2 Grounds from different circuits wrapped together?

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Old 08-13-15, 12:01 PM
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2 Grounds from different circuits wrapped together?

In the pic are two cables, each from a different circuit and each going to a dimmer switch. I noticed that the 2 ground wires are wrapped together. Is it alright to wrap grounds from different circuits?
Thanks much in advance!
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Old 08-13-15, 12:12 PM
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It is not only ok, but mandatory that all grounds be connected together.
 
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Old 08-13-15, 06:00 PM
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And the grounds must be secured mechanically, such as with a wire nut.
 
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Old 08-13-15, 06:20 PM
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The grounds should have a pigtail and brought out and attached to each device.
 
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