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Help CenterSelf Supported Jelly Filled Aerial Installation Telephone Cables 400pair 26AWG
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Specifications
self supported jelly filled aerial installation telephone cables 400pair 26AWGused for aerial installation.
self supported jelly filled aerial installation telephone cables 400pair 26AWG
Usage: Transmitting audio frequency signals, analog signals up to 1
50kHz or digital signals up to 2048kbit/s and in certain condition can carry digital signals, which is higher than 2048kbit/s
Application mode: Used for aerial installation
Specifications:
1, Conductor
Solid annealed copper electrolytic copper. The conductor sizes are 0.4- 0.5- 0.6 or 0.9 mm Anon-hydroscopic and dielectric polyester tape is applied helically over the cable core. Applied polyester tape at least overlaps by 5%.
2, Color Coding
For fully color-coding please refer to annex for detailed information of pair color code and sub unit color codes.
3, Insulation
Colored foam skin polyethylene insulation or solid insulation in according to ASTM 1248, foam skin insulation with cellular polyethylene covered with skin layer of high density polyethylene compound. Solid insulation is made by medium or high density polyethylene compound.
4, Twisting / Quadding
Two or four insulated wire twisted together. The twist length specially designed to minimize the capacitance unbalance and cross talk.
5, Cable Core
Twisted wires are assembled to form substantially cylindrical groups of ten pairs (units). Super units are assembled by suitable number of units, which are binded by durable colored tapes and cabled to complete cable core.
6, Filling Compound
The water resistance-filling compound, which has 85ºC drop point, is applied to the cable core to provide water resistance.
7, Core Wrapping
A non-hydroscopic and dielectric polyester tape is applied helically over the cable core. Applied polyester tape at least overlaps by 5%.
8, Identification
A plastic tape, durable marked with the manufacturer name, year of manufacture, and cable size (if required) is placed under the core wrapping.
9, Flooding Compound / Water blocking Tape
In order to prevent the water resistance, flooding compound applied over the cable core. In customer request water blocking tape could be applied between core wrapping and aluminum tape in helically or longitudinally.
10, Screen
A single flat aluminum tape (0,2 mm thickness of aluminum) coated both side 50- micron polyethylene film applied longitudinally over core covering with a min 5 mm overlap. In customer request 0,15 mm thick aluminum tape could be used.
11, Support Messenger
According to ASTM A 475-66T galvanized 7 steel wires stranded rope having minimum 120 kg/mm2 is used as holding rope.
12, Outer Jacket
Over the corrugated steel tape, outer jacket is extruded black low-density polyethylene or medium density polyethylene in accordance with ASTM D 1248. Outer jacket polyethylene includes %2,5 ±0,5 carbon black for sunrise resistance. The color of outer sheath is black.
Cable Construction
- Steel messenger
- Insulated Conductor
- Jelly Filling Compound
- Core Wrapping
- Aluminium Foil
- Outher Sheath
13, packing: by Iron wooden drum
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