Insulating cardboard Insulating
( pressboard ) - a variety of materials for electrical insulation, which is made of unbleached kraft pulp type (sometimes with the addition of cotton cellulose) in one of two ways: rolling or calendering.The resulting sheet has a smooth tight usually walnut color varies in thickness (depending on the grade) and density.In general, based on the name of the first (but not edintsvennoe) application of insulation to be found in the electrical system.Of greatest interest is Insulating , produced in accordance with GOST 2824-86 (EV board), which is designed for electrical components and individual elements in the electric plant with oil filling and continuous working temperature up to 105 degrees.Variable thickness of the material determines its use in equipment with different characteristics: or a higher voltage (up to 750kV), or a high working temperatures (up to 105 degrees), and may also vary improved resistance to surface discharge.Insulating brand "EV" in thickness from 0.1 to 0.8mm can often be found in rolls of a width of 1100mm.A 0.8 to 2.5 mm - in sheets of 1050 x (1000 - 1100mm).
Cardboard patterns
Electrical - not only the scope of pressboard (another name for this material), is widely used so-called cardboard patterns - in the clothing, leather goods, textile production.This brand cardboard - EVTNP, which is produced in accordance with TU 5443-020-00278882-2009, the most in demand Insulating Company production of "proletarian" (g Suraż) - " Surazh cardboard ".Insulating cardboard EVTNP called general purpose.It is suitable for the same electrical insulation (voltage up to 1000V), and for many other industries, mainly light industry.As can be seen from the thickness of 0.1 to 2.5mm sheets, it all depends on the application: for example, for the manufacture of patterns in the clothing industry (mold - Pattern made of paper or cardboard) is thickened grade (up to 2.5mm), because these products requirehigh wear resistance and durability, with frequent handling.At the same time sealing grade (thickness up to 0.5mm) do not require indicators such as wear resistance, they are increased requirements for strength and density of the material.Over the years, this material has proven itself to these industries, because of its technical characteristics, as well as reasonable prices.Insulating brand "EVTNP" comes in rolls or sheets 1050 x (1000 - 1100mm).
