Choose cable or GOST TU, where catch and what is the difference
Now going into any electrical store, an ordinary man in the street can just dizzy from the abundance of the proposed range. Both the buyer to the seller a question: Do you need a cable? Answer: I'm good. And the question is: Do you according to GOST or TU? In general, it can enter into a stupor. So let's understand and respond in detail to these important questions.
Any work associated with wiring and electricity must be produced using exclusively high-quality components.
What is the GOST and TU
Let's start all the same will understand and realize what GOST and TU. So, GOST - state standards, even in Soviet times was required for all manufactured products, and it clearly We write all the technical conditions that are required to take account of manufacturing plants in the production of any kind goods. And the observance of these parameters had to follow special bodies.
And here TU - technical conditions, it is designed specifically for the company and the specific type of product. And then there is no strict control. That is then the responsibility falls on the shoulders of the manufacturer. Here begins the whole song, as each manufacturer wants to get as much profit as possible, and how to get more, but save on raw materials.
What has been the saving
Manufacturers save on everything. Reduce the thickness of insulating material increases the percentage of impurities in the used copper, and the worst reduce the thickness of the core. So if you see a wire made of TU section in 2,5 square millimeter, it is actually his real cross-section can be 2 mm square. And the most surprising thing that will not be a violation, since this deviation is indicated as allowable in the TU which the manufacturer has developed for its products.
Therefore, 99 cases of 100 Made by cable TUIt will be much worse in quality than the wire of the same cross-section implemented by GOSTy.
It turns out that even if the goods made by TU and it will be much cheaper Gostovskaya I highly do not recommend it for purchase. But if there is a situation that you simply have no options and there is only the product of those conditions, the purchase of wire with dual marginThat is, if you needed a wire 2,5 square take 4 square, if needed 1,5 then take 2,5 square. Do not skimp on materials and then your wiring or carrying serve long and trouble-free long time.
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