Types of cables and their differences

you can very soon notice that the cables and wires are used to install, mainly copper, less aluminum. Other materials with all diversity. Next, you will notice that different things happen and the structure lived these cables: lived can consist of many delays, and may be solid. Structure of lived affects the flexibility of cable, but does not affect its conductivity.

It seems that on the spectrum characteristics of cables and ends. But where does such a variety of stamps? VVG, SIPS, WSP, SHVVP-what they differ from each other? For the most part-insulation properties. Let’s talk about it more. Installation of heating cable system under hardwood floors.

Cable VVG

Marking cable VVG means: external insulation PVC conductor insulation is also made from polyvinyl chloride insulated flexible cable. Although the flexibility of the cable VVG is relative, because up to 25 kV cross-section. mm. inclusive of his veins run solid, not stranded cable.

VVG-the most common copper cable for indoor installation. It lay open, in boxes, put in the Chase. Insulation VVG provides long service life is 30 years. Number of cable VVG can meet the needs of both three-phase and single-phase networks: from two to five. floor heating cable system.

The most common color of external cable insulation VVG-black, but lately and white VVG entirely ceased to be a rarity. Insulation colour individual lived VVG corresponds to standard marking: for conductors PE = yellow-green, conductor N-blue or white with blue stripe and isolation phase runs most frequently lived purely white. calculating power and amount of heating cable floor systems.

Modification of the cable VVG NG with marks “and” LS “differ, accordingly, failure of the insulation spread burning and low smoke emission rate when exposed to fire. Exists and modification VVG, characterized by the ability to fully confront the flames over a certain time period in minutes. This modification is denoted by Latin letters FR.

In everyday life is almost non-existent cable, similar to the characteristics of the cable VVG, but with strands of aluminum-CABLE. His unpopularity is justified the restriction on the use of aluminum in distribution networks, as well as the disadvantages of aluminum cable products.

In addition, there is analogue cable VVG, manufactured according to the international standard DIN. We are talking about the cable NYM. It differs slightly, the AGM of improved performance, in particular, that has a special self-snuffing inner filler that provides sealing compounds.

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Cable (wire) CIP

CIP means “self-supporting insulated wire. This means that SIP is able to withstand significant mechanical loads. If you consider that the isolation of Sipa is made of cross-linked polyethylene, more robust dishes to moisture or direct sunlight, the scope of its use is becoming apparent: this street cable to run POWER LINES and branches for individual inputs. He slowly displaces the previously widely used for these purposes, non-insulated aluminum wire and au.

SIP is an aluminium cable conductors which do not have total isolation. Minimum cross-sectional area of SIS is 16 sq.m. mm. and maximum-150 kV. mm. In marking the wires does not directly indicate the number of lived-only item number in which all the data is encrypted. For example, CIP-1 is cable of three wires, one of which is zero carrier. CIP-2-is the cable of the four wires, one of which is zero carrier. And SIS-4 includes four current-carrying conductors, mechanical load that is distributed evenly.

As the PKN-very specific cable, for installation with its use produced the whole range of special accessories: Branch and connection clamps and anchor brackets.

Cable (cord) PVS

PVS-copper wire isolated from vinyl connecting.

Insulation PVC, both internal and external, is made of PVC. Inner conductor insulation, like VVG, has a standard marking. But veins of PVA-arc, so it is a very flexible cable. You must only take into account that the WSP strands when mounting or termination is necessary to blanch.

Given that the outer layer of vinyl round have PVA has a thickness of up to a few millimeters, this cable is perfect for portable video receivers. That is, for their “connections” with the network. That is why it is called connecting.

PVS relatively well withstand mechanical loads. Its cross-section lived varies from 0.75 up to 16 kV. mm., so this cable can be used for the manufacture of any extension and transport boxes, not operating at low temperatures. After all, cold shell PVS, unfortunately, simply bursts.

Cable (cord) SHVVP

cord in vinyl shell with conductors in vinyl insulation, flat. In General, this cable is similar to the VVG, but, unlike the latter, SHVVP arc has flexible copper conductor. So he, like PVC, is often used for extension cords. However, the isolation of SHVVP no different durability, and responsible laden with the line cord will not run.

Accordingly, section SHVVP have only small: 0.5 or 0.75 m2. mm. If he lived, equal to two or three. In addition to the feeble extension (which, incidentally, are often the cause of trouble in the economy poorly familiar with electricity), is most commonly used in automation, to power low-voltage systems.

Cable KG

KG is a flexible rubber cable with copper stranded cable conductors cross-section which varies from 0.5 up to 240 square meters. mm. Number of cores can be from one to five. KG is most commonly used in industrial plants, where there is a need to ensure flexible movable cable gland.

It is very important that the rubber insulation of the cable even in extreme cold partially retains its properties, and KG is almost always remains flexible, especially if we are talking about modifications of the CHL. So it is often used to make extensions, operating in a variety of harsh environments.

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Mounting of electrical equipment is not possible without the use of a variety of wires and cables. Modern electrical cables, wire: power cables and their varieties. Electric wire for apartment: types and characteristics. differ from power cables-first of all, these differences relate to their technical characteristics, warm floor and all about warm floors: floor heating, installation, and final difference is when installing single and two cable. Differences. Styling “snail” is a more simple method of installation.