Conductors, type sis, for switchboard wiring, have a maximum operating temperature of:

Conductors, type SIS, for switchboard wiring, have a maximum operating temperature of: 194 degree Fahrenheit.

Explanation:

A Panelboard or Switchboard wire is known as SIS.This type of SIS, have tin coating and it is manufactured with a copper conductor insulation.  It is helpful for facilitating solder and also it will be easy to fix them in tighter spaces because for their flexible nature.

As they are insulated with XLPE  they can be used at a voltage operating at 600 V and can be used at a temperature of 194 degree Fahrenheit or 90 degree Celsius. of The XLPE(Cross-Linked Polyethylene) insulation is rated for use at 90°C in either wet or dry locations at an operating voltage of 600 V. They can be used for distribution, panel and switch board wiring.

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