Review performance and best NYM cable manufacturers

How stands?

Abbreviation NYM means:

N - Normenleitung standard (German standard cables classification);

Y - isolation represented polyvinyl chloride (PVC);

M - be mounted in a variety of conditions;

addition it should be noted that the cable marking NYM species may have a prefix «-J» or «-O», respectively, which indicates the presence of green or yellow-blue wires (ground or zero).

also on cable acronym VDE (Veiband Deutscher Electrotechniker) can be specified, which means that the product complies with all standards and can be used in fire areas.

Design features

Considering the specifications NYM cable, the first thing I would like to talk about product design.Thus, the conductor is arranged as follows:

• copper wires can be single-wire or stranded depending on the section;
• number of cores from 1 to 5;
• current carrying core insulation of PVC;
• between the cores and the outer shell to be an intermediate layer of non-combustible sealing (melonapolnennaya tires);
• outer shell is represented PVC;
• color-coded according to the international standards.

Basic parameters

Speaking about NYM cable can not but consider it the main technical characteristics, namely:

1. Rated voltage (maximum load): 660 V (0,66);
2. frequency - 50 Hz;
3. copper cross-section of cables 1.5 to 35 mm2;
4. Operating temperature from -50 ° C to + 50 ° C;
5. Minimum laying temperature - not lower than -5 ° C;
6. minimum bending radius - 4 outer diameter;
7. service life - 30 years;
8. Warranty period - 5 years;

As for the other technical characteristics NYM (permissible current, the outer diameter, weight), they may be different, depending on the size of the conductor.All the main parameters we have provided in the tables described below:

Scope

As already indicated in the marking, NYM cable may be used in all electrical work (both industrial and household).Thanks to the power conductor structure including an intermediate layer of non-combustible, electrical cable is most often used when installing wiring in wooden houses, as well as for outdoor installation (on the street), on the condition that it will not be exposed to direct sunlight.

main advantages

you are familiar with the technical characteristics of the conductor, and now I would like to tell you about the main benefits NYM cable.Among the main advantages can be distinguished:

1. elasticity of the product.Due to the intermediate rubber layer, the cable is fairly flexible.This advantage is rational to use when installing wiring in confined spaces, as well as in the ground if you want to hold the electric line over long distances.
2. high quality products.Since the conductor before entering the market are many international surveys, when buying a NYM cable can be sure that the cross section and insulation thickness corresponds to the marking, which can not be said about the dangerous wire SPAP.
3. Due to the intermediate layer of non-combustible cable, so it can be used in fire areas.
4. NYM has a lot of positive feedback from experts in the field of electrical work.On most forums this type of conductor is highly recommended to use in lighting and power circuits.

As you can see, the advantages of the electric cable speak for themselves.The only drawback - the cost of production.Compared with domestic counterparts, for example, cable VVGng for this guide will have to pay more money.

Hersteller

Well, the last thing I would like to tell - a manufacturer of NYM is better to choose.Of the foreign factories of manufacturers, the leaders are Helukabel, Lapp Kabel and TKD Kabel (Germany).Also has high-quality products from manufacturers DENIZLI CABLE LTD (Turkey) and Nexans' (France).

From domestic NYM cable manufacturers can advise such plants as Sevkabel, Kamkabel and Pskovkabel whose products have passed all the certificates of conformity to standards and meets all specifications and GOST.

draw your attention to the fact that in recent years the market of electrical products are increasingly began to appear fake.In your case it is strongly suggested to sidestep products labeled «NUM» and «HUM», as in the photo below!

That's all that I wanted to tell you about the technical characteristics of the NYM cable.After reviewing the marking guide, scope and purpose, you can now accurately decide whether to buy a version of the product for their own electrical work!
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