Bernstein ESD workstations & ESD hand tools brochure Page 6
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ESD – HOW TO PROTECT YOURSELF AND YOUR COMPONENTS HOW CAN YOU PROTECT COMPONENTS? MARKINGS AND SYMBOLS You can protect ESD-sensitive components by storing, handling and packing them in a completely ESD protected environment. Precautionary measures are taken in these areas to eliminate electrostatic build-up. The difference in potential is neutralised by slowly dissipating the charge, thereby preventing a sudden discharge. This abrupt release constitutes the real danger. A very short and rapid discharge generates a very high discharge current. It is important to identify ESD-sensitive components, ESD-safe working areas and ESD-safe objects. Safe objects are identified by a black triangle on a yellow background with a stylised hand surrounded by a circular arc. In addition, the acronym EPA (ESD protected area) is added for ESD protected areas. For ESD-sensitive components, there is no black circular arc and there is a line running through the hand to indicate ESD-sensitive products. It also makes sense to use ESD inspection tags which display the date when the object was last inspected for protective effectiveness. WHAT DOES THE NORM SAY? ESD GROUNDING POINT marked grounding point for all ESD components SYMBOLS AND YOUR MEANING EPA 6 ESD SAFED ESD DANGERED ESD protected area marked ESD safe tools and objects marked endangered components and domains ESD protected marked area DIN - EN 61340-5-1/VDE 0300, Part 5-1 „Protection of electronic devices from electrostatic phenomena“ General requirements; DIN - EN 61340-5-2 / VDE 0300, Part 5-2 „Protection of electronic devices from electrostatic phenomena“, User guide; DIN - EN 61340-2-1 / VDE 0300, Part 2-1 „Measurement methods – Ability of materials and products to dissipate static electric charge“; DIN - EN 61340-4-1/ VDE 0300, Part 4-1 „Standard test methods for specific applications – Electrical resistance of floor coverings and installed floors“; DIN - EN 61340-4-3/VDE 0300, Part 4-3 „Standard test methods for specific applications – Footwear“; DIN - EN 61340-4-5/VDE 0300, Part 4-5 „Standard test methods for specific applications – Methods for characterizing the electrostatic protection of footwear and flooring in combination with a person“.
36 Pages | Valable jusqu’au 12/2023 | Page précédente | Page suivante
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