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750V 70C NYY-N
 TIS 11-2531, TABLE 8 (3 CORE)
 NYYN(3 CORE) CABLE
Construction
1. Conductor : Solid or concentric stranded annealed copper wires
2. Insulation : Polyvinyl chloride (PVC)
    Identification : Phase - Black, Red and Blue color
  Neutral - Gray 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
 Neutral 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
6 7/1.04 0.9 4 7/0.85 0.9 0.8 1.8 19.0 39 53 0.0073 520 500/D
10 7/1.35 1.1 6 7/1.04 0.9 0.8 2.0 23.0 53 70 0.0069 760 500/D
16 7/1.70 1.1 10 7/1.35 1.1 1.2 2.0 26.5 70 91 0.0057 1100 500/D
25 7/2.14 1.3 16 7/1.70 1.1 1.2 2.0 31.0 91 115 0.0054 1570 500/D
35 19/1.53 1.3 16 7/1.70 1.1 1.5 2.2 35.0 112 140 0.0047 2000 500/D
50 19/1.78 1.5 25 7/2.14 1.3 1.5 2.2 39.5 136 166 0.0046 2770 500/D
70 19/2.14 1.5 35 19/1.53 1.3 1.5 2.4 44.5 169 204 0.0039 3600 500/D
95 19/2.52 1.7 50 19/1.78 1.5 1.8 2.6 51.5 209 244 0.0038 4890 300/D
120 37/2.03 1.7 70 19/2.14 1.5 1.8 2.8 56.0 242 277 0.0034 6050 300/D
150 37/2.25 1.9 70 19/2.14 1.5 2.0 3.0 62.0 275 309 0.0034 7200 300/D
185 37/2.52 2.1 95 19/2.52 1.7 2.0 3.2 68.0 318 349 0.0034 9000 300/D
240 61/2.25 2.3 120 37/2.03 1.7 2.2 3.4 76.5 376 403 0.0033 11530 200/D
300 61/2.52 2.5 150 37/2.25 1.9 2.2 3.8 84.5 432 455 0.0032 14920 200/D
 

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