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0.490” (12.45 mm) 7-Conductor Extra High Strength 7Q49-EHS

0.490” (12.45 mm) 7-Conductor Extra High Strength 7Q49-EHS

Properties

Cable Diameter:

0.490” +0.006” - 0.003”
(12.45mm + 0.15mm -0.076mm)

Minimum Sheave Diameter:

25”
(64 cm)

Cable Stretch Coefficient:

0.60 ft/Kft/Klbs
(0.67 m/km/5KN)

ELECTRICAL

Maximum Conductor Voltage:

1200 VDC

Recommended Operating Conductor Voltage:

Conductor AWG Rating:

20

Recommended Operating Conductor Voltage

1,500 MegΩ/Kft @ 500 VDC
(457 MegΩ/Km @ 500 VDC)

Armor Electrical Resistance:

1.0 Ω/Kft
(3.3 Ω/Km)

Mechanical

Minimum Insulation Resistance:

Ends Fixed:

25,750 lbs
(114.6 KN)

Maximum Suggested Working Tension:

12,875 lbs
(57.3 KN)

Number and Size of Wires:

Inner Armor:
20 x 0.0460”
(1.17 mm)
Outer Armor:
20 x 0.0620”
(1.57 mm)

Average Wire Breaking Strength:

Inner Armor:
532 lbs
(2.4 KN)
Outer Armor:
966 lbs
(4.3 KN)
Cable Type Core Description Cable Weight
Temp Rating Plastic Type Insulation Thickness Copper Construction Res Typical Cap Typical O.D. Each Tape Type In Air In H2O Spec. Gravity
°F
°C		 in
mm		 in
mm		 Ω/Kft
ΩKm		 pf/ft
pf/m		 in
mm		 lbs/Kft
Kg/Km
7Q49RTZZ-EHS 500*°
-18°		 ETFE 0.0100
0.254		 7x9.0128
7x0.325		 9.8
32.2		 27
89		 0.084
2.134		 ETFE 409
609		 338
503		 N/A
7Q49RTZZ-EHS 500*°
-18°		 FEP 0.0130
0.330		 7x0.0128
7x0.325		 9.8
32.2		 27
89		 0.064
1.626		 ETFE 409
609		 338
503		 N/A

* See attached specification sheet for recommended maximum temperature exposure times.

  • The armor wires are high tensile, Galvanized Extra Improved Plow Steel (GEIPS), and coated with anti-corrosion compound for protection during shipping and storing. Wires are preformed.
  • Conductors are “Water Blocked” to reduce water and gas migration. Conductor resistance is measured at 68° F.
  • The temperature rating assumes a normal gradient for both temperature and weight.
  • Center conductor construction is 7x0.0142” with a non-conductive center member. The typical resistance is reduced by approximately 5 to 10% and the capacitance is increased by approximately 5 to 10% in comparison to the outer conductors.
  • All values shown are nominal or typical values.


View Product Specification Sheet