The copper conductors type THHN are used for power and lighting circuits in industrial, commercial and residential facilities, they are specially suitable for special installations through difficult ducts and to be used in abrasive zones or polluted with oils, grease, gasoline, etc. and other corrosive chemical substances as paints, solvents, etc., This type of conductor when it is used as THHN it can be used in dry places with maximum temperature of operation of 90 ºC. Regarding the voltage of service, for all the applications, it is of 600 V.
STANDARD :
Aluminum THHN Wire Standard
The aluminum conductors type THHN meets standards UL83
CONSTRUCTION :
Aluminum THHN Wire Construction
THWN THHN aluminum wire is made of aluminum conductor , they are also insulated with an uniform layer of Chloride of Polyvinyl (PVC) thermoplastic material resistant to the moisture and the heat, over which it is applied a protector coating of Nylon or Polyamide. They can be supplied in varied colors according to their size and with different packaging.
Aluminum Conductor Insulation of Thermoplastic Material, PVC 600V. - 90 °C Nylon Jacket