FIELD: electrical engineering.
SUBSTANCE: invention relates to the field of electrical engineering, namely to cable engineering and can be used in the construction of cables used in low-speed automation systems, mainly for use in explosive environments of industrial production. The effect is achieved by using a foamed polymer filler as a filler for air cavities located between the cores with the formation of gas bubbles in it with a diameter of 30-50 microns, which prevents the spread of explosive gases, flammable liquids and flames from the explosive zone to the non-explosive zone along the core, especially when connecting cables to electrical equipment with explosion protection of the type "explosion-proof enclosures "d".
EFFECT: increasing the explosion safety of the cable while maintaining the flexibility and capacitance required.
25 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ELECTRICAL COLD-RESISTANT FLAME-RETARDING CABLE, ESSENTIALLY EXPLOSION- AND FLAME-PROOF, FOR SPARK-PROOF CIRCUITS | 2013 |
|
RU2535603C2 |
| FIRE-RESISTANT WIRE AND FIRE-RESISTANT CABLE FOR FIRE ALARM (VERSIONS) | 2018 |
|
RU2696769C1 |
| SYMMETRIC HIGH-FREQUENCY SEALED CABLE | 2019 |
|
RU2725148C1 |
| MOUNTING CABLE, MAINLY EXPLOSION-PROOF FOR HIGH-SPEED AUTOMATIC CONTROL SYSTEMS | 2022 |
|
RU2786188C1 |
| VIBRATION-RESISTANT CABLE WITH INSULATION MADE OF FIRE-RESISTANT ORGANOSILICON RUBBER | 2014 |
|
RU2577519C1 |
| ARMORED MOUNTING CABLE, MAINLY FIRE AND EXPLOSION SAFE, INCLUDING THAT FOR THE INTRINSICALLY SAFE CIRCUITS | 2015 |
|
RU2658308C2 |
| FIRE-RESISTANT ELECTRICAL CABLE, MAINLY FIRE-AND-EXPLOSION-PROOF, WHICH PROPAGATES NO FIRE, FOR SPARK-PROOF CIRCUITS | 2013 |
|
RU2542350C1 |
| FLEXIBLE EXTENSIVE HYDROACOUSTIC ANTENNA AND METHOD OF ITS MANUFACTURING | 2011 |
|
RU2475774C1 |
| TWISTING METHOD OF CORE OF MULTI-STRAND COMMUNICATION CABLES, TWISTING DEVICE, AND MULTI-STRAND COMMUNICATION CABLE | 2009 |
|
RU2396620C1 |
| ELECTRIC MULTICORE CABLE | 2016 |
|
RU2642419C1 |
