Key Features of KG Cable
Labeling Explanation
The abbreviation KG is decrypted quite simply - the cable is flexible. If the marking contains the prefix "n", i.e. KGN, this suggests that the conductor is additionally protected by a rubber oil-resistant sheath, which makes it non-combustible.
There is also a tropical version (indicated in the documentation as KG-T), in which it is allowed to use a conductor in conditions of -10 ° C to + 55 ° C and cold-resistant design of KG-HL (-60 ° C to + 50 ° C).
We figured out the decoding of the marking of the KG electric cable, we hope that everything is extremely clear. We also recommend that you familiarize yourself with the generally accepted wire and cable marking! You can visually see the appearance of the conductor in the video review below:
Design features
The design of the KG power cable is as follows:
- The current-carrying core was copper, multi-wire and, of course, flexible. In the KG-T brand, the veins are tinned and correspond to class 5 of GOST 22483.
- The number of copper conductors can vary from 1 to 5, and the cross section is from 1 to 240 mm2.
- The insulation layer is rubber (rubber like RTI-1 or RTI-2-HL). The outer shell is represented by rubber insulation RShT-2 or RShTM-2. If the conductor is single-core, its protective layer is represented by rubber like RTISH. A release layer in the form of a synthetic film may be present.
- Color marking lived fully in accordance with international standards.
You learned the design of the KG power cable, now let's talk about the main operational and technical characteristics of the conductor.
Description of the main parameters
Of the most important characteristics, we can distinguish:
- rated voltage of 660 V (alternating) and 1000 V (constant);
- AC frequency 400 Hz;
- operating temperature from -40 ° C to + 50 ° C (KG brand, we talked about the temperature of the other varieties above);
- the most admissible heating lived no more than 75aboutWITH;
- minimum bending radius of 8 outer diameters;
- maximum building length with a cross section of conductors up to 35 mm2 is at least 150 meters and with a cross section greater than 50 mm2 not less than 125 meters;
- Warranty period of operation of 6 months;
- service life 4 years;
- tensile force 1 mm2 no more than 19.6 N;
- electrical insulation resistance of at least 50 megohms * km.
Of the other technical characteristics of the KG cable, one can distinguish the estimated mass and the outer diameter of the conductor.So that you can clearly see these parameters for each individual product size, we take into account this table:
By the way, the price per km of KG cable starts at 10,000 (the average cost of KG-HL 2 * 0.75 in online stores) and ends at 1,975,000 (four-core KG-HL 3 * 185 + 1 * 95).
Application area
Well, the most interesting for readers my.electricianexp question - where is the KG power flexible cable used? This conductor is designed to connect mobile mechanisms to the network. It can be used for laying, both indoors and outdoors. The use of an electric cable for stationary connection of installations is not allowed, including its laying underground. This is due to the fact that the insulation of the conductor is not able to withstand mechanical loads, and can be damaged even with the pressure of hard soils.
It is allowed to mount the cable line in the open air on cables and racks, if all safety measures are taken. In addition, the cable, as we already said, is frost-resistant therefore it can be used even at subzero temperatures.
Very often, the KG cable is used to connect a welding machine, a submersible pump, and even cranes. If you want to do-it-yourself extension cord, which will be designed for outdoor use, we recommend choosing this particular brand of electrical cable.
We draw your attention to the fact that there are analogues of this electrical conductor. Instead, you can also use cable products labeled “KPG”, “KPGS” or “KRPT”.
Top manufacturers
The last thing I would like to talk about is which KG cable manufacturers are considered the best today. According to numerous customer reviews, products from the manufacturers of KamKabel LLC and RybinskKabel OJSC have acceptable quality and the same price. Quite good quality has cable products of GC "Sevcable".
That's all I wanted to tell you about the technical characteristics of the KG cable. We hope that now you know where you can use this conductor, what types it can be and what is equally important - which manufacturers produce the highest quality products!
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What document regulates this requirement: "the maximum building length with a cross section of conductors up to 35 mm2 is at least 150 meters and with a cross section greater than 50 mm2 at least 125 meters"?