In the past, we have delivered many different kind of Multi Flash Copper rooms:

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1 We at Metric Industrial A/S have 25 Years experience with building Copper faraday cage, either as glued on to the inner building walls, or make as panel construction, the panel construction is mostly for the MRI application where the required frequency is up to 500 MHz with attenuation up to db we offering a turnkey s solution incl. the components below Power & signal filters Waveguides for data communication Shielded doors Windows Shielded ventilation panels Pipes for water, compress air etc. Inner lined wall, ceiling and floor Electrical installation Ventilation system Fire detecting system In the past, we have delivered many different kind of Multi Flash Copper rooms: Inner lined with acoustic panel Test room for the Mobil industries Test room for the semiconductor manufactory Secret room for the intelligent Computer room Antenna chambers And ETC. Wall covering system (Multi Flash-copper) Multi Flash-Copper foils have high attenuation properties in the electrical field (up to 120 db) as well as in the magnetic field (see shielding performance table).

2 It is easy to apply, like heavy wallpaper, there has to be used special adhesive for walls, ceilings and floors. The interior finish can be plaster board, on a wood framing, glued to the wall The 0.08 mm thick Multi Flash-Copper is used to transform regular rooms into shielded rooms; it has excellent shielding performance even at low frequencies. The standard width of Multi Flash-Copper is 915 mm and the foil is delivered on rolls from 60`long, depending of the thickness, the thickness can be delivered in 3, 5 and 7 oz Overlap options Multi Flash Copper is delivered with clean edge of 15 mm, for easy installation For the joints you can use a 50 mm overlap with seaming copper tape with a conductive self-adhesive to apply over the joints in top picture 1, or use a seaming /copper tape with a conductive self-adhesive to apply over the joints edge / edge picture 3. For extra high performance you can fully solder the joint, what is difficult on walls and ceiling Picture 2 Advantages Cost-effective / take up less space Light weigt / High flor load Can be constructed with local labor, and a trained supervisor Standard interior finish possible like plasterboard Maintenance free Delivery with acceptance measurement report

3 Shielding performance Basic values for the material and Mu-copper cage Field Frequency Multi-Flash copper H 1 khz 22 db H 10 khz 33 db H 200 khz 68 db E 10 khz >120 db E 200 khz >120 db E 1 MHz >120 db E 18 MHz >120 db P 400 MHz >120 db P 1 GHz >120 db Shielding performance of Multi Flash copper foil 0.08 mm thick Measurements according to MIL STD 285 and the following situation:

4 Multi Flash copper foil 0.08 mm thick taped with 50mm overlap Dimensions 10 x 6 x 4 m 1 Door 0,9 x 2.1 m 1 sliding door special construction 2.0 x 2.1 m 4 Ventilation panels 1 Power filters You can create a Faraday cage with high shielding performance by yourself in an economic way, using local labor with trained supervisor. This is possible in existing buildings as well as in new ones, without loss space. Depending on the type and quality of the doors and windows used, attenuation levels are from 60 db up to 120 db in the E-field, vent panels, Power / Signal filters have normally attenuation levels of 120 db Ventilation For ventilation we have honeycomb ventilation panels in different size, the pressure drop table are below. Special for the Multi Flash copper faraday cages we can deliver honeycomb vent panels with a base flap around. Can be easily soldered into the Multi Flash copper faraday cage.

5 For other honeycomb ventilation panels see our honeycomb

6 Ceiling construction Ceiling construction with beams for, external fixing

7 Applications Server rooms EMC test rooms Medical examination rooms MRI, EEG, EMG & EVP Radar protection/airport Military EMC protection Board room shielding Buildings for intelligente Agencys MRI rooms Modified RF Shielded Door When a lower performance db is acceptable we can retrofit your existing door. The doors will be laminated with Mulit Flash Copper foil, will be equipped with gaskets on top and sides, the bottom is provided with a conductive gasket and doorstep. Modification is possible for both swing and sliding doors. MRI Shielding door

8 Components In addition to EMI shielded doors and windows, the screened rooms can be equipped with the following components: Shielded doors Shielded windows Shielded ventilation panels Power and signal filters High Performance Shielded door