Instrument cable KCI

Instrument cables are suitable for data transmission and use in measurement and control technology, such as control rooms of industrial units and power plants. If a screen is used, the transmission circuit is protected against external electrical interference. Cables with paired structure have suitable values in terms of harmonic distortion.

Instrument cable standard

EN 50288-7 with a nominal voltage of 90 V, 300 V or 500 V.

Instrument cable structure

Conductor: plain annealed copper or gore clad tin 1 (single wire), group 2 (regularly twisted) or group 5 (flexible) with a cross section of 0.5, 0.75, 1, 1.5 and 2.5 mm2 according to HD 383 standard.
Insulation: The material of insulation can be one of the following:
– PVC: according to EN 50290-2-21 standard
– PE: according to EN 50290-2-23 standard
– PP: based on EN 50290-2-25 standard
– HFFR: based on EN 50290-2-26 standard
– XLPE: according to EN 50290-2-29 standard

How to place instrument cable strings

Strings are single, double, triple or quadruple structural components. Strings are identified by color code or by numbering on strings.

Screen of the structural components of the instrument cable

Cable components in pairs, threes, or fours can be covered with a layer of copper wire or tin-plated copper in the form of a texture with a filling percentage of at least 60% or a combination of aluminum foil and a layer of copper wire or tin-plated copper. Screened in the form of texture with a percentage of at least 30% or with aluminum foil overlapping at least 20%, where a copper or tin-coated copper discharge wire is in contact with its metal part. Tape on the assembly of woven components: the structural components of the cable, which are woven, are protected by a layer of non-absorbent tape.

General screen:

If necessary, the set of structural components can be screened with one of the types of screens mentioned in the cable structural implementation screen section.

middle cover:

A layer of extruded material from one of the following types of materials is considered for armored cables:
- PVC: according to EN 50290-2-22 standard
– PE: based on EN 50290-2-24 standard
– HFFR: based on EN 50290-2-27 standard

Armour: If necessary, soft galvanized steel wires are considered as twisted on the middle cover or as soft galvanized steel wires in the form of weave.

Coating: A layer of extruded material from one of the following types of materials is considered for the final coating:

- PVC: according to EN 50290-2-22 standard
– PE: based on EN 50290-2-24 standard
– HFFR: based on EN 50290-2-27 standard

Buy and price of precision instrument cable, bow cable from the market

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