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使用隔爆型電氣設(shè)備時要注意的事項
2015-12-14 15:52:38 來源：
使用隔爆型電氣設(shè)備時要注意的事項
1.高電壓、大功率或大電流的隔爆電器產(chǎn)品的外殼要足夠大，以保證良好的散熱功能和耐電弧能力，100w以上的隔爆型燈具還應(yīng)在外殼上鑄有散熱片，尤其注意防爆標志上溫度組別較高的電氣產(chǎn)品
2.選用隔爆型電氣設(shè)備時，一定要選用隔爆外殼壁厚的產(chǎn)品，這不僅保證其可靠的耐爆性能，重要的是保證在打開隔爆外殼安裝、維修后外殼能夠仍然保證其耐爆性能和隔爆性能，而不至于隔爆面變形失效。
3.要特別注意電纜引入裝置的隔爆性能，它是隔爆型電氣設(shè)備*薄弱的防爆部位。
三、購防爆電氣產(chǎn)品還應(yīng)充分考慮應(yīng)用場所的特殊環(huán)境條件的影響，例如:化學腐蝕、鹽霧、高溫、低溫、沙塵雨水侵襲、振動等，這些因素都會對電氣的防爆性能和電氣性能造成破壞。
To pay attention to the problem of selecting the electrical equipment of the explosion-proof electrical equipment
1 high voltage, high power or high current electrical insulation product of the shell is to be large enough to ensure good heat dissipation function and resistance to arc, 100W above the insulation type lamps should be cast in the case of heat sink, in particular, pay attention to the high temperature group on the thermal resistance of electrical products
2 when the electric equipment is used, we must choose the product which is the wall thickness of the wall, which not only ensures the reliable performance of the explosion proof, but it is important to ensure that the insulation shell is installed and maintained.
3 special attention should be paid to the isolation performance of the cable, which is the weakest part of the explosion proof electrical equipment.
Three, the purchase of explosion-proof electrical products should also take full account of the special environmental conditions of the application, such as: chemical corrosion, salt spray, high temperature, low temperature, dust, rain, vibration, etc., these factors will be electrical explosion resistance and electrical properties.
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