There are a great variety of applications for energized fencing, from temporary graze rotation to supplementing the effectiveness of a permanent (30 years or more) fence installation.
When installations are semi-permanent or permanent it can be much more economical to build with components that will last a lifetime. Conventional electric fence insulators that are made of High-Density-Polyethylene do have a field life that is not permanent because of the destructive effects of UV Radiation from the sun.
Porcelain manufacture is an ancient process based on firing mixtures of Kaolin, Feldspar, and Quartz (or Flint). The engineered products we manufacture today are specially formulated with fillers that increase strength, nonconductive insulating properties, and when properly installed will last the lifetime of your fence.
Porcelain insulators work well with any size fence wire including polywire and polyrope.