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Standard getaran kipas angin

2016-11-23View Original

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JBT8689-98: Getaran pada 4.5 mm/s adalah memuaskan.
Reply #22016-11-24
1. Standard terkini JB/T 8689 ialah versi tahun 2014.
2. Versi 98 juga tidak menetapkan nilai 4.5 mm/s; nilai had bagi kelajuan getaran pada sokongan yang kaku ialah 4.6 mm/s, manakala untuk sokongan yang fleksibel pula ialah 7.1 mm/s.
3. Ia merupakan getaran, bukan gempa bumi.
4. Standard ini hanya digunakan untuk kipas pengudaraan sahaja.

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