625铝管电缆

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Product description: (aerial construction) solid aluminum tube swaged onto dielectric core, fully bonded copper clad center conductor medium density PE jacket, figure 8 integrated messenger
Center conductor:
Copper clad aluminum
Nominal diameter: 0.137 (3.48 mm)
Dielectric:
Micro-cellular foam PE
Nominal diameter 0.565 (14.35 mm)
Shield: Solid aluminum tube
Nominal outer conductor thickness: 0.030 (0.76 mm)
Jacket: Medium density PE
Nominal jacket diameter: 0.685 (17.40 mm)
Nominal jacket thickness: 0.030 (0.76 mm)
Messenger:
Nominal diameter of steel messenger: 0.109 (2.77 mm)
Minimum breaking strength of messenger: 1, 800 lbs. (816 kgf)
Mechanical characteristics:
Minimum bend radius standard: 7.0 (17.8 cm)
Minimum bend radius: Bonded = 4.5 (11.4 cm)
Maximum pulling tension = 475 lbs. (216 kgf)
Electrical characteristics:
Capacitance: 15.3 pf/ft. (50 nf/km)
Impedance: 75 ohms
Velocity of propagation: 87% nominal
Nominal DC loop resistance @ 68f: 1.10 ohms/1000 ft. (3.51 ohms/km)
Attenuation @ 68f (20c):
@ frequency MHz dB/100ft. (max. ) dB/100meters(max. )
5 MHz 0.31 0.43
55 MHz 0.46 1.51
83 MHz 0.57 1.87
211 MHz 0.92 3.02
250 MHz 1.00 3.28
300 MHz 1.08 3.54
350 MHz 1.18 3.87
400 MHz 1.27 4.17
450 MHz 1.35 4.43
500 MHz 1.43 4.69
550 MHz 1.50 4.92
600 MHz 1.58 5.18
750 MHz 1.78 5.84
865 MHz 1.93 6.33
1000 MHz 2.07 6.79