描述
智能建筑自動化電子設(shè)備的信號接地、屏蔽接地、功率接地、邏輯接地等若是同時接在一個電極,則所對應(yīng)的電極接地電阻不應(yīng)該大于4歐,但是,如果電子設(shè)備接地、防雷接地與工頻交流接地同處于一個電極時,其所對應(yīng)的電極接地電阻不應(yīng)該大于1歐,因此,需要根據(jù)不同情況,設(shè)置不同的接地電阻,確保不同條件下,智能建筑體系能夠穩(wěn)定運行。
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主營:世界知名品牌的PLC、DCS系統(tǒng)備件模塊
①Allen-Bradley(美國AB)系列產(chǎn)品》
②Schneider(施耐德電氣)系列產(chǎn)品》
③General electric(通用電氣)系列產(chǎn)品》
④Westinghouse(美國西屋)系列產(chǎn)品》
⑤SIEMENS(西門子系列產(chǎn)品)》
⑥銷售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。
⑦estinghouse(西屋):OVATION系統(tǒng)、WDPF系統(tǒng)、MAX1000系統(tǒng)備件。
⑧Invensys Foxboro(??怂共_):I/A Series系統(tǒng),F(xiàn)BM(現(xiàn)場輸入/輸出模塊)
順序控制、梯形邏輯控制、事故追憶處理、數(shù)模轉(zhuǎn)換、輸入/輸出信號處理、數(shù)
據(jù)通信及處理等。Invensys Triconex:冗余容錯控制系統(tǒng)、基于三重模件冗余(TMR)
結(jié)構(gòu)的zui現(xiàn)代化的容錯控制器。
⑨Siemens(西門子):Siemens MOORE,Siemens Simatic C1,Siemens數(shù)控系統(tǒng)等。
⑩Bosch Rexroth(博世力士樂):Indramat,I/O模塊,PLC控制器,驅(qū)動模塊等。
◆Motorola(摩托羅拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
ALFA LAVAL Decanter Core Controller 6121.1227-01
Nortel Multiservice Switch 15000 SHELF New Spare
Cisco Unified Communications Manager CM6.1U4-K9-UPG=
SIMRAD MC50 Marine Computer 26056010
New NIDEC SANKYO SC3150 Robot Controller 200/230vAC
CG171A-T003-05 Reflector Film UX188 etching mould USED
Lot 80 CY7C1414SV18-25?0BZC CY7C1414 Chips$29/each
Honeywell 24 Beam Light curtain Control FF-LS242806842
Agilent G3431-60531 FID EPC Manifold New
PELCO Esprit ES31CBW24-2W-X IOP 24X High Res PAL
VUTEk 3360 Controller Board Assy AA90206 Rev B NEW
Emerson Force PowerCore CPCI-6750/128S-?400-L
Motorola STARLINE SG2000 Optical Node 415239-333-00 NEW
Alcatel 3AL97690AA LC-ESC board NEW
lot 520 iKANOS Fusiv IKF68331-A1-PB1?-C chips$4/each
lot of 2500 LINEAR LTC1430CS#TR Voltage Regulator chips
Cooper Cleco STMH for TMEM TME Controller Refurbished
MacGREGOR C000071 cabin display Crane Computer CCP XS
Thrane&Thrane Sailor TT-3606E Message Terminal New
Agilent G1888-60704 G1888A Enhanced PM Kit NEW
NORTEL NTHW18BB 6mPKTservSP function processor
PACKETEER PacketSeeker 9500 PS9500-L000M-20?00 NEW
PACKETEER PacketSeeker 9500 PS9500-L000M-20?00-SX NEW
BLUECOAT SG8000-1 PROXY SERVER WEB ACCELERATOR NEW
SIEMENS SIVOLT-A-Drehst?romsteller 40A 6SG2412-3CA00-Z
Endress+Hauser Turbimax CUS31-W4E New
Nortel NTN063FM S18K DDM 900 Filter 190-CY127-F1V5
Repaired Marconi LB16BG Board PLT40 UNPORT TRANS 2.5GB
SAM ELECTRONICS HS06-TCU NG3028G201 Board NEW
SAM ELECTRONICS HS10 Pulse Modulator NG3028G206 25KW
NSK HR32060XJ Taper Bearings NEW
Alcatel SWL-B LHR R2.0 FEE License Certificate
ABB Motor M3AA200MLA 4/8 3GAA208207-BDC 220KG NEWinbox
Cooper Cleco 67ES135D4 Netsetter Inline Fixed Spindle
ECS CNC BASIC Controller 080H969 Spare part USED
New Alcatel MD128W1 3DB02136AA
Shimadzu GC-14A GAS CHROMATOGRAPH USED SPL FID install
New OKUMA Drive Board UCMB2+F A911-2821 E4809-770-144-A
ABB SPAD346C3 SPAD 346 C3 DIFFERENTIAL RELAY PROTECTION
Hypertherm HT2000 041677 129160 Chopper used Spare
Credence LT1101 Voltage Supply Board 671-4014-04 Spare
TE-W Thermal Infrared Camera 160*120 core protype
Lot of 2973pcs NEC UPD78F0102HMC-5?A4 F0102H 8-bit$1/pc
MAN B&W PMI SYSTEM Pressure Analyzer for 6S50MC-C
Welch Allyn 88042A Colposcope Factory Refurbished Spare
Refurbished ALSTOM STF-DL ANTENNA Ref:23509 Rev.E
Putzmeister Concrete Axial Piston Pump 067370003 New
ICHINOSE S-7000 SQC-6 Positioner Control Panel NEW
PELCO SD4CBW-PG-E1-X Spectra IV Camera
BLUECOAT 8000-1 PROXY SERVER WEB ACCELERATOR 080-03103
Honeywell Pressure Instrument Druck DPI 701 installed
New Motorola SGLF4136FA JCDMA Broadband XCVR 1X CARD
MKS Baratron 220DD Differential Capacitance Manometer
Alcatel-Lucent O-24120G-A 3FE51185AB 7342 ISAM FTTU MDU
Rivertrace Engineering SMART ODME SVC Exchange Computer
Alcatel ISA-ES4 L2 Ethernet Board 3AL81879AA ES4-8FE
GUTOR 0C0075 and 0C0950 New
Tektronix gigaBERT 1400 GENERATOR GB1400 Desktop Refurb
RICOH Z-folding Unit ZF-4000 for MP6000 MP7000 MP8000
RICOH SR842 finisher stapler for MP6000 MP7000 MP8000
B&R APC620 System Unit 5PC600.SX02-01 USED SPARE
Honeywell 51196694-300/U1 Keyboard DCS spare
Simrad GC80/85 Compact Control Unit I-type 27101690 NEW
Honeywell 51405043-175 Digital Output 24v module NEW
Agilent G1978-60027 Charging Electrode Mount Assy NEW
VersaCAT TEST SYSTEM 3M Austin Metrology LAB USED
Brocade BR-TWS3-R250W Wide Area File Services Appliance
ASE2000-COM Communication Test Set by Applied Systems
Pressure Sensor 3876134-1 for AIRBUS A320 NEW
New IRONPORT C300 Email Security Sever Hardware
Agilent G1315-60015 Micro High-Pressure Flow Cell NEW
Thrane&Thrane Sailor RT5022 VHF DSC NEW
SEL-387 Current Differential&Overcurrent Relay 110VDC
Honeywell 51304672-150 Analog Output Spare forTDC 3000
STUDER Distribution Box A943.045500 NEW
Alcatel 3BA23197BA CPU6 Board 40G 128M New