FIELD: multiple twin cables for communications in local network.
SUBSTANCE: proposed multiple twin cable designed to prevent vapor transfer when immersed in petroleum oil has internal and external sheaths that cover insulated signal-transferring conductors and are made in the form of helical structure. Core filler fills up core and spaces between signal transferring conductors. Core filler and internal sheath are made of vapor-tight material and fixed to insulated conductors so that they fill up all grooves and slots around signal transferring conductors. External gas-tight sheath can be provided to make it possible to immerse cable in petroleum oil for long time intervals without impairing its functional capabilities.
EFFECT: ability of preventing vapor transfer lengthwise of cable.
26 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| COMMUNICATION CABLE | 2011 |
|
RU2476944C2 |
| CAPACITIVE POWER TRANSMISSION CABLE | 2019 |
|
RU2794917C2 |
| METHOD OF MAKING ELECTRIC CABLE | 2024 |
|
RU2825997C1 |
| SENSING ELEMENT FOR DETERMINING HUMIDITY CONTENT OF LIQUID MEDIA | 2006 |
|
RU2330267C1 |
| ARMORED MOUNTING CABLE, MAINLY FIRE AND EXPLOSION SAFE, INCLUDING THAT FOR THE INTRINSICALLY SAFE CIRCUITS | 2015 |
|
RU2658308C2 |
| SEALED ELECTRIC CABLE OF PAIR TWISTING | 2017 |
|
RU2653691C1 |
| 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 |
| ELECTRICAL CABLE WITH SEMICONDUCTING UPPER LAYER DIFFERENT FROM SHEATH | 2010 |
|
RU2540268C2 |
| HIGH-FREQUENCY BALANCED SHIELDED CABLE | 2004 |
|
RU2273904C2 |
| COMMUNICATION CABLE | 2014 |
|
RU2568859C1 |
