Characteristics and scope of heat-resistant wire RKGM

Due to the fact that additional requirements are imposed on the output ends of electrical equipment and in particular electric motors with voltages up to 0.66 kV, ordinary power cables cannot be used. Therefore, there is a special category of cable products called “Cables and wires for special purposes”. In this article, we’ll just talk about one of the representatives of this category, having examined the technical characteristics of the cable RKGM, as well as its scope and table sections. So, everything in order.

Decoding abbreviations

The first thing you need to start with is to tell you how the RKGM label is deciphered. The abbreviation means the following:

  • the letter “A” is absent at the beginning, which means copper conductors;
  • P - rubber insulation, and its type is organosilicon, as evidenced by the following letter "K";
  • G - flexible wire, not armored;
  • M - the outer braid is represented by fiberglass, which is additionally impregnated with heat-resistant silicone varnish and enamel.

You can familiarize yourself with the design of the conductor in the picture below:

What a heat-resistant conductor consists of

We draw your attention to the fact that RKGM is a wire, not a cable!

main parameters

The most important technical characteristics of the RKGM wire:

  1. Rated voltage (alternating) - up to 660 V.
  2. Multi-wire core, cross section from 0.75 to 120 mm2, flexibility class not lower than 4 according to GOST 22483-77.
  3. The minimum bending radius during installation should be 2 diameters.
  4. Relative humidity 100% at a temperature not exceeding + 35 ° С
  5. Operating temperature from -60 ° C to + 180 ° C, while the temperature of the gasket is not lower than -15 ° C.
  6. Warranty period of service of 8 years.
  7. Resistant to burning.

With regard to the entire range of sections, as well as the mass of the RKGM wire and diameter, we provided a description of these characteristics in the table, with which we recommend that you read:

Dimensions, outside diameter and weight

Application area

As we said above, the wire of the RKGM brand is heat-resistant and, moreover, is able to withstand voltages up to 660 Volts. Due to this, this conductor is used in the following conditions:

  1. Installation of electrical circuits indoors and outdoors in a temperate climate.
  2. The manufacture of windings in powerful electrical installations, as well as variable machines.
  3. Application at the enterprises of the chemical industry (since rubber insulation does not dissolve when exposed to chemicals).
  4. Installation in places subject to mold and mildew.

As for living conditions, then most often the wire RKGM is used for laying electrical wiring in the bath, a sauna, as well as for connecting equipment located in rooms with high temperature. Therefore, if you do not know which cable to use for wiring in the bath, pay attention to this brand. 2.5 mm cross section2 suitable for the outlet group, if powerful electrical appliances are not connected, and the cross-section is 1.5 mm2 It will be quite enough for the installation of lighting (connecting lamps in the steam room, etc.).

In addition, the RSCM wire can be used to conduct wiring in the bathroom or basement (technical specifications allow use in places with high humidity).

We draw your attention to the fact that the conductor is heat-resistant, however, it is not recommended to use it in an environment with a low temperature, because the shell has a low resistance to minus marks.


Well, the last thing I would like to talk about is which factories manufacturers of heat-resistant wire RKGM today are the highest quality. According to customer reviews and our own experience, we can say that the leading manufacturers today are:

  • Camcable;
  • Uralcable;
  • Rybinskkabel;
  • Novomoskovsky cable factory.

By the way, the production of the RCMG should be carried out in accordance with the technical specifications TU16.K80-09-90. If you need an analogue of this conductor, then you can use a PRKT wire for replacement, which has similar technical characteristics.

Finally, we recommend watching useful videos on the topic:

Insulation Test - Part 1

Insulation Test Part 2

So we examined the scope, decoding and technical characteristics of the wire RKGM. We hope the information was useful to you!

It will be useful to read:

Insulation Test - Part 1

Insulation Test Part 2

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One comment

  • Nikolay

    And where are the current characteristics for the RSCM?

    To answer

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