When using a lightning arrestor， connect which type of ground wire to a good earth ground？（）A、#6 solid copperB、#12 solid copperC、#20 solid copperD、#22 solid copper
When using a lightning arrestor， connect which type of ground wire to a good earth ground？（）
- A、#6 solid copper
- B、#12 solid copper
- C、#20 solid copper
- D、#22 solid copper
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