Shielded cable pig­tail elec­tro­mag­netic field visualization

“Pig­tail” is short wire cre­ated by twist­ing cable shield­ing at the end of shielded cable. Good EMC engi­neer­ing praxis is– con­nect shield­ing in 3600 ter­mi­na­tion. But not always elec­tronic engi­neers, com­pli­ance engi­neers etc. take care of proper ter­mi­na­tion. There­fore, it leads to fails in EMC test­ing lab. There are few prac­ti­cal papers devoted to this topic. In EMC con­fer­ence prac­ti­cal ses­sions this topic is pointed out a lot. There are few the­o­ret­i­cal papers regard­ing proper shielded cable ter­mi­na­tion to pass EMC test­ing in elec­tro­mag­netic com­pat­i­bil­ity lab.

Tex­tiles for shield­ing elec­tro­mag­netic fields (realy shielding?)

In marked there are lot of tex­tile promis­ing to pro­tect from Elec­tro­mag­netic fields (EMF). There are bunch of sites sell­ing them. All of tex­tiles are char­ac­ter­ized like: shield­ing in dB, con­duc­tive sur­face Ohm/​square, pro­tec­tion 99.5%, pro­tects from EMF, etc. But there are only few prod­ucts that are really tested and only frac­tion of them are tested using valid/​standardized methods.