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Monoconductor

1N25 S77

1/4” (6.55 mm) MONOCONDUCTOR, CORROSION RESISTANT 1N25 S77

1/4” (6.55 mm) MONOCONDUCTOR, CORROSION RESISTANT 1N25 S77 PROPERTIES


Cable Diameter 0.258” +0.005” - 0.002” (6.55mm + 0.13mm -0.05mm)
Minimum Sheave Diameter 14” (36 cm)
Cable Stretch Coeffcient 2.3 ft/Kft/Klbs (2.60 m/Km/5KN)

1/4” (6.55 mm) MONOCONDUCTOR, CORROSION RESISTANT 1N25 S77 ELECTRICAL


Maximum Conductor Voltage 1,200 VDC
Conductor AWG Rating 16
Minimum Insulation Resistance 1,500 Mega Ω/Kft @ 500VDC (457 Mega Ω/Km @ 500VDC)
Armor Electrical Resistance 10.0 Ω/Kft (32.9 Ω/Km)

1/4” (6.55 mm) MONOCONDUCTOR, CORROSION RESISTANT 1N25 S77 MECHANICAL


Cable Breaking Strength
Ends Fixed
6,500 lbs (28.9 KN) Nominal
Maximum Suggested Working Tension 3,250 lbs (14.5 KN)
Number and Size of Wires
Inner Armor 12 x 0.0358” (0.909 mm)
Outer Armor 18 x 0.0358” (0.909 mm)
Average Wire Breaking Strength
Inner Armor 252 lbs (1.12 KN)
Outer Armor 252 lbs (1.12 KN)

Insulation is rated to 500° F. Armor wires are rated to 425° F at low levels of H2S + CO2.
The armor wires are made of a corrosion resistant alloy steel. Wires are preformed.
The nickel coated copper wires are made according to the ASTMB355 Class 10 and they are used to increase corrosion
protection.
Core assembly – Copper strand consists of nineteen wires. Conductor resistance is measured at 68° F. Voids in the copper
strand are flled with a water-blocking agent to reduce water and gas migration.
SUPERSEAL, a special pressure seal agent, is applied between armor layers.
The temperature rating assumes a normal gradient for both temperature and weight.
All values shown are nominal or typical values.

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