ABBUFC784AE1013BHE003688R0101UFC784AE1013BHE003688R0101UFC784AE1013BHE003688R0101***提供：PLC可编程控制系统，分散控制系统（DCS）安全仪表系统（SIS），ESD系统，振动监测系统，汽轮机控制压缩机组控制系统（CCS）等各类工控系统部件系统里的PLC模块，DCS模块，CPU模块，IO模块，DO模块，AI模块，DI模块，网络通信模块，以太网模块，运动控制模块，模拟量输入模块，模拟量输出模块，数字输入模块，数字输出模块，冗余模块，电源模块，继电器输出模块，继电器输入模块，处理器模块防爆电器的连接外壳的紧固螺栓除承受必要的锁紧力外，还要承受***压力。本文主要介绍防爆电器的紧固螺栓拉力的计算公式，具体如下：Q=1.3Qo(N)对于止口结构Q=1.1Qo(N)Qo=QP／Z(N)QP=PA式中Qo——每个螺栓的计算应力，N；QP——***时螺栓承受的总压力，N；Z——螺栓个数；P——计入***时承受的压应力，MPa，对于ⅡC级取1.5MPa，其余取1.0MPa；A——承受压力的有效面积，m2。防爆电器外壳紧固螺栓的间距，与外壳件的形状、材质、有无筋均有关系。对于平面结构，ⅡC级一般不大于70～80mm，其他隔爆等级一般不大于120mm。止口结构时，一般不大于140mm。螺栓的个数，对于平面结构，一般不少于4个，止口结构不应少于3个。防爆电器螺栓的拧入深度，对于铸铁外壳，***少为1.25～1.5倍螺栓直径；钢板外壳，***少为1.0倍螺栓直径。外壳紧固螺栓的螺纹余量：螺栓拧紧后还须留有大于2倍防松垫圈厚度的剩余螺纹，以便垫圈丢失后仍能将外壳紧固。外壳上的不透螺孔，其周围及底部的厚度应大于螺孔直径的1／3，但不得小于3mm。NC6108UFX7110CISCOASA5540CISCO2951ME-C6524GT-8SJZRCR-NPP01B-16ES5103-8MA036ES7307-1KA02-0AA06ES7331-7KB02-0AB06ES7331-7KF02-0AB06SE6400-2FA00-6AD0140CPS11420140CPU65150140CRP93200140CPU11302FBM211ZCP2701761-L32BWA1747-ASB1747-L5421747-SN6FC5210-0DF21-2AA0A06B-6120-H04531C008-503-4-00PI-64(98)E31C008-503-4-001391B-AA45FBM2241756-IB161756-IF161756-IF81756-IM16I1756-IR6I1756-OB161756-OF8HE693THM166MFDDTB3A2DFT90L4/BMGR47-DT90L430083503E3604E3700A3805E140ACI03000140CPS11420140CPU43412A140DAI75300140DAO84210140NOE77101REN23-3WCES-A-C5E-01XFL521B140CPS11420140CPU65150140CRA93200140CRP93200IC693CMM321-JJBMXAMI0410BMXCPS2010BMXDDI3202KBMXDDO1602BMXP342020BMXXBP0800LWV000FLUKEHARTSCIENTIFIC15602562PE6A90D300/3S2266AHA-2940W/2940UWEP5XX-HPNU-23K01-PV9DA-4ZSNAP-AITM-2SNAP-AIV-IJAMSC-B2743VJAMSC-B2914JRMSP-PS601B30035H011C31129G03/1C31132G011C31219G011C31227G01/1C31224G011C31234G01/1C31238H015X00119G015X00121G0130083503E3604E3700A3805ETRICONE6ES7414-2XK05-0AB0B0598847/100CP1E-N60DT-ADMC-1414IC694ALG221IC694MDL660IC695PSD040F140CPS11420140CPU67160140NOE77101M1000E8XM610E5620MARPOSSE9034140ACI03000140ACO02000140CPS11420140CRA93100140DDI35300140DDO35300140XBP01000UT529CIC698ACC701PC2-3200R-333-12C3A06B-0127-B675#7000A16B-3200-0042140NOE77100E44549FC-9801FDSSR1221336-BDB-SP4D1336-BDB-SP5DR2D190-AA04-19(M2D068-BF)1756-CNB1786-RPA1786-RPFMJEPMC-IO220JEPMC-MB200BEY801P-FBM-051756-OW16I1746-N21746-NI81747-L5511747-L5521747-L5531756-A101756-CP31756-ENBT1756-PA751786-BNC1786-XTFSP400-246FM1723-3BA106FC5510-0BA00-0AA06FC5511-0CA00-0AA0VAP016-APCI-9111DG3-9010.121TSXDMZ28DR2S700-555140NOE77100R2D190-AA04-19(M2D068-BF)6RA7085-6DS22-0EVS9325-EP140ARI03010140CPS21400140XBE10000140XBP00600140XCA71703140XCP51000140XTS00200TSXP57203MCIMR-P7U25P516ES5430-4UA116ES5451-4UA146ES5465-4UA116ES5470-4UB116ES5928-3UA11A20B-8200-03931771-IADE6C2-CWZ1X1200P/R2MDDSCR-GL60S36DR1900-56DR2100-5DSQC5033HAC3619-1756-CNBR/E1756-ENBT/A1756-IR6I1756-L611756-PA721757-SRMPCI-44521747-PIC6ES972-0CB20-0XA0PE6A90D300/3S226***3535-1TA01-0AX01FK7081-5AZ91-1ZZ9-Z1FK7101-5AZ91-1ZZ9-ZKSD1-16KSD1-486FC5210-0DF31-2AA01203-CN1HSS03LECU5004-11193-EC2AB6FC5247-0AA17-0AA06RA2218-6DV62-06RA7081-6DV62-02094-BM02-SMPL-B4530K-MJ24AALPE1150G6F-AD2A1746-OB161746-P21746-P51C31224G01/1C31227G016DD1600-0AK06ES7153-2BA82-OXBO3HAB8101-16/10A1766-L32BWA193-EC2ABPTQPDPMV16SE3214-0DA401756-OA16M10-MFGQT-002AXECIMR-V7AM40P7IC697CPX935140CPU65150140DDO35300490NRP25400EMF2177IBSLB-2024PCS095ACS550-01-125A-4ATV31H075N4A972-0DP10GEN40-85-1P200DSAO1203BSE018293R116413-16XBTF032110140ACI04000140ARI03010140CPS11100140CRA93100140CRP931003503E3604E3700A3805E4351B9853-610MP3008150-F1250NBD1336F-MCB-SP1KDSQC6045***E39HL02521B30035H011326AS-B660E-211746-IB161756-OA16193-EC2AD193-EC2CB193-EC3BB193-EC3EE193-EC3GG140CFA04000140XTS012062M167C1746-A131746-IB161746-IB321746-NO8I1746-NT81746-OB161746-P21747-L542C1FT6064-1AH71-4AH16ES7331-7KF02-0AB06ES7414-4HM14-0AB01C31194G011C31197G011C31189G011C31192G01R-IBIL24/230DOR4/W3HAC12928-1A06B-0116-B203#0100JACP-921900CP-9200SH/SVA1336S-B015-AA-EN4-HA1-L60090-761332094-BM02-SMPL-B4530K-MJ24AAATV31HU75N4A)