Description

The H.VIR® 85 type 21 is the most frequently used infrared window of the H.VIR® range, thus meeting the most frequent requirements regarding thermographic inspection of electrical equipment. It allows you to carry out preventive maintenance with the help of an infrared camera in electrical conditions of normal charge (low and high voltage).

You can install the H.VIR® 85 type 21 IR window to new equipment or retrofit it to existing equipment (it will last the full life of the equipment). The H.VIR® 85 type 21, like other optical windows of the H.VIR® range, allows you to prevent any risks associated with electrical equipment without pre-inspection.

KEY FEATURES :-

Operation from 0.3 µm to 13 µm

• Sensitivity to UV: none
• Quality of optical window:
  • Parallelism: < 3 µm
  • Flatness: 5(2)
  • Surface condition: P4 (S/D: 20/ 40)

• Operating temperature -40°C + 70°C
• Electrical insulation of the frame:
  • Resistivity 4 x 10 15 ohms cm2/m at 20°C
  • 8 x 10 15 ohms cm2/m at 100°C