gtp acsr zebra conductor
DESCRIPTION
for HimachalTRANSCRIPT
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GUARANTEED TECHNICAL PARTICULARS FOR ACSR ZEBRA CONDUCTOR
S.No. Particulars Unit Standard Value offered
1 Manufacturer's Name and Address
(a) E.C.Grade Aluminium Rod/Ingots BALCO,NALCO,HINDALCO, any other ISI
manufacturer
(b) High Tensile Galvanized Steel Wire Hulas Wires,Aarti Steels, MLHL, any other ISI
manufacturer
(c) Complete Conductor Mahavir Transmission Udyog Pvt. Ltd. A11 – 13 S, Industrial Estate, Vikasnagar‐
248198, Dehradun (Ukd.)
2 Indian Standards (a) For Conductor IS :398(Part‐II) :1996 IS :398(Part‐II) :1996 (b) For Drum IS :1778 :1980 IS :1778 :1980
3 E.C.Grade Aluminium Rod
(a) Indian Standards IS :5484 : 1978 IS :5484 : 1978 (b) Composition % Purity 99.5(Min.) Purity 99.5(Min.) 4 High Tensile Galvanized Steel Wire (a) Indian Standards IS :4826 :1979 IS :4826 :1979 (b) Chemical Composition % C=0.50 to 0.85 C=0.50 to 0.85 P=0.035 (Max.) P=0.035 (Max.) S=0.045 (Max.) S=0.045 (Max.) Si=0.10 to 0.35 Si=0.10 to 0.35 Mn=0.50 to 1.10 Mn=0.50 to 1.10 5 Galvanizing (a) Indian Standards IS :4826 :1979 IS :4826 :1979 (b) Purity of Zinc % 99.95 (Min) 99.95 (Min) (c) Process of Galvanizing Hot Dip Hot Dip
6 Aluminium Strands
(a) Diameter i) Nominal mm 3.18 3.18 ii) Maximum mm 3.21 3.21 iii) Minimum mm 3.15 3.15
(b) Cross sectional area of nominal diameter wire
mm2 7.942 7.942
(c) Minimum Weight Kg/Km 21.47 21.47 (d) Breaking Load(Min) i)Before stranding KN 1.29 1.29 ii)After stranding KN 1.23 1.23 (e) Electrical Resistance at 20°C Ohm/Km 3.626 3.626
(f) Co‐efficient of linear expansion per oC 23.0 x 10‐6 23.0 x 10‐6
(g) Modulus of elasticity Kg./cm2 0.70 x 106 0.70 x 106
(j) Minimum UTS of Strand KN./mm2 0.163 0.163
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S.No. Particulars Unit Standard Value offered
7 Steel Strands
(a) Diameter i) Nominal mm 3.18 3.18 ii) Maximum mm 3.24 3.24 iii) Minimum mm 3.12 3.12
Cross sectional area of nominal diameter wire
mm2 7.942 7.942
(b) Minimum Weight Kg/Km 61.95 61.95 (c) Breaking Load(Min) i) Before stranding KN 10.43 10.43 ii) After stranding KN 9.91 9.91
d) Elongation of 200mm gauge length on breaking (Elongation Test)
i) Before stranding % 4 4 ii) After stranding(Min) % 3.5 3.5
(e) No.of twist on a length equal to 100 times the diameter of wire (Torsion Test)
i) Before stranding Nos. 18(Min.) 18(Min.) ii) After stranding Nos. 16Min.) 16Min.) (f) Minimum Weight of Zinc Coating i)Before Stranding gm/m2 250 250
ii)After Stranding gm/m2 237.5 237.5 (g) Uniformity of Zinc Coating
No. of dips for 1minute duration which the strands can withstand (Precee Test)
i)Before Stranding(Min) Nos. 3 3
ii)After Stranding(Min) Nos. 2 x 1min + 1 x
1/2min. 2 x 1min + 1 x
1/2min. (h) Co‐efficient of linear expansion per oC 11.5 x 10‐6 11.5 x 10‐6
(i) Modulus of elasticity Kg./cm2 1.9 x 106 1.9 x 106
(j) Minimum UTS of Strand
KN/MM² 1.315 1.315
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S.No. Particulars Unit Standard Value offered
8 Complete Conductor
(a) Code Zebra ACSR Zebra ACSR
(b) Standard Nominal Copper Area mm2 260 260
(c) Equivalent Nominal Aluminim Area mm2 420 420
(d) Sectional Aluminim Area mm2 428.9 428.9
(e) Total Sectional Area mm2 484.5 484.5
(f) Overall Diameter mm 28.62 28.62 (g) Strands & Wire Diameter i)Aluminium Nos/mm 54/3.18 54/3.18 ii)Steel Nos/mm 7/3.18 7/3.18 (h) Lay Ratio i) Steel ‐ 6Wire Max‐28 / Min‐13 Max‐28 / Min‐13 ii) Aluminium ‐ 12Wire Max‐17 / Min‐10 Max‐17 / Min‐10 iii) Aluminium ‐ 18Wire Max‐16 / Min‐10 Max‐16 / Min‐10 iv) Aluminium ‐ 24Wire Max‐14 / Min‐10 Max‐14 / Min‐10 (i) Calculated Breaking Load KN 130.32 130.32
(j) Modulus of Elasticity Kg./cm2 .69 x 106 .69 x 106
(k) Co‐efficient of Linear Expansion per oC 19.3x10‐6 19.3x10‐6
(l) Minimum Weight i) Aluminium Kg/Km 1185 1185 ii) Steel Kg/Km 436 436 iii) ACSR Conductor Kg/Km 1621 1621
(m) Continuous max. current rating of conductor in still air at 45 oC ambient temperature
Ampere AS Per ISS AS Per ISS
(n) Calculated Resistance at 20ºC Ω/Km 0.06868 0.06868 (o) Standards Length Meters 1500 1500 (p) Tolerance on Standard Length % 5 5 (q) Random Length % 10 10 (u) Drum Dimensions mm As per Availability As per Availability(v) Joints in Strands i) Steel 6 Wire No Joints No Joints ii) Aluminium 24 Wire No Joints No Joints
iii) Aluminium 18 Wire No two joints within
15 meters No two joints within
15 meters
iv) Aluminium 12 Wire No two joints within
15 meters No two joints within
15 meters
(x) Method of making joints As per clause no.6.0 of IS398(Part‐II)
As per clause no.6.0 of IS398(Part‐II)
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