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secondary underground cable
ASTM Standard Secondary UD Cable(Duplex)
Code
word
Phase Conductors Neutral Diameter Approx.
Weight
Allowable
Ampacities
(Raceway,
Cable Tray,
Direct
Burial)
Size Number
of
Wires
Insulation
Thickness
Size Number
of
Wires
Insulation
Thickness
Single
Phase
Conductor
Complete
Cable
AWG mm AWG mm mm mm Kg/km
Bard 8 7 1.52 8 7 1.52 6.7 13.5 93 55
Clafin 6 7 1.52 6 7 1.52 7.6 15.1 135 70
Delgado 4 7 1.52 4 7 1.52 8.7 17.5 192 110
Everett 2 7 1.52 2 7 1.52 11.1 22.3 303 180



ASTM Standard Secondary UD Cable(Triplex)
Code
word
Phase Conductors Neutral Diameter Approx.
Weight
Allowable
Ampacities
(Raceway,
Cable Tray,
Direct
Burial)
Size Number
of
Wires
Insulation
Thickness
Size Number
of
Wires
Insulation
Thickness
Single
Phase
Conductor
Complete
Cable
AWG mm AWG mm mm mm Kg/km
Erskine  1.52  1.52  7.6  16.3  201  60 
Vassar  1.52  1.52  8.7  18.8  287  75 


ASTM Standard Secondary UD Cable(Triplex) Continue Table
Code
word
Phase Conductors Neutral Diameter Approx.
Weight
Allowable
Ampacities
(Raceway,
Cable Tray,
Direct
Burial)
Size Number
of
Wires
Insulation
Thickness
Size Number
of
Wires
Insulation
Thickness
Single
Phase
Conductor
Complete
Cable
AWG mm AWG mm mm mm Kg/km
Stephens 2 7 1.52 4 7 1.52 10.2 22.1 375 110
Ramapo 2 7 1.52 2 7 1.52 10.2 22.1 419 110
Brenau 1/0 19 2.03 2 7 1.52 13.2 28.5 583 150
Bergen 1/0 19 2.03 1/0 19 2.03 13.2 28.5 665 150
Converse 2/0 19 2.03 1 19 2.03 14.3 30.9 723 165
Hunter 2/0 19 2.03 2/0 19 2.03 14.3 30.9 808 165
Hollins 3/0 19 2.03 1/0 19 2.03 15.6 33.6 877 190
Rockland 3/0 19 2.03 3/0 19 2.03 15.6 33.6 983 190
Sweetbriar 4/0 19 2.03 2/0 19 2.03 17.1 36.8 1070 225
Monmouth 4/0 19 2.03 4/0 19 2.03 17.1 36.8 1201 225
Pratt 250 37 2.41 3/0 19 2.03 19.0 40.9 1285 250
Wesleyan 350 37 2.41 4/0 19 2.03 21.6 46.6 1686 305
Newark 350 37 2.41 350 37 2.41 22.8 49.1 2171 305
Holyoke 500 37 2.41 300 37 2.41 24.9 53.7 2325 380
Rider 500 37 2.41 350 37 2.41 24.9 53.7 2407 380
Seton Hall 750 61 2.79 750 61 2.79 30.2 65.1 3908 470



ASTM Standard Secondary UD Cable(Quadruplex)
Code
word
Phase Conductors Neutral Diameter Approx.
Weight
Allowable
Ampacities
(Raceway,
Cable Tray,
Direct
Burial)
Size Number
of
Wires
Insulation
Thickness
Size Number
of
Wires
Insulation
Thickness
Single
Phase
Conductor
Complete
Cable
AWG mm AWG mm mm mm Kg/km
Tulsa 4 7 1.52 4 7 1.52 8.7 21.1 385 85
Dyke 2 7 1.52 4 7 1.52 10.2 24.7 518 110
Wittenberg 2 7 1.52 2 7 1.52 10.2 24.7 562 110
Notre Dame 1/0 19 2.03 2 7 1.52 13.2 32.0 810 150
Purdue 1/0 19 2.03 1/0 19 2.03 13.2 32.0 892 150
Syracuse 2/0 19 2.03 1 19 2.03 14.3 34.6 998 165
Lafayette 2/0 19 2.03 2/0 19 2.03 14.3 34.6 1084 165
Swarthmore 3/0 19 2.03 1/0 19 2.03 15.6 37.7 1211 190
Davidson 3/0 19 2.03 3/0 19 2.03 15.6 37.7 1317 190
McPherson 4/0 19 2.03 2 7 1.52 17.1 41.2 1338 225
Wake Forest 4/0 19 2.03 2/0 19 2.03 17.1 41.2 1478 225
Earlham 4/0 19 2.03 4/0 19 2.03 17.1 41.2 1609 225
Rust 250 37 2.41 3/0 19 2.03 19.0 45.8 1810 260
Slippery Rock 350 37 2.41 4/0 19 2.03 21.6 52.1 2326 305
Wofford 500 37 2.41 350 37 2.41 24.9 60.1 3301 380
Westminster 750 61 2.79 350 37 2.41 30.2 73.0 4567 470
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