High-speed data transmission cable KVIP

KVIP cables are manufactured with tinned or untinned copper “m” conductors, either single-wire or multi-wire, class 4 according to GOST 22483-2012.

The nominal cross-section of multi-wire conductors, the diameter of single-wire conductors, and the number of twisted pairs are specified in Table 2. By agreement with the customer, cables can be manufactured with a different number of twisted pairs, nominal conductor cross-section/diameter, as well as with combined conductor cross-sections in twisted pairs.

In fire-resistant “FR” cables, a wrapping of two mica-containing tapes is applied over the conductive cores, preventing short circuits between them in case of fire.

The conductor insulation is made of cross-linked polyolefin. The marking of insulated conductors is either color-coded or numeric (with numbers placed no more than 35 mm apart).

The insulated conductors are twisted into pairs with a pitch of no more than 40 mm, and in fire-resistant cables, no more than 60 mm. By agreement, the cable can be manufactured with an unequal and non-multiple twisting pitch of the twisted pairs.

Each twisted pair can have an individual shield:

• “E” – wrapping of aluminum-foil film (alumoflex) with a multi-wire tinned copper drain wire,
• “Em” – braid of copper wires,
• “El” – braid of tinned copper wires,
• “EEl” – over the alumoflex wrapping, a braid of tinned copper wires is applied; if necessary, a drain wire can be placed between the shields.

An insulating polymer film is applied over each individual shield, eliminating electrical contact between adjacent shields. In individual shields of types “(E)”, “(Em)”, “(El)”, and “(EEl)”, instead of film, an extruded layer of polymer material is applied, providing reliable insulation between the shields.

A water-blocking tape is applied over the cable core to prevent longitudinal moisture penetration in case of outer sheath damage.

Over the water-blocking tape wrapping, a common shield of type “E”, “Em”, “El”, or “EEl” can be applied.

An extruded separation layer is applied over the common shield or water-blocking tape, filling the free spaces between the conductors (in accordance with GOST IEC 60079-14-2013). As a result, the cable takes a round cross-section, and in the event of sheath damage, an explosive gas mixture cannot travel along the compacted cable from a hazardous area to a safe one where non-explosion-proof equipment is used. A cable with a round cross-section can be used with any type of cable glands. By agreement with the customer, cables can be manufactured without extruded filling.

Cables can have armor made of galvanized wires:

• “K” – in the form of a continuous wire layer under the outer sheath,
• “KG” – in the form of a wire braid over the inner sheath; the outer sheath is not applied over the armor (“bare” armor).

The cable sheath is made of material (Table 3):

• PVC plastic compound “V”,
• halogen-free polymer composition “P”,
• thermoplastic elastomer “T”.

The sheath color is specified in the order code; if not specified, the cables are manufactured in black.

• with a different number of pairs and nominal conductor cross-section,
• with a different class of conductive cores,
• twisted pairs with different conductor cross-sections in a single cable,
• with a colored outer sheath (orange, red, yellow, or other colors),
• combined transmission cables – transmitting both electrical power (through conductive cores) and optical signals (through optical fibers) in a single cable.