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Iriss has announced that its VPFR infrared window has passed 63kA, 15kV, 30-cycle arc resistance tests conducted to the required IEEE C37.20.7 (equivalent to IEC 62271-200) standards.

The tests were carried out on Eaton VC-W Metalclad switchgear at the KEMA Powertest Lab in Pennsylvania.

Arc flash incidents, which are potentially catastrophic electrical short circuits, can produce temperatures in excess of 35,000F, causing explosions or ‘arc blasts’ that create molten shrapnel carried by pressure waves measured in thousands of pounds of force.

In addition to the damage to plant assets and lost production time, more than 2,000 workers are said to require treatment at burn centres each year as a result of serious arc flash incidents occurring daily across North America alone.

Standards organisations such as IEC and IEEE have prescribed test procedures to certify certain types of electrical distribution equipment, such as metal-clad switchgear, for resistance to the effects of arcing due to an internal fault.

The Iriss VPFR infrared windows, recently used as accessories in a 63kA, 15kV, 30-cycle arc resistance test and the windows, as part of the switchgear system, were shown to contain the effects of the blast.

VPFR infrared window passes arc resistance tests

Iriss has announced that its VPFR infrared window has passed 63kA, 15kV, 30-cycle arc resistance tests conducted to the required IEEE C37.20.7 (equivalent to IEC 62271-200) standards.

The tests were carried out on Eaton VC-W Metalclad switchgear at the KEMA Powertest Lab in Pennsylvania.

Arc flash incidents, which are potentially catastrophic electrical short circuits, can produce temperatures in excess of 35,000F, causing explosions or ‘arc blasts’ that create molten shrapnel carried by pressure waves measured in thousands of pounds of force.

In addition to the damage to plant assets and lost production time, more than 2,000 workers are said to require treatment at burn centres each year as a result of serious arc flash incidents occurring daily across North America alone.

Standards organisations such as IEC and IEEE have prescribed test procedures to certify certain types of electrical distribution equipment, such as metal-clad switchgear, for resistance to the effects of arcing due to an internal fault.

The Iriss VPFR infrared windows, recently used as accessories in a 63kA, 15kV, 30-cycle arc resistance test and the windows, as part of the switchgear system, were shown to contain the effects of the blast.

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