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Protective untriggered gap Ð-79

Protective untriggered gap P-79 is designed to protect transmitting devices, receiving devices and antenna-feeder devices from the damages from lightning strokes and other pulse surge effects.

 

Basic electric parameters of protective untriggered gap Ð-79:

The name of the parameter, unit of measure

Norm

no less than

no more than

Puncture potential, static, kV

0,9

1,2

Puncture potential, dynamic, kV (with the speed of voltage increase on the electrodes of the surge absorber no more than 2 kV/microsecond)

 

2

Time of disruption lag, microsecond (with the speed of voltage increase on the electrodes of the surge absorber no more than 2 kV/microsecond)

 

0.5

Maintaining voltage with maximum current, V

 

1000

Puncture potential in the impulse with the frequency 2-6 Megahertz, V

 

500

Static interelectrode capacitance, picofarad

 

8
Dielectric resistance, Megaohm 100  

 

Protective untriggered gap P-79 Protective untriggered gap P-79

 

Instructions on the operation of protective untriggered gap Ð-79:

  • While operating protective untriggered gap Ð-79 parameter points shouldn't overrate the admissible values.
  • On-position of protective untriggered gap – any position.
  • Cooling down – natural cooling.
  • Protective untriggered gap Ð-79 is fixed in the device on the cathode flange with the help of 4 screws M3.
    We recommend to joint to the anode of the gap with the help of a screw using the hole on the anode button.
  • While binding and connecting of the gap in the device the power used shouldn't lead to the curve of button.

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