- How to decipher the marking?
- Design features
- General parameters
- Scope
- Manufacturers
How to decipher the marking?
So, first of all, let's talk about what all the same means the abbreviation SHVVP: wire or cable? Very many people when searching for information about this conductor connect it with these prefixes. In fact, the abbreviation stands for:
- Ш - cord;
- B - sheath of veins made of polyvinyl chloride;
- B - outer sheath of polyvinyl chloride;
- P is flat.
As you can see, this type of conductor can not be called a cable or a wire. So that in the future you can immediately determine by the abbreviation what is in front of you for the type of conductor, we recommend that you familiarize yourself with the decoding of the marking of wires and cables!
Design features of
After you have learned the decoding of the marking of the cord of SHVVP, we advise you to familiarize yourself with its basic design features.
So, this electrical cord has the following design:
- Conductive copper conductors, round cross-section, multiwire( it is clearly visible in the photo).
- Number of cores 2 or 3.
- The location of the conductors is parallel to each other.
- Color marking complies with GOST standards: zero blue, brown phase. If the cord is three-core( for example, SHVVP 3 * 1.5), the insulation of the third core is colored yellow-green and used as ground.
Basic parameters
The main performance indicators, in other words - the technical characteristics of SHVVP are represented by the following values:
- rated voltage - 220/380 V;
- nominal frequency of alternating current oscillations - 50 Hz;
- peak voltage( up to 15 minutes) - 2000 Volts;
- cross-section of conductors from 0.35 to 2.5 mm2;
- service life from 6 to 15 years;
- warranty period of 2 years;
- specific electric resistance per 1 km of cord - no more than 270 Ohm;
- operating temperature( working) - from -40 to + 40 ° C;
- mounting is allowed at an ambient temperature of -10 to +30 ° C;
- the minimum permissible bending radius of the conductors is 30 mm2;
- permissible current load( long-time permissible current) - depends on the cross-section of the conductors( for example, in the size 2 * 0.75 mm2 is 6 Amperes).
- weight from 0,026 to 0,049 kg per 1 meter of length.
As you can see, the characteristics of SHVVP allow you to use this cord for electrical work, both outdoors and indoors. About where this type of conductor is applied to the house, we'll talk further.
Scope of Application
Due to the fact that the cross section of the strands of the SHVVP does not exceed 2.5 mm2, it can not be used to connect powerful electrical appliances. In spite of the fact that the maximum cross-section of the cores allows connecting some electrical appliances with the power of 1-2 kW by means of SHVVP, most often the following cord sizes are used at home: 2 * 0.5;2 * 0.75;2 * 1.5;3 * 0.75;3 * 1.5.
As a rule, the field of application of the SHVVP cord is as follows:
- Used for connection of low-power electrical appliances: kettle, table lamp, radio equipment, etc. Some craftsmen make "transfers" with the help of this electric wire. If you suddenly decide to make an extension cord with your own hands, it is better to choose a more reliable analogue - PVS wire.
- It is used for installation of lighting, both street and indoor. In my practice I have repeatedly met a cord with the same marking, which connects the LED strips with the power supply.
As you can see, the use of SHVVP is not always appropriate, which is associated with a small cross-section of cores. At home, we recommend using a cord with such a marking not for the entire wiring, but only when installing lighting in the rooms!
Manufacturers
Well, the last thing you should talk about - what are the manufacturers of the cord SHVVP.To date, the production of this conductor is engaged in such plants as Verkhnekokskiy Cable Plant, Sevkabel, Energokabel, Cable Telecommunications and other leading companies.
For quality, according to customer feedback, this 4-ka manufacturers rarely fail. If you suddenly become suspicious about the quality of the products, we recommend that you determine the cable cross-section yourself to be sure in accordance with the GOST standards!
cord check. That's all I wanted to tell you about the purpose and technical characteristics of the SHVVP.We hope that the description provided was interesting and useful for you. We also recommend reading the article - how to find the wire in the wall!