AECTP 500 PDF

It is well known that in the military industry there are extremely stringent requirements for robustness and documentation. MIL-STD contains about 20 test parameters, of which 10—12 are relevant for the majority of the products see the example in figure 1. Simple rules - but many requirements for the military industry. When industry requirements are the strictest Because military products are normally tested and qualified in accordance with the MIL standards, it could be obvious to use the military EMC standards as the basis for the CE mark. The MIL standards are in fact not included with the harmonised standards for use in the EU: And there is little possibility of the MIL standards becoming harmonised, since they are not comprehensive enough. The requirements for electromagnetic radiation in the MIL standards can be up to 10 or 20 times more stringent than the EN standards.

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It is well known that in the military industry there are extremely stringent requirements for robustness and documentation. MIL-STD contains about 20 test parameters, of which 10—12 are relevant for the majority of the products see the example in figure 1. Simple rules - but many requirements for the military industry. When industry requirements are the strictest Because military products are normally tested and qualified in accordance with the MIL standards, it could be obvious to use the military EMC standards as the basis for the CE mark.

The MIL standards are in fact not included with the harmonised standards for use in the EU: And there is little possibility of the MIL standards becoming harmonised, since they are not comprehensive enough. The requirements for electromagnetic radiation in the MIL standards can be up to 10 or 20 times more stringent than the EN standards. But for transients, the requirements are low in relation to the civilian burst and surge transients at 2 kV or 4 kV see figure 2.

The most general challenges Expensive MIL-certified products for example PCs can be shown to have a weaker functional performance less RAM and lower clock frequency than equivalent and much cheaper civilian products. It is natural to think that the civilian product should be used, because of higher performance and low prices. Pack the COTS product! A solution to the problem of robustness would be to strengthen the COTS product.

If you can find an electrically and mechanically robust product, maybe it can be installed in an environment-proof and shockproof cabinet, which can absorb and protect the product against the demanding environment. A metal enclosure would improve the EMC conditions. But the key that opens the door to many markets can be if the manufacturers can refer to a widely accepted specification, such as AECPT The article was published in The article is a translation of a short version of an article published in Aktuel Elektronik no.

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