Most of the situation related to the operation of the cable system and equipment are regulated, it is described in special acts. But from time to time, extraordinary situations arise, which require a revision of requirements for systems of systems and elements. And this is not at all a whim of officials, not imposing advertising products. Throughout the world, the case with cable systems is exactly the case, because in different countries they use a variety of cable options. So it will be quite difficult to list all the varieties of the cable.
Due to the use of cables in different conditions, the requirements for different properties of these cables are justifiably indicated. And in each individual case it is necessary to look for different conditions and options in order to make the network relatively inexpensive, functional reliable. Often it makes sense to use inexpensive cable for this. But if the weather conditions are difficult, then the cable must be chosen more expensive and high -quality. And in this situation a solution is considered to be a rational, which, from the point of view of savings, is not the most profitable. But at the same time, it will achieve reliable and uninterrupted energy supply.
That is why the scope of the search for new solutions is still relevant. Experts invent new cable brands and wires that could withstand the fire. There are many options for such cables, these include the power cable of the PPGNG (A) -HF and PPGGG (A) -FRHF.
Several years ago, the use of such cables was enshrined in law, it was indicated that they are required to use emergency evacuation on the emergency lighting, in elevators, to create an alarm system. But in addition to the legislative substantiation of the use of such cables, their use is now almost justified.
