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750V 70C NYY
 TIS 11-2531, TABLE 7 (3 CORE)
 NYY(3 CORE) CABLE
Construction
1. Conductor : Solid or concentric stranded annealed copper wires
2. Insulation : Polyvinyl chloride (PVC)
    Identification : Gray, Black and Red color
3. Inner Sheath : Polyvinyl chloride (PVC), Black color
4. Outer Sheath : Polyvinyl chloride (PVC), Black color
Application
For installation exposed or in raceway, dry or wet location or direct burying in ground.
Conductor
 Thickness
of
insulation


mm
 Thickness
of
inner
Sheath

mm
 Thickness
of
outer
Sheath

mm
 Overall
diameter



mm
 Current rating
 Minimum
insulation
resistance
(at 70°C)

Mohm-km
 Cable
weight
(Approx.)


kg/km
 Standard
Length



m
Nominal
cross-
sectional
area
sq.mm
 No.& dia.
of
wires

No./mm
 in
air


A
 in
ground


A
1 1/1.13 0.8 0.8 1.8 12.5 13 19 0.0141 180 100/C
1 7/0.40 0.8 0.8 1.8 13.0 13 19 0.0135 180 100/C
1.5 1/1.38 0.8 0.8 1.8 13.0 17 23 0.0123 200 100/C
1.5 7/0.50 0.8 0.8 1.8 13.5 17 23 0.0116 200 100/C
2.5 1/1.78 0.8 0.8 1.8 14.0 23 32 0.0102 250 100/C
2.5 7/0.67 0.8 0.8 1.8 15.0 23 32 0.0093 250 100/C
4 1/2.25 0.9 0.8 1.8 15.5 30 41 0.0094 330 100/C
4 7/0.85 0.9 0.8 1.8 16.5 30 41 0.0085 330 100/C
6 7/1.04 0.9 0.8 1.8 18.0 39 52 0.0073 440 100/C
10 7/1.35 1.1 0.8 1.8 20.5 52 70 0.0069 640 500/D
16 7/1.70 1.1 1.2 2.0 24.5 70 90 0.0057 930 500/D
25 7/2.14 1.3 1.2 2.0 28.5 92 116 0.0054 1360 500/D
35 19/1.53 1.3 1.2 2.0 31.5 112 140 0.0047 1730 500/D
50 19/1.78 1.5 1.5 2.2 36.0 134 165 0.0046 2440 500/D
70 19/2.14 1.5 1.5 2.2 40.5 167 203 0.0039 3110 500/D
95 19/2.52 1.7 1.5 2.4 46.0 205 242 0.0038 4180 500/D
120 37/2.03 1.7 1.8 2.6 50.5 239 277 0.0034 5190 300/D
150 37/2.25 1.9 1.8 2.8 56.0 273 310 0.0034 6300 300/D
185 37/2.52 2.1 2.0 3.0 61.5 315 350 0.0034 7840 300/D
240 61/2.25 2.3 2.0 3.2 69.0 373 404 0.0033 10060 200/D
300 61/2.52 2.5 2.2 3.4 76.0 429 455 0.0032 12450 200/D
 

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