SHIELDING - ELECTROMAGNETIC COMPATIBILITY (EMC) TECHNICAL DATA SINCE THE PROVISIONS OF THE ELECTROMAGNETIC COMPATIBILITY, EMC IN THE RELEVANT EQUIPMENT TO ADD MORE MEANING.
Equipment is subjeet to the provisions:
1, the ocurenee of elctronmagnetic interference must be limited, otherwise such equipment can not be produeed.
2, if the device has good anti-lectromagnetie interference performance, its production is not restricted.
Equipment manufacturers to meet the requirements, increasing demand for the use of shielded connectors, The shiclded cable can be connected using a conductive housing connected to a shielded cablc. Care should be taken when using the circular conncctor to crfully introducc the shield of the cable to the shicld end of the concctor, Therefore, it is preferablc to have a 360 degrce circular support. If the shield is scurely conected to the conductive housing, a good shielding valu can be achieved.
Pure plastic conncctors do not have a metal housing. The shicld of the cable can not be connccted drctly.
Summary: it is important to achieve the integrity of the plug and socket connection between, and make it re-conmection between the instrument base.
Firc 94V levcl clssification
Plastie flame retardant grade from HB, V-2, V-1 to V-0 step by step increments:
HB: UL94 standard in the lowest flame retardant rating. For samples of3 to 13 mm thick, the burning rate is less than 40 mm per minute; for samples less than 3 mm thick, the burming rate is less than 70 mm per minute; or extinguished before the 100 mm mark.
V-2: After two 10-second burming tests on the sample, the flame is extinguished in 60 seconds. There may be a buming substance that falls off.
V-1: After two 10-second burning tests on the sample, the flame is extinguished in 60 seconds. Can not have combustion material fall
V-0: The flame is extinguished within 30 seconds afer two 10-second burning tests on the sample. Can not have combustion mater.