High-speed data transmission cable КВИП (KVIP)
manufactured acc. to ТУ 3581-012-76960731-2008

High-speed data transmission cables КВИП provide data transfer in frequency band up to 1 MHz and are to be used in the following applications: digital data buses, connection of sensors with frequency modulated digital signal, RS 485, RS 482, RS 422, in systems Foundation Fieldbus, PROFIBUS, HART, Ethernet or other interfaces requiring a twisted pair as a data transfer means.

Cables are designed for fixed and movable installation indoor and outdoor, on condition of preventing direct solar radiation, in cable ducts, tunnels, underground trenches incl. locations subject to earth currents. Cables in UV modification may be laid in the open air without a radiation protection. Cables are also applicable to explosion hazards areas of classes 0, 1, 2 (acc to GOST R MEC 60079-14-2008), and in nuclear power stations safety systems.

Design specifics, materials, modifications

• Meet requirements of standards "RS" of EIA/TIA association.
• Cross-linked polyolefin core insulation considerably increases frequency characteristics in comparison with PVC insulation
• Copper multi-strand conductors of cl. 4, with numerical or colour marking
• "Twisted pairs" may have separate screens or one common screen
• Core cross section from 0,12mm² to 1,5mm², the number of "twisted pairs" from 1 to 61
• Wide operating temperature range −60°... +200°С
• Cable in modification "М" — is oil resistant
• Cable with fire safety index "FR" — is fire resistant
• Cable in modification "УФ" — is UV resistant
• New materials are applied for version "нг(A)-LS", "нг(A)-HF", "T"
• from Moisture spreading protection is applied
• Large application area, including all explosion hazardouszones
• Combined cable — ther are copper conductors and optical fibers in one cable

Cables КВИП with core cross section 0,12..1,5mm² have multi-strand tinned copper conductor of class 4 or higher, whereas for core diameters 0,40; 0,51; 0,64mm the conductor is solid of class 1. Insulation of all cables is made of the cross-linked polyolefin, so the cables comply completely with RS standards on wave resistance.

"В" for the sheath material in the cable description means PVC, if united with fire safety index "нг(A)" it means low-combustible PVC compound, "нг(A)-LS" - low-smoking PVC compound. "П" means the sheath made of polymeric material which is always halogen free ("нг(A)-HF"). "Т" means thermoplastic elastomer which gives the cable more flexibility and expanded temperature range. All the cables are available in fire-resistant modification "FR".

Conductors of the cable are twisted in pairs ("twisted pair") with lay length no more than 40mm (for "FR" cables - no more than 60mm) and have numerical or colour marking; pairs may have separate screens, one common screen made of stranded copper wires or Alumoflex (foiled film) with a drain wire or have no screen at all. Under the outer sheath there is a special tape that prevents moisture from spreading lengthwise All the cables have round cross section provided by a substrate manufactured by an extrusion method, so the cables meet completely requirements of Section 9.3.1 of GOST R MEC 60079-14-2008.

Table 1. Fire safety index depending on the insulation and jacket material
Sign of insulation material	Fire Safety Index	Material of jacket (core insulation for all the cables –cross-linked polyolefin)	Example of description
В	(no index)	PVC compound	КВИП 4x2х1,0 ВК
	нг(A)	low-combustible PVC compound	КВИП нг(A) 12x2х0,64м В
	нг(A)-LS	low-combustible and low-smoking PVC compound	КВИП нг(A)-LS 7x2х0,5 ЭВЭ
	нг(A)-FRLS	low-combustible PVC compound which is fire resistant and low-smoking	КВИП нг(A)-FRLS 10x2х0,75 ВЭК
П	нг(A)-HF	Sheath made of halogen-free polymeric compounds	КВИП нг(A)-HF 4x2х0,5м П-УФ
	нг(A)-FRHF	Sheath made of halogen-free polymeric compounds; the cable is fire resistant	КВИП нг(A)-FRHF 2x2х1,0 П-М
Т	нг(A)	Sheath made of low-combustible thermoplastic elastomers	КВИП нг(A) 6x2х0,12 ТЭ
	нг(A)-FR	Sheath made of low-combustible thermoplastic elastomers; the cable is fire resistant	КВИП нг(A)-FR 5x2х1,0 Т-Т-М

Fire-resistant cables (index "нг(A)-FR", "нг(A)-FRLS" и "нг(A)-FRHF")

In fire resistant cable (with indexes "нг(A)-FR", "нг(A)-FRLS" and "нг(A)-FRHF" each conductor is wrapped under the insulation with two mica tapes. Such cable keeps serviceability for minimum 90 min. when exposed to open flame and high temperature up to +750°С. This helps to avoid the power cut in case of fire. The requirements on the obligatory use of the FR cables in the -alarm systems, emergency lighting, exhausters, fire pumps, lifts etc. are stated in GOST R 53315-2009 and "Technical Regulations on requirements of fire safety" d.d. 22.07.2008 №123-Ф3.

The following customized modifications are available:

• with colour jacket (red, yellow and other colours are available);
• with combined cross-section of twisted pairs’ conductors (twisted pairs of different cross-sections in one cable);
• Cable of combined transmission - one cable serves simultaneously for transmitting electrical power (through copper conductors) and optical signals (through optic fibers).

Table 2. Nominal cross-sections, the number of twisted pairs
Cable type	Nominal diameter or cross-section of the core		the number of pairs
	Diameter of the solid core, mm	Cross-section of the multi-strand core, mm²
КВИП ххх В (К, ЭВ, ЭВК, ВЭ, ВЭК, ЭВЭ, ЭВЭК); КВИП нг(A) ххх В (К, ЭВ, ЭВК, ВЭ, ВЭК, ЭВЭ, ЭВЭК); КВИП нг(A)-LS ххх В (К, ЭВ, ЭВК, ВЭ, ВЭК, ЭВЭ, ЭВЭК); КВИП нг(A)-HF ххх П (К, ЭП, ЭПК, ПЭ, ПЭК, ЭПЭ, ЭПЭК); КВИП нг(A) ххх Т (К, ЭТ, ЭТК, ТЭ, ТЭК, ЭТЭ, ЭТЭК)	0,40; 0,51; 0,64	0,12; 0,20; 0,35	1x2; 2x2; 3x2; 4x2; 5x2; 6x2; 7x2; 8x2; 10x2; 12x2; 14x2; 16x2; 18x2; 19x2; 20x2; 24x2; 27x2; 30x2; 37x2; 40x2; 44x2; 48x2; 52x2; 61x2
	-	0,5; 0,75; 1,0; 1,2; 1,5	1x2; 2x2; 3x2; 4x2; 5x2; 6x2; 7x2; 8x2; 10x2; 12x2; 14x2; 16x2; 18x2; 19x2; 20x2; 24x2; 27x2; 30x2; 37x2; 40x2
КВИП нг(A)-FRLS ххх В (К, ЭВ, ЭВК, ВЭ, ВЭК, ЭВЭ, ЭВЭК); КВИП нг(A)-FRHF ххх П (К, ЭП, ЭПК, ПЭ, ПЭК, ЭПЭ, ЭПЭК); КВИП нг(A)-FR ххх Т (К, ЭТ, ЭТК, ТЭ, ТЭК, ЭТЭ, ЭТЭК)	-	0,5; 0,75; 1,0; 1,2; 1,5	1x2; 2x2; 3x2; 4x2; 5x2; 6x2; 7x2; 8x2; 10x2; 12x2; 14x2; 16x2; 18x2; 19x2; 20x2; 24x2; 27x2; 30x2; 37x2; 40x2

Table 3. Technical data of the cables
Operating Temperature	-60° ... +80°C for cables with special index "ХЛ" -60° ... +125°C for cables with sheath material "Т" -50° ... +200°C for cables with sheath material "Т-Т" -50° ... +80°C for other types of the cables
Minimal temperature of mounting	-30°С for cable with special index "ХЛ" and sheath material "Т" -15°С for other types of the cables
Operating Voltage	up to 660 VAC with frequency up to 1 MHz up to 1000 VDC
Insulation Resistance at operating temperature: t = +20°C t = +80°C (+125 or +200°C for cable "Т" and "Т-Т")	≥ 1000 МОhm •km ≥ 10 МОhm •km
Resistance of conductors to the direct current	According to requirements of GOST 22483-77
Min. Bending Radius (measured in the cable’s outer diameters - D)	5D for the cables without an armour 10D for the cables with an armour
Climatic design	Type В, category of location 2-5 (acc. GOST 15150-69). Allowed for all climatic regions tropics included.
Protection against lengthwise spread of moisture in case of a jacket damage	Moisture is blocked completely
Fire resistance (for cables with index "FR")	Minimum 90 min. when exposed to open flame and high temperature up to +750°С
Fungi immunity	The cables are proof to influence of fungi, the degree of biological overgrowing with the fungi is up to 2 points
Min. Life Time	30 years 25 years for cables with sheath material "Т"

Electrical features of the cables

Table 4. Maximal Working Capacity and Inductivity of a twisted pair at 20°С referred for 1km of the cable’s length
Frequency, kHz	Max. Working Capacity, nF				Max. Inductivity, mH
Cross-section, mm²	0,50	0,75	1,00	1,50	0,50	0,75	1,00	1,50
0,05	99	113	122	124	0,73	0,68	0,66	0,62
8,00	97	109	117	118	0,71	0,67	0,64	0,61
16,00	95	106	113	114	0,71	0,67	0,64	0,59
64,00	88	97	104	105	0,70	0,64	0,60	0,54
256,00	86	93	99	100	0,65	0,59	0,55	0,49

Table 5. Maximal ratio of Inductivity to Resistance of a twisted pair at 20°С referred for 1km of the cable’s length
Frequency, kHz	Max. Inductivity to Resistance Ratio μH/Ohm
Cross-section, mm²	0,50	0,75	1,00	1,50
0,05	9,3	13,2	17,3	24,6
8,00	8,9	12,5	16,2	22,4
16,00	7,9	10,8	13,3	16,6
64,00	6,2	7,4	7,7	8,2
256,00	3,2	3,2	3,2	3,3