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control, management, installation, measuring
KUIN cables are designed for use in control, monitoring, and signaling circuits, inter-instrument connections, the formation of digital information buses, and as measuring wires for resistance thermometers (twisted pairs, triples, and quadruples for 2-wire, 3-wire, and 4-wire connection schemes). The cables can be used for data transmission in the frequency range up to 4 MHz, as well as for connecting AC electrical equipment with a nominal voltage of up to 690 V at a frequency of 50 or 60 Hz, or DC electrical equipment with a nominal voltage of up to 1000 V.
The cables can be installed in explosive hazardous areas of all classes (in accordance with the requirements of GOST IEC 60079-14-2013) and in open-air environments (in compliance with GOST R 50571.5.52-2011). They can also be used in metro infrastructure facilities and nuclear energy facilities in AS safety class 2, 3, and 4 systems according to NP-001-15 classification, outside the hermetic zone.
KUIN cables are manufactured with multi-stranded copper conductors or tinned “l” conductors (GOST 22483):
The nominal conductor cross-section and number of pairs are specified in Table 2. By agreement with the customer, cables can be manufactured with a different number of conductors and nominal cross-sections, as well as with a combined conductor cross-section.
In fire-resistant “FR” cables, a wrapping of two mica-containing tapes is applied over the current-carrying conductors, preventing short circuits between them in case of fire.
Conductor insulation can be made of the following materials:
The marking of insulated conductors is either color-coded or numerical (with numbers spaced no more than 35 mm apart).
Insulated conductors can be twisted into a common core, into pairs “x2”, triples “x3”, or quadruples “x4”.
Cables with a common conductor twist may include a grounding conductor “(PE)” in yellow-green color.
Each conductor (pair, triple, quadruple) can have an individual shield:
An insulating polymer film is applied over each individual shield, ensuring no electrical contact between adjacent shields. In individual shields “(E)”, “(Em)”, “(El)”, “(EEl)”, and “(Emf)”, instead of a film, an extruded layer of polymer material is applied, providing reliable insulation between the shields of pairs.
A water-blocking tape is applied over the cable core to prevent longitudinal moisture propagation in case of outer sheath damage.
A common shield of type “E”, “Em”, “El”, “EEl”, or “Emf” may be applied over the water-blocking tape.
An extruded separation layer is applied over the common shield or water-blocking tape, filling the free spaces between conductors (in accordance with GOST IEC 60079-14-2013). As a result, the cable cross-section becomes round, preventing an explosive gas mixture from migrating from a hazardous area to a safe one through a tightly sealed cable in case of sheath damage. Round-section cables can be used with any type of cable gland. By agreement with the customer, cables can be manufactured without extruded filling.
Cables (except single-core ones) can have armor made of galvanized steel wires in the form of a solid winding “K” or a braid “Ko”, or galvanized steel tapes “B”.
An outer sheath is applied over the armor. The cable sheath is made of PVC plastic compounds, halogen-free polymer compositions, or thermoplastic elastomers (see Table 3).
The cable sheath color is determined in the order code. If not specified, cables are manufactured in black.
“T” – increased heat resistance, operates at temperatures up to +200°C (only for material “T”),
“HL” – cold-resistant, cable installation without additional heating is possible down to -30°C,
“EHL” – resistant to extremely cold conditions, cable installation is possible down to -40°C,
“UF” – resistant to solar radiation, cables have placement category 1 according to GOST 15150: resistant to rain exposure, dynamic abrasive dust impact, and frost formation,
“H” – resistant to acids, alkalis, and environments with a high hydrogen sulfide content,
“M” – resistant to gasoline and industrial oil,
“ZG” – with a sheath resistant to rodents, ants, and termites. Such a cable has a fire hazard rating of ng(C)-HF or “ng(C)-FRHF.”
| Fire hazard rating |
| no index |
| ng(A) |
| ng(A)-LS |
| ng(A)-LSLTx |
| ng(A)-HF |
| ng(A)-FR |
| ng(A)-FRLS |
| ng(A)-FRLSLTx |
| ng(A)-FRHF |
| Individual shielding of each conductor (pair, triple, quadruple) | |
| without individual shielding | |
| E | aluminum foil tape (alumoflex) |
| Em | copper wire braid |
| El | tinned copper wire braid |
| EEl | tinned copper wire braid applied over alumoflex |
| Emf | copper foil tape |
| (E), (Em), (El), (EEl) | shields are insulated from each other by an extruded polymer layer |
| Conductor cross-section, mm² |
| 0.20 (no “FR”); 0.35; 0.50; 0.75; 1.0; 1.2; 1.5; 2.5; 4 (common twists); 6 (overall twisting) |
| Tinning of the conductor | |
| non-tinned conductor | |
| l | tinned conductor |
| Sheath and insulation material | |
| V | PVC plastic compound |
| P | halogen-free polymer compositions |
| Ps | cross-linked polyolefin insulation, sheath – PVC or halogen-free composition |
| T | thermoplastic elastomer |
x
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TU 3581-010-76960731-2008
| High flexibility (conductor not lower than class 5) | |
| standard flexibility | |
| G | cable with high-flexibility conductors |
| Number of conductors (pairs, triples, quads) |
| 1…61 – number of conductors in the overall twist |
| 1…44 x 2 – number of pairs 1…44 |
| 1…24 x 3 – number of triples 1…24 |
| 1…14 x 4 – number of quads 1…14 |
| Presence of grounding conductor (only for cables with overall conductor twisting) | |
| without grounding conductor | |
| (PE) | grounding conductor |
| Overall shield over the core of all conductors | |
| without overall shield | |
| E | aluminum foil film (alumoflex) |
| Em | braid of copper wires |
| El | braid of tinned copper wires |
| EEI | braid of tinned copper wires applied over alumoflex |
| Emf | copper foil film |
| Armor under the outer sheath (except for single-core cables) | |
| without armor | |
| K | solid winding of galvanized wires under the outer sheath |
| Ko | braid of galvanized wires under the outer sheath |
| B | tape armor made of galvanized steel tapes |
| Special characteristics | |
| no special characteristic | |
| HL | increased frost resistance of cables |
| EHL | resistance to extreme cold conditions |
| UV | resistant to ultraviolet exposure throughout the cable’s service life, resistant to rain, dynamic abrasive dust impact, and frost deposition |
| M | oil and fuel resistance |
| H | resistance to chemically aggressive environments |
| T | increased heat resistance up to +200°C (only for material “T”) |
| ZG | sheath resistance to damage by rodents, ants, termites. Fire hazard rating “ng(C)-HF” or “ng(C)-FRHF” |
| c | cable with a blue-colored sheath |
| Example of cable designation when ordering | |
| KUIN ng(A)-LS 2x2x1.5L EmVK TU 3581-010-76960731-2008 | KUIN cable, flame-retardant, with low smoke and gas emission, with insulation and sheath made of PVC compounds with reduced fire hazard, with two pairs of tinned copper conductors with a nominal cross-section of 1.5 mm², each twisted pair has an individual shield in the form of a copper wire braid, under the outer sheath there is armor in the form of a solid winding of galvanized steel wires, the cable has extruded filling of the gaps between the conductors, the cable is round in cross-section, operating temperature from -50º to +70ºC, installation down to -15ºC |
| KUIN ng(A)-FR 5×1.0(PE) TEl TU 3581-010-76960731-2008 | KUIN cable, fire-resistant, flame-retardant, with insulation and sheath made of thermoplastic elastomers, with an overall shield in the form of a tinned copper wire braid, without armor, with five copper conductors with a nominal cross-section of 1.0 mm² in a common twist, one of the conductors is a ground wire (PE) of yellow-green color, the cable has extruded filling of the gaps between the conductors, the cable is round in cross-section, operating temperature from -60º to +125ºC, installation down to -30ºC |
| KUIN ng(A)-HF 5x3x0.75L EPE-EHL TU 3581-010-76960731-2008 | KUIN cable, flame-retardant, with insulation and sheath made of halogen-free polymer compositions, with five triples of tinned copper conductors with a nominal cross-section of 0.75 mm², individual shields of the twisted triples and the overall shield are made of aluminum foil tape with a multi-wire tinned drain conductor, the cable is without armor, it has extruded filling of the gaps between the conductors, the cable is round in cross-section, resistant to extremely cold conditions, operating temperature from -70º to +70ºC, installation down to -40ºC |
| Rated Voltage | – up to 690 V AC at standard frequency 50 or 60 Hz – up to 1000 V DC | |
| Electrical insulation resistance at +20°C, not less than | – 500 MΩ/km for cross-linked polyolefin insulation – 100 MΩ/km for halogen-free polymer compositions and thermoplastic elastomer – 10 MΩ/km for PVC insulation | |
| Electrical resistance of conductive cores (at +20°C) | Electrical resistance of cores with a cross-section of 0.2-1.0 mm2and 1.5-6.0 mm2complies with GOST 22483-2012. Electrical resistance of conductive core with a nominal cross-section of 1.2 mm², not more than: – Class 3 core: tinned core – 17.6 Ω/km, untinned core – 17.3 Ω/km, – Class 4 and 5: tinned core – 16.5 Ω/km, untinned core – 16.0 Ω/km | |
| Cable test with AC voltage at 50 Hz for 5 min | Unshielded cables: – 2500 V (for cores 0.35-6 mm2) – 2000 V (for cores 0.2 mm2) Shielded cables: – 2000 V (for cores 0.35-6 mm2) – 1500 V (for cores 0.2 mm2) | |
| Maximum capacitance | At 1.0 kHz frequency, recalculated per 1 km length at +20°C, not more than | Between adjacent cores: – 70 nF (for cores 0.2-0.75 mm2) and 100 nF (for cores 1.0-6.0 mm2) for cables with “Ps” material – 140 nF (for cores 0.2-0.75 mm2) and 180 nF (for cores 1.0-6.0 mm2) for cables with “V”, “P”, “T” material Between a core connected to the shield and another arbitrary core: – 180 nF for cables with “Ps” material – 300 nF for cables with “V”, “P”, “T” material |
| Maximum inductance | 0.9 mH | |
| Operating temperature in a stationary state | -60° to +70°C for cables with “HL” index (up to +80°C with “Ps” material) -70° to +70°C for cables with “EHL” index (up to +80°C with “Ps” material) -60° to +125°C for cables with “T” material -50° to +200°C for cables with “T” material and “T” index (high heat resistance) -50° to +70°C for other cable types (up to +80°C with “Ps” material) | |
| Minimum installation temperature, not below | – minus 40°C for cables with “EHL” index – minus 30°C for cables with “HL” index or “T” material – minus 15°C for other cable types | |
| Impact resistance at low temperatures | down to -60°C for “EHL” cables, down to -40°C for “HL” cables | |
| Climatic design according to GOST 15150 | Design “B” placement category 1-5, suitable for all macroclimatic regions | |
| Fire resistance of cables with “FR” index | At least 180 minutes under flame exposure and temperature of at least +750°C (PO1 according to GOST 31565) | |
| Resistance to longitudinal moisture penetration under the sheath | Fully blocked at a distance of 0.5 m from penetration point (special water-blocking tape applied in all cables) | |
| Mold resistance | Cables resistant to mold exposure, biological fouling degree up to 2 points | |
| Seismic and vibration resistance | Maintains operability under seismic impact of at least 7 points on the MSK-64 scale. | |
| Resistance to decontaminating solution | Resistant, solution composition according to clause 6.5.9 of PNST 167-2016 or as agreed | |
| Permissible bending radii for installation and operation in D (outer cable diameter), not less than | – 3D for non-armored cables – 4D for wire-armored cables – 5D for tape-armored cables | |
| Cable service life, not less than | For cables with thermoplastic elastomer insulation and sheath – at least 25 years, other cables – at least 30 years | |
| Warranty period | 2 years from commissioning date | |
| Structural element | Nominal conductor cross-section, mm2 | Number of conductors, pairs, triples, quadruples |
| Conductor | 0.20; 0.35; 0.50; 0.75; 1.0; 1.2; 1.5; 2.5; 4; 6 | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 24, 27, 30, 37, 40, 44, 48, 52, 61 |
| Pair (×2) | 0.20; 0.35; 0.50; 0.75; 1.0; 1.2; 1.5; 2.5 | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 24, 27, 30, 37, 40, 44 |
| Triple (×3) | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 24 | |
| Quadruple (×4) | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 |
* – By agreement with the customer, cables can be manufactured with a different number and nominal cross-section of conductors (pairs, triples, quadruples).
– Cables with conductors of a nominal cross-section of 0.20 mm² are not manufactured in the fire-resistant “FR” version.
| Designation of sheath and insulation material | Fire hazard rating | Description of sheath and insulation material, as well as cable type according to fire hazard rating (as per GOST 31565-2012) |
| V | –(no index) | cables with insulation and sheath made of PVC plastic compounds, not propagating combustion in single installation |
| ng(A) | cables with PVC plastic insulation and low-flammability PVC plastic sheath, not propagating combustion in group installation under category A | |
| ng(A)-LS | cables with insulation and sheath made of low-fire-hazard PVC plastics, not propagating combustion in group installation under category A, with reduced smoke and gas emission | |
| ng(A)-LSLTx | cables with insulation and sheath made of low-fire-hazard PVC plastics, not propagating combustion in group installation under category A, with reduced smoke and gas emission, and low toxicity of combustion products | |
| ng(A)-FRLS | fire-resistant cables with insulation and sheath made of low-fire-hazard PVC plastics, not propagating combustion in group installation under category A, with reduced smoke and gas emission | |
| ng(A)-FRLSLTx | fire-resistant cables with insulation and sheath made of low-fire-hazard PVC plastics, not propagating combustion in group installation under category A, with reduced smoke and gas emission, and low toxicity of combustion products | |
| P | ng(A)-HF | cables with insulation and sheath made of halogen-free polymeric compounds, not propagating combustion in group installation under category A, and not emitting corrosive gaseous combustion products |
| ng(A)-FRHF | fire-resistant cables with insulation and sheath made of halogen-free polymeric compounds, not propagating combustion in group installation under category A, and not emitting corrosive gaseous combustion products | |
| Ps | ng(A)-LS | cables with cross-linked polyolefin insulation and low-fire-hazard PVC sheath, not propagating combustion in group installation under category A, with reduced smoke and gas emission |
| ng(A)-FRLS | fire-resistant cables with cross-linked polyolefin insulation and low-fire-hazard PVC sheath, not propagating combustion in group installation under category A, with reduced smoke and gas emission | |
| ng(A)-HF | cables with cross-linked polyolefin insulation and a halogen-free polymer sheath, not propagating combustion in group installation under category A, and not emitting corrosive gaseous combustion products | |
| ng(A)-FRHF | fire-resistant cables with cross-linked polyolefin insulation and a halogen-free polymer sheath, not propagating combustion in group installation under category A, and not emitting corrosive gaseous combustion products | |
| T | ng(A) | cables with insulation and sheath made of thermoplastic elastomers, not propagating combustion in group installation under category A |
| ng(A)-FR | fire-resistant cables with insulation and sheath made of thermoplastic elastomers, not propagating combustion in group installation under category A |
* – “ZG” cable (rodent-resistant) is made of material “P” with rating “ng(S)-HF” or “ng(S)-FRHF”
| Insulation and sheath material | Permissible conductor heating temperature, ºC | |||
| long-term permissible | under overload conditions | maximum during short circuit | non-ignition during short circuit | |
| “V” – PVC plastic compound | 70 | 90 | 160 | 350 |
| “P” – halogen-free polymer composition | ||||
| “Ps” – cross-linked polyolefin | 90 | 130 | 250 | 400 |
| “T” – thermoplastic elastomer | 125 | 150 | 200 | 350 |
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