For some time now, in many highly specialised fields (such as aerospace, aeronautical, automobile, etc.), new materials – plastic and resin – have been synthesized and endowed with highly and specific innovative properties. For example, resistance to chemical and atmospheric agents; they are lightweight, flexible and offer excellent physical and mechanical resistance to several stresses, including repetitive over the long-term. Given their ability to offer similar advantages, these technological materials quickly replaced the use of metals which do not offer the same potential.
F/ART was the first in the world to introduce this sort of technology in the 80s in the production of neon transformers. After lengthy, serious and extensive research, backed up by numerous strict and long-lasting technical tests, the company created its exclusive formula and working procedure, highly specialised and at the cutting edge of its field. This led to totally abandoning the old transformer construction concept – based on the old, unreliable and unattractive metal box – thereby obtaining a series of important technological benefits for their customers and in numerous areas. For example, in terms of:
- Design: with the immediate and total impossibility for rust to form due to the resin shell, it guarantees the long-lasting original appearance to the sign with no unattractive alterations.
- Resistance: unalterable over time, with excellent resistance to sunrays, temperature jumps and, generally, all atmospheric actions.
- Excellent electric insulation: which is proved by surpassing 30 hours working with double-voltage power feed (i.e. 460 volts carried to transformers built for 230 volts), dual frequency and secondary frequency when empty (open circuit). Furthermore a transformer with 15,000 volts output was able to provide energy for more than 30 hours at 30,000 volts without any drop in power.
- Thermal shock resistance; the products were tested in climatic chambers with ambients between -40° C and + 40° C and short-circuit functions for more than 10 cycles without any drop in power, these results led us to become one of the major exporters to Russia, Norway (i.e. countries with very cold climates (and also the UAE, Indonesia and Australia (i.e. countries with tropical and subtropical climates).
- Surface current resistance: i.e. the ability to fully satisfy the requirements of IEC 1050, EN 61050, IEC 112 standards with 600 volt tests (PTI 600); furthermore, the transformers were tested in laboratories with the effective voltage used, i.e. taking them to a charge of 15,000 volts and currents above 180 mA without causing any sort of carbonization on the special “technical resin”.
Moreover, using this special exclusive resin means that all those problems have finally been eliminated that are typical with the old style transformers, those closed inside metal boxes. In fact, their working life was considerably reduced due to the metal because of the formation of:
- Cracks in the powder resins used for filling them.
- Condensation between the metal box (cold) and the transformer (which is hot when it is working), which caused liquid to form on the coils.
- Detachment of the various materials used in the production, i.e. the metal, resin and impregnation paints.
Using “Technical-resin”, and the special “high-vacuum” procedure has enabled the company to offer the market the most advanced design and safe products approved by institutions, including VDE and IMQ, and therefore the update of the relative standards.