Pepro is the manufacturer of shielded aluminum enclosures to protect computers and sensitive electronic equipment when magnetic interference is present
LIGHTNING
RFI
EMP
EMC
EMI
U.S. Patent
5,749,178
Let Pepro surround your equipment with security and silence!
Lightning Pulse Shielding Effectiveness Tests
| Conducted by: LIGHTNING TECHNOLOGIES INC. PITTSFIELD, MASS. |
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Lightning Technologies is known internationally. Their engineers are leaders in the development of new lightning protection standards and verification test methods. They maintain one of the most well-equipped lightning simulation and test laboratories in the world. |
Test Results For Magnetic Field Shielding Effectiveness
Circular coils carrying pulse currents of about 5000 amperes peak were used to generate a time varying magnetic field, creating at the center of the test fixture a calculated field intensity of about 900 amperes.
The waveshape and amplitude were representative of that produced by a 50,000 ampere lightning flash 30 feet from the center of the test shelter.
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This test data implies an overall magnetic field shielding effectiveness of 60dB.
Test Results For Current Injected Directly Onto Shelter
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With the 18,000 amp surge current applied directly onto the shelter, voltages induced in the magnetic field sensor were .05 to .150 volts
Electromagnetic Shielding Effectiveness Test
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NTS is the largest independent testing laboratory in the United States, with more than 300 scientists, engineers, technicians, quality control and administrative personnel staffing eleven testing facilities nationwide. |
Test Results For Electromagnetic Shielding Effectiveness
Test was performed following the procedures established in IEEE-STD-299
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| Antennae Positioning | Signal Generator, Amplifier, and Receiver |
The transmitting antenna was placed inside the
shelter with the receiver antenna located outside. The RF energy was then supplied to the
internal antenna while transmitting at the receiver antenna located outside.
The test data produced a shielding effectiveness rating of 80 dB or higher from 20 MHz to 1 GHz
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