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750V 70C NYY-GRD
 TIS 11-2531, TABLE 14 (4 CORE)
 NYY-GRD(4 CORE) CABLE
Construction
1. Conductor : Solid or concentric stranded annealed copper wires
2. Insulation : Polyvinyl chloride (PVC)
    Identification : Phase - Gray, Black, Red and Blue color
  Ground - Green/Yellow 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.
Phase conductor
 Ground conductor
 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
 Thickness
of
insulation

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

No./mm
 Thickness
of
insulation

mm
 in
air


A
 in
ground


A
1 1/1.13 0.8 1 1/1.13 0.6 0.8 1.8 14.0 12 17 0.0141 230 500/D
1 7/0.40 0.8 1 7/0.40 0.6 0.8 1.8 14.5 12 17 0.0135 230 500/D
1.5 1/1.38 0.8 1 1/1.13 0.6 0.8 1.8 15.0 16 22 0.0123 260 500/D
1.5 7/0.50 0.8 1 7/0.40 0.6 0.8 1.8 15.5 16 22 0.0116 260 500/D
2.5 1/1.78 0.8 1.5 1/1.38 0.6 0.8 1.8 16.0 21 29 0.0102 330 500/D
2.5 7/0.67 0.8 1.5 7/0.50 0.6 0.8 1.8 17.0 21 29 0.0093 330 500/D
4 1/2.25 0.9 2.5 1/1.78 0.6 0.8 1.8 18.0 27 37 0.0094 440 500/D
4 7/0.85 0.9 2.5 7/0.67 0.6 0.8 1.8 19.0 27 37 0.0085 440 500/D
6 7/1.04 0.9 4 7/0.85 0.6 0.8 1.8 20.5 36 48 0.0073 600 500/D
10 7/1.35 1.1 4 7/0.85 0.6 0.8 2.0 25.0 48 63 0.0069 880 500/D
16 7/1.70 1.1 6 7/1.04 0.6 1.2 2.0 28.5 62 79 0.0057 1260 500/D
25 7/2.14 1.3 6 7/1.04 0.6 1.2 2.0 33.5 82 103 0.0054 1790 500/D
35 19/1.53 1.3 10 7/1.35 0.6 1.5 2.2 38.5 100 123 0.0047 2390 500/D
50 19/1.78 1.5 10 7/1.35 0.6 1.5 2.2 43.0 120 147 0.0046 3180 500/D
70 19/2.14 1.5 10 7/1.35 0.6 1.5 2.4 44.5 150 179 0.0039 4060 500/D
95 19/2.52 1.7 16 7/1.70 0.6 1.8 2.6 51.5 185 214 0.0038 5550 300/D
120 37/2.03 1.7 16 7/1.70 0.6 1.8 2.8 56.0 216 244 0.0034 6770 300/D
150 37/2.25 1.9 25 7/2.14 0.6 2.0 3.0 62.0 245 272 0.0034 8340 300/D
185 37/2.52 2.1 25 7/2.14 0.6 2.0 3.2 68.0 285 309 0.0034 10240 200/D
240 61/2.25 2.3 35 19/1.53 0.6 2.2 3.4 76.5 340 355 0.0033 13230 200/D
300 61/2.52 2.5 35 19/1.53 0.6 2.2 3.8 84.5 390 404 0.0032 16280 200/D
 

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