描述
盡管在標(biāo)準(zhǔn)中沒有專門提到接地端口的指標(biāo),實(shí)際上信息技術(shù)設(shè)備地端口是非常重要的。在雷電發(fā)生時(shí)接地端口有可能受到地電位反擊、地電位升高影響,或者由于接地不良、接地不當(dāng)使地阻過(guò)大達(dá)不到參考電位要求使設(shè)備損壞。接地端口不僅對(duì)接地電阻/接地線極(長(zhǎng)度、直徑、材料)、接地方式、地網(wǎng)的設(shè)置等有要求,而且還與設(shè)備的電特性、工作頻段、工作環(huán)境等有直接的關(guān)系。同時(shí)從接地端還有可能反擊到直流電源端口損壞直流工作電壓的設(shè)備。綜上所述,信息技術(shù)設(shè)備的防雷可以考慮從四個(gè)關(guān)鍵的端口入手。
產(chǎn)品廣泛應(yīng)用于:電力、石油、礦井提升、港口、供熱、燃?xì)?、供水、污水處理、冶金、造紙、紡織、化工、水利等現(xiàn)代化工業(yè)領(lǐng)域!
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主營(yíng):世界知名品牌的PLC、DCS系統(tǒng)備件模塊
①Allen-Bradley(美國(guó)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(guó)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(福克斯波羅):I/A Series系統(tǒng),F(xiàn)BM(現(xiàn)場(chǎng)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(hào)處理、數(shù)
據(jù)通信及處理等。Invensys Triconex:冗余容錯(cuò)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(cuò)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(lè)):Indramat,I/O模塊,PLC控制器,驅(qū)動(dòng)模塊等。
◆Motorola(摩托羅拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
New Aera FC-D980C Mass Flow Controller 500 SCCM SIH4
Unit Instruments UFC-8100 Mass Flow Controller N2
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Donaldson Part #P510172 Compresses Ambiant Air Filter
Omron AC Servo Drive R88D-UA12V 200v
Western Atlas INT Assy D 155562
Western Atlas INT Assy D 155567
Western Atlas INT Assy D 155568
Verteq Process System Division SW800-C1-E2
New Varian 965195-000 PCB Output For 988 Controller
Werlatone Directional coupler C3059 500-1000 MHZ
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ASML/SVG Art Remote Control Box Assy ARCB
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Semiconductor Systems 09-04352,PB 146298,09-04393?-B Bo
AMAT Part Number 0100-90870 4 Phase Stepper Controller
Leybold-Heraeus NIZ 2 Power Supply
Varian MAT 25649/039 Power Supply
Tokyo Electron CVD/Etch Reactor Interface 2 Analogic
Tokyo Electron WZ81-000694-1 PCM Valve Drive
Tokyo Electron Transport Gas Panel Interface Analogic
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Tokyo Electron CVD/Etch Reactor Interface 1 Analogic
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ASML 4022.431.2340 Spacer Block Tilting Lens
AMAT Applied Materials Motorola MVME211 0100-11030
ASML/SVG 4022.471.6177 ProDrive Power Supply PADC 65/13
Ultra-Clean Cleanroom 699-041 Size Medium Lot 41
New In Package ATMI SR4BDAFB-050315 NowPak SmartProbe
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MKS HPS Products Series 999 Quattro Multi Sensor Trans
New VAT PM-5 FABR No. 641PM-36PM
Precision Scientific incubator 31532
MKS Mass Flow Controller 1559A-100V-RV
Tokyo Electron Limited 84-1038-001
APTech/KyTek Cylinder Scale KT3010 with Millipore LR300
New in Package ATMI SR2BDAFB-050608 NowPak Dispenser
New In Package ATMI SR4BDAFB-050421 NowPak SmartProbe
New In Package ATMI SR4BDAFB-050422 NowPak SmartProbe
New In Package ATMI SR4BDAFB-050423 NowPak SmartProbe
ASML 4022.502.26001 Ellipsoidal Mirror SVG
BOC Edwards D37215000 Flash Module Lot Of 3 Wired
Tokyo Electron Shower Head 10 ? inches TEL
Ryan Herco 2422.092 PVC Hex bolt ?-13 x 1” 330 pieces
Kobold Y-DF-17559/60 Paddle Wheel Flow Sensor Frequency