Parker OEM750【Parker OEM750】

Parker OEM750
Parker OEM750
Parker OEM750
电气间短路引起的火灾大多由带电导体间的短路所造成，由于短路电流大，可用带短路保护的断路器和熔断器来防止。实际情况并非如此，因大多数的短路火灾是由接地短路故障产生的电弧或电火花所引起。前者短路电流以千安计，金属线芯产生高温以至炽热，绝缘被剧烈氧化而自燃，火灾危险甚大，但金属性短路产生的大短路电流，能使断路器瞬时动作切断电源，火灾往往得以避免。后者因短路电流受阻抗影响，电弧长时间延续，而电弧引起的局部温度可高达3000～4000℃，很容易烤燃附近可燃物质引起火灾，又由于接地故障引起的短路电流较小，不足以使一般断路器动作跳闸切断电源，所以电弧性短路引起火灾危险远大于金属性短路。

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2HRA3 GENERAL ELECTRIC Interior Panel, 16G Steel, 4.88 Lx4.88 W MP606S

3D339 HUBBELL WIRING DEVICE-KELLEMS Plate, Weatherproof CWP26H

MALLORY 7.5 UF 370 VAC C32FD37075 LOT OF 2

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2A457 SCOTCH Tape, Electric, White 27 3/4

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ALLEN BRADLEY CIRCUIT BREAKER 3 AMP 3 POLE 1492-CB3 SERIES B

ENTRELEC ERE 3S-300S TIMER TIMETRON

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GE CR123H2.05A CR-101 Manual Starter Heater H2.05A

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Allen Bradley 100-FSV136 SURGE SUPPRESSOR QTY

4X308 3M Ring Terminal, Blue, Butted, 16 to 14, PK100 MVU14-10RX

SIEMENS 3TY65660AK6 SIEMENS COIL 3TY6566-0AK6

FUJI ELECTRIC TK-0N 4NKOAN 4-6A NIB

Mac Valves 130B-111CA Valve Solenoid

Keyence FS2-60 Fiber Optic Sensor Control

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ASHCROFT 4 1/2" 202A244-67 GAUGE, 316 TUBE, MAX 300 PSI, 1/2" NPT, IN BO

GORDOS ARKANSAS IDCQ5

4FLU3 Pressure Gauge, 2 In, 200 Psi, Lower

FUJI DV32 30A MAGNETIC CONTACT SWITCH RELAY 30ma 200V

2DE95 Washer, #6, Pk 100

CLEVELAND CONTROLS AFS-950 DIFFERENTIAL AIR SWITCH

GIDDINGS & LEWIS 503 18011 03R2

WIEGMANN Louver Plate Kit, 14 Ga 6C739

FANUC A20B-0007-0370 /01A

JW-22KC CABLE connect between support tool and JW20H/30H

EATON DYNAMATIC 15-779-1 REV B

DAYTON 4HA30 DAYTON Pump, Piston, 8 Oz

USED Extreme Networks G8Xi | #51032 BlackDiamond Module