Chapter3InstallationPreparation
severalpoints(Makesurethecopperfoilsarepressedbetweenthecementoorand
semi-conductiveoorandisconnectedwiththegroundingcable).
lEMIProtectionRequirements
Electriceldstrengthis300mV/mandmagneticeldstrengthmustnotexceed11GS.
lDust-ProofRequirements
àThedensityofdustparticlewhosediameterislargerthan5μmmustbelessthan
30000/m
3
.
àDustparticlesmustbenon-conductive,non-magneticinductive,and
non-corrosive.
Thefollowingmeasuresarerecommendedfordust-proofinthelab:
àDoorsandwindowsmustbesealed.Theexternalwindowsmustbesealedwith
double-layerglassandthedoorsmustbesealedwithdust-proofsealingstrips.
Theidealconditionistosealthelabwithashutterequippedwithadustlter
device.
àWorkclothesandslippersmustbekeptcleanandchangedregularly.
àItisrecommendedtoplaceoperationequipmentinouterroom,thusavoiding
frequentaccessandopening/closingoflabdoor.
àKeepahigherrelativehumiditywithinthepermissiblerangeinthelabtoreduce
staticelectricityadsorptionofdust.
àWallsandceilingofthelabmustbepaintedorpastedwithwallpaper.Itisbetter
touselusterlesspaint.
lTemperatureandHumidityRequirements
ThedetailedrequirementstotemperatureandhumidityareshowninT able3-1.
Table3-1TemperatureandHumidityRequirements
TemperatureRelativeHumidity
Items
Long-Term
Working
Condition(Note
1)
Short-Term
Working
Condition(Note
2)
Long-Term
Working
Conditions
Short-Term
Working
Conditions
Range15℃~30℃-5℃~45℃40%~65%20%~90%
3-3
SJ-20110803091932-002|2011-08-30(R2.0)ZTEProprietaryandCondential