The CIP wire (self-supporting insulated wire) is considered an excellent conductor. Its main task is the distribution of electricity of the entire AC in power networks and lighting networks, where the voltage is from 0.4 to 1 square.
Wire Sip Features
Wide applications The CIP wire received during the construction of trunk power lines, and a variety of branches to the inputs in almost all household buildings and private houses.A cable The cable of the SIP wire provides the harness twisted from the isolated veins of different phase, which are made of aluminum and have an urgent zero phase. All phase lived, equipped with special insulation, it is made of polyethylene with high pressure, it is painted black, it is precisely stability to various ultraviolet radiation. In the very center of the center of the zero is a special core, it twists around the branches of aluminum. Similar cable PVA.
Cable SIP Characteristics and Stamps
Depending on the design, the SIP wire can be divided into the following types. I would like to note that they all differ not only in design, but also by the materials they are manufactured.
Sip -1I 1a wire
They consist of conductive phase veins, they are made of aluminum. Thermoplastic insulation is covered, it is stable to practically all external influences, and is not afraid of ultraviolet. The design includes zero living, it has a bearing character. There can be both bare and simply breathed. Letter "A" and means there is an insulation or not.CIP 2 wire 2, 2-
This type of wires has a similar design, here the main difference is only in isolation, it consists of stitched polyethylene. Such cables are used for mounting power lines that have voltage up to 1000 volts. Wires are famous for their durability, and are able to withstand serious loads from many external factors.
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Another difference from the first option is that CIP 1 cable can withstand the temperature of 70 degrees, and this with ease withstands 90 degrees. In the process, the installation of the CIP cable must be paid attention to the allowable bending. It should not be less than ten outer wire diameters. Read about how to connect the CIP wire.
CIP 3 wire
It consists of one vein. It includes a steel core, it is overwhelmed with aluminum wire. If we talk for isolation, then stitched polyethylene here. It has excellent protective properties and is able to withstand any ultraviolet light.As a rule, it is used in the construction of large power lines, the cable sip mount is installed directly on the columns. The cable can withstand the temperature from - 20 to 90 degrees.
CIP 4 and SIP-4N wire
They always live from pairs, the main feature is not the zero live. The letter designation in this case means that the cable is made of aluminum alloy, if this letter is not, it means there is one-piece aluminum. Isolation is made of thermoplastic PVC, it can withstand ultraviolet and resistant to other external factors.
SIP 5 and 5-N wire
It has a similar characteristic, with a cable SIP 4. The only difference in isolation, here it is stitched from polyethylene. Such insulation makes it possible to withstand a temperature of 30% more. If we talk for the installation of a cable of the SIP, then there is no significant differences in this regard.SPECIAL CHARACTERISTICS SIP Scheme
Wire SIP Advantages and Disadvantages
Such wires are vividly stand out by the fact that they have excellent insulation, it is much better than the "naked" wires, because you can install them in more frequent cases.
Recently, they began to use more often, because the gasket and installation of CIP cables are easier and more profitable about all plans
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Isolation that is between the veins of all wires is able to protect against short circuit in the process of laying on the mills of various structures, or when it goes between trees. There are cases when "naked" wires led to a fire.
Just look at the cross section of the cable of the SIP, and you immediately understand much.
Plus, this makes it possible to lure people to install such a cable of any qualification. This will ultimately be able to save significantly.
Also read: how to determine the cross section of the SIP wire, when there is no indication tags.