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FOXBORO P0972PP-NCNI
FOXBORO P0972PP-NCNI
FOXBORO P0972PP-NCNI
電控柜下方要有進(jìn)氣孔，上方要有排氣孔，進(jìn)排氣孔要裝上金屬絲網(wǎng)以避免灰塵和異物進(jìn)入柜內(nèi)，防止液體滴入。金屬絲網(wǎng)的目孔疏密決定除塵的效果，其目孔要較細(xì)，以確保灰塵和較大的水珠不能吸入柜內(nèi)。電控柜上方排氣孔要加裝排氣扇，并確保足夠的排氣氣壓，使空氣對流暢通。
散熱設(shè)計PLC使用的環(huán)境溫度容許值為0～45℃，一般的電氣室內(nèi)使用沒問題。PLC屬小發(fā)熱量裝置，單獨應(yīng)用時，其自然散熱不成問題。但工業(yè)現(xiàn)場使用的PLC控制系統(tǒng)大多還有大容量接觸器、變壓器、變頻器或其它大功率變流裝置，這些均屬大發(fā)熱量裝置，如不考慮整個控制系統(tǒng)的散熱，勢必造成PLC及其它對溫度敏感變流裝置的環(huán)境溫度超過容許值。
不能把PLC的環(huán)境溫度限制在其容許值以下時，要采用下述方法降低環(huán)境溫度，使它在容許溫度內(nèi)。由工程經(jīng)驗公式可知，要降低電控柜內(nèi)的溫升，則需要加大配電柜的尺寸，或者增加配電柜內(nèi)的換氣風(fēng)量。加大配電柜尺寸的方法不經(jīng)濟(jì)，故一般情況下采用增加冷卻風(fēng)扇換氣量的方法。在電控柜內(nèi)安裝冷卻風(fēng)扇時，應(yīng)讓大發(fā)熱量器件盡量靠近冷空氣進(jìn)風(fēng)口，提高散熱效率，而且盡量避免將PLC安裝在熱源的上方
因PLC控制系統(tǒng)大發(fā)熱器件導(dǎo)致設(shè)置場所的溫度異常升高時，可采用裝設(shè)通風(fēng)換氣設(shè)備，把電控柜的熱量排到室外，或者設(shè)置冷房裝置強(qiáng)制降低設(shè)置場所的環(huán)境溫度。
FOXBORO P0972PP-NCNI
CKD JSC3-G1-TA-100B
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CKD JSC3-G1-TA-100B
Foundry Knock Out Bench Table with Rotating Platform, Shoot & Rollers
Ductile Iron GGG pipe pipeline clamp coupling 280mm-306mm
ITOH Pulley Power Moeller Motorised Drum Powered Conveyor Roller suit 1m belt
3 Phase Pedestal grinder Ex Tafe
Xylon THS425EGKV
8056001
3 phase switched capacitance capacitor box electrical teaching lab ex tafe
Dual Cylinder reciprocating vacuum pump
Techquipment B354370
SMC MGGLB40-200-B77L
McColl Electric works 2252/019 Gear Pump & Heated Oil Tank
MFB server rack on wheels + jack bolts Adelaide
3 phase ABB induction motor .55kW 0.75hp 1420rpm 4 pole 8.7:1 163rpm output
Hydraulic Cylinder used as pressure intensifier large 90mm diameter rod
Pneumatic 0822341180
3 phase induction motor 0.4Kw 10:1 ratio gearbox 143rpm output GTR Nissei corp
3 phase induction motor 3kW 1440rpm 4 pole Teco
Colortronic Hopper plastics injection moulding
Solartron Pulse Geneator Model OPS 100C serial 50573
Skatron titertek type MCH1 Laboratory Cell Harvester
inch DN 250 CI 10 CF8M
Fivalco DN 100 PN16Cl
Dorman Heavy duty spot weld welding gun water cooled jaws electrodes
Dorman Type C Heavy duty spot welding weld gun water cooled jaws electrodes
QTY of 150 M20 x 70mm threaded rod joiners
Quantity of 10 high bay fittings 3 types
body for Lightnin tank agitator mixer XJC350 unused spare part
Mercer model 500 comparator height micrometer stand gauge block
Hub for very large tank mixer agitator suit 4" shaft
CKD JSC3-G1-CB-63B
Sala 15.34 to 1 gearbox reducer drive input OD 28mm Output ID 55mm
Mobile tipping troley SUIT 205 L Drum
East west Engineering crane lift able oxy bottle trolley
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