Individual wires，used in systems greater than 50 volts,（）.
- Ashould be supported at 24 inch intervals with plastic tie wraps
- Bshould never be located in a tank
- Cmust be installed in conduit
- DAll of the above
问题
Individual wires，used in systems great
参考解析：
分类：液体散货运及有关规则题库
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