Insulation is then applied to each wire individually, and then again as a pair. The insulation may be extruded, taped, wrapped, served, braided, or applied using other means depending on insulation material and desired end characteristics. This insulation isolates each wire from the other electrically and may also serve to identify the calibration type as well as identify the polarity of each wire. Some types of high temperature insulation cannot accept color coding and tracer materials are added for identification. Insulation type is highly dependent on the end application with the maximum usage temperature and the atmosphere being the driving factors. Other factors when choosing insulation material are flexibility, abrasion, electromagnetic interference, In addition to the outer insulation, other layers may be added like foils or stainless-steel braiding to provide electrical shielding or abrasion resistance. Cleveland Electric Laboratories maintains a large inventory of many stock wire configurations. Custom combinations are available upon request.
Thermocouple and Extension wire assemblies are available in long, continuous lengths and are custom built to specification. Cold end termination options include stripped, bare ends, industry-standard plugs/jacks, or custom options.