🔌 Wire PV3: characteristics and practice of

Wire PV-3, the characteristics of which we will discuss in this article, is used to connect powerful appliances and devices lighting. Editorial HouseChief prepared for you all the useful and important information about this type of wire, which is useful in practice.

PV3 cable is very flexible, so you can use it on the neck

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1 Where to use PV-3 cable
2 Features Wire PV-3
3 How does the PX-3
4 Wire PV-3 features: that means labeling
5 PV-3 and PUGV: As a guest changed the name
6 Major manufacturers of MF-3
7 How to choose a cable PV-3
8 Cable installation MF-3
9 Are there any analogues

Where to use PV-3 cable

This type of wiring is designed for AC voltages up to 450 V and a frequency range of 90-100 Hz. The main vein cable A current 41 passes and can be operated in the temperature range from -60ºS to + 60 ° C and humidity of 100%.

In its structure, the single cable PV3 — In its structure, the PX-3 single cable

It is used for wiring, connections lighting devices and other installations in residential buildings and industrial facilities. Among the problems to be solved with the help of this cable, there is also the organization grounding.

MF-3 cable can be found in the power cabinet, RCD and machinesWherever there is a need for a single conductor or jumper.

Important! Using PV-3 for high-end devices must be carried out with careful selection of the section.

Features Wire PV-3

Safety regulations require the conductor to put in gofrorukav or cable channels. Walling impossible MF-3 in a wall or buried in the ground, since there is a danger of accidental damage during subsequent operations.

The cable jacket is not designed for high mechanical loads

Another feature of this cable - instability of the shell to the UV. This fact is the reason for the ban on pulling it in an open space.

The main advantage of this posting - its flexibility, minimum bend radius at it - 90º. And, incidentally, this wire does not burn, it melts.

By melting shell sparks from the wires do not fall out, just this property and allows the use of such wiring in wet areas

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Andrey Vinokurov

Electrician of 5 category LLC "Petroc"

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«If you use additional equipment, PV-3 can be used for heating pipes freeze in the winter. "

How does the PX-3

Wire PV-3 is composed of a current-carrying copper conductor consisting of one or more wires and PVC insulation having monotonous coloring or color markings in the form of strips.

The structure includes a copper conductor wires consisting of one or several wires, and insulation

Stranded conductors are more marked.

Wire PV-3 features: that means labeling

Three characters in the abbreviation means the following: n - conductive, B - Vinyl sheath and 3 - class cable flexibility.

For your information! There are 6 classes of wiring flexibility. The higher the number, the softer the cable.

Modern wiring of this type have PuGV abbreviation: Pu (setting wire), F (flexible) and B (vinyl sheath). And behind these letters is the number representing a cross-section of the core.

Wire MF-3: features, characteristics, GOST — If PV3 cable is painted in yellow-green stripes, it is used for grounding. But the leash can be found in other colors: gray, green, blue and even red

PV-3 and PUGV: As a guest changed the name

When it came to the marking, you have noticed that PV-3 and PuGV were placed in a row. Why? The answer is obvious: it is technically the same product made according to the old, no longer relevant to GOST 6323-79 (PV-3) or modern GOST R 53768-2010 (PuGV).

But, in fairness, it is worth noting that the slight difference is still there - the PuGV higher flexibility. She 5th grade due to its use in the shell of flexible PVC

Major manufacturers of MF-3

Provision of this type is produced by many manufacturers. Among the most influential are:

CJSC "Elkab" - manufactures wiring with copper or aluminum screen. This product has an international certificate.
Saranskkabel - one of the most famous producers of this type.
LLC "Concord" - produces a lower wiring fire.
OOO "EM-cable" - producing power, heat-resistant cables.

How to choose a cable PV-3

The cable is selected for the following characteristics:

an electrical conductor material. Advantage is given to copper conductors which, unlike aluminum, more flexible and not subject to corrosion by interaction with air;
the size of the conductor cross-section. For copper core requires a smaller sectional dimension than for aluminum. should be selected cable in accordance with the load, with which it will work. Selection sectional diameter It can be carried out with the help of special tables.

And finally, it is essential selection wiring brand, so you should study the markings carefully, which will give information about the basic properties of the product

Cable installation MF-3

Such a cable is laid in a protective sheath to prevent mechanical damage to the fragile insulation. Before installing the need to visually assess the integrity of the coating.

How this is done in practice - in this footage:

Properly collected and for you a chain of this type will not give you trouble for a minimum of 10 years.

Are there any analogues

Consider the possible analogues wire PV-3 or PuGV, which can also be used in electrical designs:

VVG - reliable wiring, which, like MF-3, can be used in areas with high humidity. It is not designed for a strong stretch.
NYM- Harness the German standard, which has a non-combustible shell.
SPAP - cheaper analog that is used lighting devices. Produced with two or three copper conductors may be used in an open space.
PV-1 - Single for electrical cable.

And you use the cable PV-3 or its analogs? Which one do you think is the best? Write in the comments!