.1652
218	18/12	7	2.78(R) 2.94(TW)	2.25	190.50	27.83	218.33	19.10	526.51	184.21	710.72	64.73	70.02	0.1470
240	8/12	7	4.02 (TW)	2.40	253.40	31.67	285.07	20.60	700.35	209.59	909.94	78.36	83.43	0.1112
248	12/8	7	3.71(TW)	2.40	216.12	31.67	247.79	19.40	597.32	209.59	806.91	73.03	78.09	0.1295
287	18/12	7	3.15(R) 3.43(TW)	2.55	251.00	35.75	286.75	21.77	693.72	236.60	930.32	83.59	89.31	0.1117
287	20/12	7	2.90(R) 3.55(TW)	2.55	251.00	35.75	286.75	21.77	693.72	26.60	720.32	84.07	89.79	0.1117
310	16/12	7	3.90(R) 3.69(TW)	2.80	319.40	43.10	362.50	24.40	882.76	285.27	1168.03	102.52	109.41	0.0880
400	18/12	7	3.90(R) 4.45(TW)	2.80	401.40	43.10	444.50	26.90	1109.40	285.27	1394.67	115.59	122.48	0.0706
410	14/12	7	4.90(R) 3.99(TW)	3.00	414.00	49.48	463.48	27.60	1144.22	327.48	1471.70	123.36	131.28	0.0682
439	15/12	7	4.50(R) 4.04(TW)	2.90	392.50	46.24	438.74	26.84	1084.80	306.00	1390.80	117.87	125.27	0.0720
462	14/12	7	4.90(R) 3.99(TW)	2.95	414.30	47.84	462.14	27.60	1145.05	316.65	1461.70	121.40	129.05	0.0682
540	24/14/10	7	3.55(R) 3.98(TW)	3.10	536.20	52.83	589.03	31.30	1483.12	349.67	1832.79	149.36	156.23	0.0536
620	16/12/12	7	4.80(TW) 4.75(TW) 3.47(TW)	3.20	615.70	56.30	672.00	31.50	1703.01	372.60	2075.61	162.19	169.51	0.0467

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