描述
固定交流單芯電纜的夾具有什么要求?為什么?
夾具應(yīng)無(wú)鐵件構(gòu)成閉合磁路,這是因?yàn)楫?dāng)電纜線(xiàn)芯通過(guò)電流時(shí),在其周?chē)a(chǎn)生磁力線(xiàn),磁力線(xiàn)與通過(guò)線(xiàn)芯的電流大小成正比,若使用鐵件等導(dǎo)磁材料,根據(jù)電磁感應(yīng)可知,將在鐵件中產(chǎn)生渦流使電纜發(fā)熱,甚至燒壞電纜。所以不可使用鐵件作單芯交流電纜的固定夾具。
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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(mén)子系列產(chǎn)品)》
⑥銷(xiāo)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(mén)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。
LEYBOLD TURBOVAC 361C TURBO PUMP — PARTS UNIT
SUMITOMO AF=500 TRANSISTOR INVERTER & BALDOR MOTOR
HP 3324A SYNTHESIZED FUNCTION/SWEEP GENERATOR 21MHZ
OPTEM INTERNATIONAL HF VIDEO MICROSCOPE
MINOLTA DLP PROJECTION ZOOM LENS 1.5-3.0:1
MINOLTA DLP PROJECTION ZOOM LENS 1.5-3.0:1
MINOLTA DLP PROJECTION ZOOM LENS XGA 4.0-7.0:1
MINOLTA DLP PROJECTION ZOOM LENS XGA 4.0-7.0:1
BRUCE TECHNOLOGIES MODEL 7351C CONTROL UNIT
OLYMPUS SZ3060 MICROSCOPE HEAD. EYE:GSWH20X/12.?5
SMC CYP15-250 CLEAN ROOM RODLESS CYLINDER ACCUATOR..NEW
MINOLTA DLP PROJECTION ZOOM LENS XGA 2.5-4.0:1
HP MODEL 3330B FREQUENCY SYNTHESIZER
1000 CORNING CAPACITORS #CRC115X7R – .01UF 50V
BIDDLE MODEL 510036-7 DETEX VOLTAGE DETECTOR 2.4-36 KV
PERIPHONICS VPLC-2000 BOARD FOR USE IN VPS/IS 7000
PFEIFFER TPU 050 TURBO MOLECULAR PUMP — PARTS/REPAIR
PLATO MODEL SP-500T SOLDER POT
HP MODEL 778D dual DIRECTIONAL COUPLER 0.1-2.0 GHZ
HP MODEL 11692D DUAL DIRECTIONAL COUPLER 2 – 18 GHZ
SCIENTIFIC ATLANTA 1780 PHASE AMPLITUDE RECEIVER ,CONT
NIKON ZOOM NIKKOR 80-200MM 1:4
PULNIX TM-7CN CAMERA & TAMRON LENS &NERLITE ILLUMINATOR
MKS 252a-3-VPO EXHAUST VALVE CONTROLLER
MIRANDA SDM-872P SD/HD SERIAL DIGITAL TO DVI CONVERTER
TEKTRONIX MODEL DAC 422 COMPONENT D/A CONVERTER
RACAL INST. 1260-20 20 CHANNEL DPST 250V 8 A SWITCH
TEKTRONIX MODEL SD-14 3GHZ 2 CHANNEL SAMPLING HEAD
NEWPORT CORP. SERVO LOCK MODEL 2010
AMREL PD20-5DA PROGRAMMABLE LINEAR DC POWER SUPPLY 20V
VERIFLO HEATED MANIFOLD VALVE 945Y2NC/NCFSFFF?AEV
ILC DDC HSR103 SYNCHRO/RESOLVE?R ANGLE INDICATOR
ADVANCE HIVOLT POWER CUPPLY MODEL 1140 90614
BAUSCH & LOMB STEREOZOOM 4 HEAD…0.7X-3X.?..B&L10XWF
DATUM PROGRAMMABLE TIME SYSTEM MODEL 9700/9710
KURT LESKER IG2200 DISPLAY UNIT
ADTECH FRAME RELAY DSS INTERFACE AX/4000
ADTECH OC-3c/STM-1 MULTIMODE INTERFACE AX/4000
REICHART-AUSTRI?A PLAN FLUOR 50X/0.80 EP INF/0 OBJECTIVE
PMSI VACULAZ -3-(3) COOLED 4 CH
COLE PARMER MODEL 37000-90 TRI-SENSE KIT
FLINTAB MODEL SB2 LOAD CELL .. CAPACITY 75K
LEYBOLD INFICON QUADREX – 200 SCU
ADVANCED ENERGY MAGNETRON DRIVE MDX-5K – PARTS/REPAIR
HP 75000 SERIES C VXI E1416A POWER METER
HP MODEL 54300A PROBE MULTIPLEXER W.16 HP 54002A
SORENSON MODEL SRL 10-50 POWER SUPPLY
AEP MODEL 8011
HP 8922M OPTION 10 GSM/DCS/PCS MS TEST SET IF
BECKMAN SYSTEM DC POWER SUPPLY MODEL PPS100
APPLIED MICROWAVE LABS AML MODEL 1101 H PLUG IN MODULE
APPLIED MICROWAVE LABS AML MODEL 1109 PLUG IN MODULE
APPLIED MICROWAVE LABS AML MODEL 1704H PLUG IN MODULE
TRANSISTOR DEVICES DYNALOAD MODEL DLF 50-85-500
OSRAM 500W HBO500W/B MERCURY SHORT ARC PHOTO OPTIC LAMP
TOKYO ELECTRON/PNEUTR?ONICS MOD ASSY,SBX TTL-0/I CONTROL
GRANVILLE PHILLIPS 274042 HOT CATHODE ION GAUGE – NEW!
SNELL & WILCOX SUPER VISOR Video Interface/Conve?rter
HP MODEL 8496A ATTENUATOR 110Db DC to 4 Ghz opt 001
HP MODEL 438A POWER METER
FLUKE MODEL 8506A THERMAL RMS DIGITAL MULTIMETER
NIKON SMZ-1 STEREO MICROSCOPE HEAD…EYE:10X/?21
HP MODEL 8494H ATTENUATOR 11 dB DC TO 18GHZ
ASAHI TAKUMAR SUPER-MULTI-COA?TED 6X7 1:4/200 8225930
TEKTRONIX TAS 465 DUAL CHANNEL OSCILLOSCOPE 100 MHZ
HP MODEL 6253A DUAL DC POWER SUPPLY 0-20V 0-3A
OLYMPUS MICROSCOPE OBJECTIVE MS PLAN 20 0.40 f =180
RODENSTOCK RODAGON 80mm f 1:4,0 TYPE 935.08 RIGHT ANGLE