SIP - views and differences

Progress does not stand still and to replace conventional bare wire brand AS came SIP (self-supporting insulated wire). Now, instead of a whole web of four separate wires coming accurate design hanging on the pole. I will tell in this material, what types of products there, and voiced their basic parameters and tell what they are different.

deciphering abbreviations

You already know that SIP stands for aerial bundled cable. But in the product name can be seen:

"BUT" - the existence of this letter informs about the following: a neutral conductor as a protective coating.

"H" - informs that the wires are made of aluminum alloy.

"T" - informs that the insulation is calculated on the permissible continuous heating at 90 degrees and temporarily holds overheating to 120 degrees.

Design features

At the moment, there are brands of wires: STS-1, 1A, 2, 2A, -3, -4, -4, -5, - 5N. Let us now look at each type of detail.

STS-1

This type of wire is produced for voltage 380. Core material performance aluminum or aluminum alloy. Wherein three strands are packaged in light-resistant polyethylene, characterized by high resistance to UV exposure. A fourth (zero) lived packed in a sheath and bears still bearing function. If an abbreviation is present the letter "A", it means that the neutral conductor is packaged in a protective layer.

Holding a long heating to 70 degrees.

CIP-2

Mark IIB - IIB and 2 - 2A - insulated all four cores, insulation, "cross-linked" polyethylene. This product is designed to 1 kV. Mainly used for the production of trunk lines. Holding heating up to 90 degrees.

IIB-3

Mark SIP - 3 made of separate conductors, which is located inside the iron core. He also covered by "cross-linked" polyethylene. The calculated voltage to 20 kV. The normal temperature of the conductor is 70 degrees. A long corridor temperatures allowable temperature range from -20 to +90 degrees.

SIP - 4

brand wire SIP-4 and SIP-4N implemented from the pair lived in this product neutral conductor is not provided.

"H" informs that the wires are made of aluminum alloy, while its absence indicates pure aluminum. Insulation material - thermoplastic PVC.

SIP - 5

wire marking STS-5 and SIP-5N of its design features are identical with SIP-4, The only difference between them - the insulating material. In SIP -5 used "cross-linked" polyethylene, which allows a 30 percent increase long allowable temperature. Basically, such a wire is used to make entries in the living areas and the implementation of urban lighting.

Rated at 2.5 kV, it has UHL (moderately cold climate).

Summary table of specifications wires SIPs

What is the advantage of using the CIP is

SIP makes it possible to get rid of the cobwebs of wires, because the compact layout and allows the core insulation significantly reduce the number of short circuits associated with overlapping live tree branches or overlapping of living. The same wires are well tolerated ice, because they are designed to "reset" adhering crust of ice.

Installation of SIPA is also very simple and does not require additional costs in the form of insulators.

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