In the CEI 20-14 standard developed by the Italian Electrotechnical Committee (CEI), according to the current building product legal regulations (rated voltages U0/U 0,6/1 to U0/U 18/3 kV AC), with special requirements for fire reaction performance Requirements for thermoplastic (PVC) insulated power cables are described.
PVC insulated cables are generally known as rubber cables. These types of cables were first used in the late 1970s with natural rubber insulation and sheathing. However, today different types of synthetic rubber cables are produced. Elastomeric cables are manufactured today. In the production of these synthetic cables, technologically advanced polymers, such as halogen-free, non-toxic, heat-resistant, oil-resistant, and fire-retardant compounds, are specially formulated.
PVC insulated or sheathed cable is flame retardant, which is important for electrical cables in most applications. With the developing technologies, PVC is made resistant to a wide variety of chemicals, including oils, acids and alkalis, and it is made strong, durable and resistant to abrasion. The addition of various additives provides use typically in the temperature range of minus 40 to plus 105 degrees Celsius, as well as resistance to sunlight, reduced smoke emissions and improved water resistance.
Cables as insulation material is a thermoplastic and thermoset material, usually between cross-linked polyethylene (XLPE) and polyvinyl chloride (PVC). There are cross-linked thermoset versions of PVC, typically with electron beam technology, but they are costly to use. It is mostly used in industries such as defense and automotive, that is, in high-specification applications. Thermoset or cross-linked PVC has improved temperature resistance, is more durable, and has a better dielectric strength. This reduces the overall cable size and a thinner coating or insulation layer is applied.
Among the numerous test, measurement, analysis and evaluation studies it has given for businesses in various sectors, our organization, with its trained and expert staff and advanced technological equipment, has tested for PVC insulated cables with nominal voltages between 20 kV and 14 kV within the scope of CEI 1-3 standard. also provides services.
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