力士樂IKG0012-25德國
從而形成一個危險區間。如果雷電擊穿二次密封的材料，則很有可能點燃一次密封與二次密封之間的油氣混合物，而發生雷擊起火事故。另外，機械結構整個結構為金屬制品，與氣柜壁又未形成絕緣保護，在油氣柜運行時機械支撐的環形密封圈與不規則的氣柜壁時而存在間隙，時而處于閉合狀態，當其存在間隙時，極易在雷雨放電時形成放電火花而引發雷擊火災事故。因此對于機械密封來說，其本身存在的缺陷極易導致油氣混合物和電火花的形成。

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Allen Bradley 1761-L16BBB/E Micrologix 1000
ALLEN-BRADLEY PHOTOSWITCH 872C-D3NP12-D4 RISCN1 872CD3NP12D4
Allen Bradley 1785-L20E (1785-L20E) CPU Module Ethernet Series E Rev J
ALLEN-BRADLEY 1769-OB16P SER B REV 2 F/W REV 3.1
ALLEN BRADLEY 1785-L60L SER B PLC 5/60 PROCESSOR NEW!!
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Allen Bradley 1746-P2 Chassis Power Supply PLC Module FREE
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PFCL201CE-20.0 3BSE027062R20 20.0 (4500)
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