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Interference sources such as laser equipment, relays, computer terminals, HF generators, radar, lightning or NEPM can generate magnetic or electric fields. The induced interference currents can affect the performance of equipment fitted with sensitive microelectronics, such as control systems, process computers and electronic data processing systems, or even cause failure of that equipment. It is therefore vital to shield microelectronic equipment from such interference currents. For this purpose, CSD has developed a complete range of conductive sealing systems which suppress high-frequency sheath currents on cable and pipe shielding. |
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CSDR HF conduit unit
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| EMP AND EMI SAFE CONDUITS
VIRTUALLY CORROSION-PROOF
SIMPLE TO INSTALL |
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The CSD HF conduit unit is used for the EMP and EMI safe ducting of single cables or several different-diameter cables. The unit is available in two types.
For single cable penetrations in steel structures, the HF conduit unit consists of two stainless steel flanged conduit pipes, one copper earthing plate, one gasket and two CSD sealing plugs.
For multiple cable conduits, the HF conduit unit consists of one stainless steel flanged frame with module plate, or a flanged frame combination with several module plates, one or more stainless steel counter-frames with module plates, several copper earthing plates, one or more gaskets, several CSD multiple conduit modules and several CSD sealing plugs.
CSD HF conduit units feature very good damping performance with regard to sheath currents. Because the copper earthing plates are enclosed air-tight between the sealing plugs and the multiple conduit modules, the occurrence of corrosion is virtually impossible. The conduit unit is furthermore extremely simple to install and is inspectable at all times |
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BEESEALR
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| CONDUCTIVE-SEALING
GAS, WATER AND DUST TIGHT |
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The BEESEAL system, type EMC is used where several cables or pipes of different diameters have to be ducted conductively. The BEESEAL transit system is gas and water tight up to excess pressures of 1 bar. In contrast to many other sealing systems, BEESEAL penetrations do not require to be disassembled for adding an extra cable.
To differentiate them clearly from the standard type BEESEAL transit system, type EMC carry red markings on the flange side. This also facilitates inspections.
The BEESEAL system can also be used where existing cable penetrations have to be sealed gas and water tight afterwards. |
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CSDR plugs, type EMC
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| ACONDUCTIVE-SEALING
EASY TO INSTALL
GAS, WATER AND DUST TIGHT |
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The CSD EMC sealing plugs can be used for conductive sealing of both pipe penetrations and cable penetrations.To obtain conductive sealing of pipe penetrations, the EMC sealing plug is pushed into the space between the outer pipe and the ducted pipe. The trapezium-shaped O-rings on the inside of the sealing plug then make full contact with the surface of the ducted pipe. For cable penetrations, the EMC sealing plug must make contact with the metal shielding of the cable. To ensure effective conductivity, the shielding should be wrapped in conductive tape of the same rubber type as that of the sealing plugs.
The familiar serrated profile on the outside and the flat trapezium-shaped O-rings on the inside of the sealing plug give a sealing power of 1 - 2 bar. This means that the conductive EMC penetration is also gas and water tight.
To differentiate them clearly from the standard EPDM type - which is also coloured black - CSD EMC sealing plugs, transit plugs and transit modules carry red markings on the flange side. This also facilitates inspections. |
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