Classification NPB

Power cable APvVng (A)-LS with aluminum conductors, insulated with polyethylene silanolnosshitogo, PVC sheathed low fire risk. Power cable APvVng (A)-LS on 1kVNaznachenie: Power cable APvVng (A)-LS with aluminum conductors, insulated with polyethylene silanolnosshitogo, PVC sheathed low flammability Standard: TU-277 16.K71-98 Section: 10 – 50, 50 – 240 Number of cores: 4 5 Construction – power cable APvVng (A)-LS to 1kV 1. Conductor – aluminum, solid or stranded, circular or sector-shaped, 1 or Class 2 according to GOST 22483. 2. Insulation – silanolnosshitogo polyethylene.

Insulated conductors are multiconductor cables are the distinctive coloring. Isolation of null lived runs blue. 3. Stranding – insulated cables are twisted around a core bundle of PVC in cables of low flammability grade APvVng (A)-LS. ; Cables run four-and pyatizhilnymi and have all conductors with same cross section or a smaller cross-section conductor (zero). 4. Belt insulation – is superimposed over the twisted veins of melonapolnennoy unvulcanized rubber compound or PVC low fire in the cables mark APvVng (A)-LS with the filling of gaps between the strands. 5.

Sheath – PVC low fire risk. 6.Obmotka – superimposed over the waistband in the wires, insulation grade APvVng (A)-LS from Glass tape or tapes of stekloslyudosoderzhaschey overlap. Index (A) means that cable meets category A for flame retardance according to GOST R IEC 332-3-96. Application – power cable APvVng (A)-LS at 1 kV: To deliver and distribution of power in stationary installations for rated voltage of 1000 V at 50 Hz. Cables APvVng grade (A)-LS designed for multiple cable lines in cable installations in there is no danger of mechanical damage, including hazardous areas Class B IG, B-II, B-Ib, IIa-B. Class of fire danger on the BNP 248-97 APvVng cable (A)-LS – P1.7.2.2. Indicators of fire safety cables APvVng mark (A)-LS for Classification NPB 248-97: to limit the spread of burning bundle of cables – PRGP 1 to the limit of fire resistance – PPST 7 to limit corrosive products of combustion – PCA 2 on the toxicity of combustion products of polymeric materials – PTPM 2 Specifications – power cable APvVng (A)-LS at 1 kV: – Type of climatic design UHL, category 1 and 5 according to GOST 15150-69 – Operating temperature range: cable brand APvVng (A)-LS … .. from -40 C to 50 – Relative humidity at +35 C up to 98% – Laying and installation of cables APvVng (A)-LS is performed without preheating at temperatures not lower than: -15 C – Minimum bending radius during laying: 7.5 external diameters.

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Carbon Steel

Carbon steels are a type of instrumental staley.Oni widely used for the manufacture of metal-working tools, various accessories and parts engineering (shafts, gears, bushings, etc.), instrument making, shipbuilding and stankostroeniya.Svoystva carbon steels determined by the amount of carbon content in them and depending on this carbon tool steels are divided into grades. High-quality carbon steel (grade A) have fewer contaminants and less prone to cracking during quenching and shlifovke.Oni less dye and therefore preferable in the production of more complex form tools in steel and detaley.Uvelichenie carbon content increases its hardness, but at the same time and were not hrupkost.Uglerodistye have red hardness, ie can not retain the hardness when heated to 300-400 degrees Celsius. The original structure of carbon steels to provide them with good workability and structure meets the conditions zakalivaemost.Etim fine pearlite with uniformly distributed grains of excess tsementita.V depending on the carbon content of carbon steels have rzlichnoe application. For the manufacture of percussion instruments, such as: chisels, axes, stomestki, brand, sledge hammers and other uses carbon steels U7 and U7A. Steel U10, U10G, U10A used for tools and parts with high strength and toughness of some intended for the unstressed work wear: taps, dies, drill bits for wood, tapered and shaped gauges, bushings and clamps konduktornyh. Steel U12 and U12A – for instruments with very high hardness in the unstressed work: countersinks, reamers, taps, surgical tools, metal saws and other tools used in metalworking, woodworking, etc. Steel U13A and V13 – for high hard tool with thin blades: engraving tool, blades, scrapers, wire-drawing tool.

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