Customers should be aware of which particular standard their finished product will be required to meet and make certain that they specify transformers and other components accordingly. In the U.S., some cities have their own requirements. For example, the City of Los Angeles, CA, because it is an earthquake zone, has set certain standards for transformers that are more stringent than the general standards. This includes requirements for tamper-proof thermal protection and nonflammable materials. We can modify our transformer designs and manufacturing processes to enable customers to meet Los Angeles standards as well as any safety standard requirements anywhere in the world.
Magnetic wire is an unglamourous but important part of nearly every transformer.
Whether wound on bobbins or on tubes, using automated or manual equipment, proper selection and care of magnetic wire in the design and manufacturing process helps ensure that the final product will do the job it's designed for. Magnetic wire consists of a solid copper conductor, circular in cross-section, coated with one or two layers of insulating polymer. We normally use gauges that range in integral values from 8 to 44. Resistance of a length of a wire, and therefore its power dissipation, is inversely proportional to its cross-sectional area. Thus, transformer design is a tradeoff between wire size and power dissipation.