FIELD: communications.
SUBSTANCE: cable contains internal conductor in polymeric insulation, external conductor, at that, specified conductors have equal values of electrical direct-current resistance, and sheath made of three layers, the middle of which is made of reinforcing filaments and the other two are made of polymeric mixture. Electric communication cable also can consist of at least two mentioned cables sealed into common protective sheath over which layer of water-proof material, armor consisting of circular steel wires and moister-protective polyethylene hose can be applied.
EFFECT: provides minimal attenuation of low-frequency signals, control signals, signalisation and low-voltage electric power supply with simultaneous maintaining the attenuation coefficient for high-frequency signals.
2 dwg, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| MOUNTING CABLE, MOSTLY EXPLOSION-PROOF, FOR HIGH-SPEED AUTOMATICS SYSTEMS (VERSIONS) | 2010 |
|
RU2417470C1 |
| MOUNTING CABLE, MOSTLY EXPLOSION-PROOF, FOR LOW-SPEED AUTOMATICS SYSTEMS (VERSIONS) | 2010 |
|
RU2417469C1 |
| ELECTRICAL COLD-RESISTANT FLAME-RETARDING CABLE, ESSENTIALLY EXPLOSION- AND FLAME-PROOF, FOR SPARK-PROOF CIRCUITS | 2013 |
|
RU2535603C2 |
| ARMORED MOUNTING CABLE, MAINLY FIRE AND EXPLOSION SAFE, INCLUDING THAT FOR THE INTRINSICALLY SAFE CIRCUITS | 2015 |
|
RU2658308C2 |
| TWISTING METHOD OF CORE OF MULTI-STRAND COMMUNICATION CABLES, TWISTING DEVICE, AND MULTI-STRAND COMMUNICATION CABLE | 2009 |
|
RU2396620C1 |
| FIRE-RESISTANT ELECTRICAL CABLE, MAINLY FIRE-AND-EXPLOSION-PROOF, WHICH PROPAGATES NO FIRE, FOR SPARK-PROOF CIRCUITS | 2013 |
|
RU2542350C1 |
| METHOD FOR MANUFACTURING AN ELECTRICAL CABLE AND A CABLE MANUFACTURED BY THIS METHOD | 2022 |
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RU2797030C1 |
| ELECTRIC MULTICORE CABLE | 2016 |
|
RU2642419C1 |
| SEALED PAIR AND TRIPLE, AND MOUNTING CABLES, MOSTLY EXPLOSION-PROOF, FOR LOW-SPEED AUTOMATION SYSTEMS WITH A CORE FROM SEALED PAIRS OR TRIPLES (OPTIONS) | 2022 |
|
RU2787357C1 |
| OPTICAL FIBER IN TIGHT BUFFER COATING, FIBER-OPTIC CABLES AND METHODS FOR APPLICATION OF TIGHT BUFFER COATING TO OPTICAL FIBER (OPTIONS) | 2021 |
|
RU2782677C1 |
