First time I’ve seen a split bolt connector in a sub panel. Any problem with that?
There’s nothing wrong with split-bolt connectors..
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If that spliced conductor is the GEC it needs to be spliced by an irreversible means. A split bolt does not satisfy that requirement.
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You first need to first identify the conductor because as Jim stated a split-bolt is not permitted for splicing a GEC. The conductor is the photo appears to be an EGC which is allowed to be spliced with a split-bolt.
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The distinction between a GEC or an EGC is not your concern. Not a safety concern, just move on.
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Michael said that it is in a sub-panel. A GEC in a sub-panel would be very unusual, unless it is in a detached structure.
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Morning George. Hope to find you well.
My questions would be strand copper matching conductors AWG, as well as protecting snags or injury from exposed strands. Shouldn’t the exposed strands and split-bolt connector be insulated to protect the cabinet from accidental mechanical enclosure bonding?
From what I understand. Using split-bolt connectors with stranded copper requires strict adherence to AWG rules as well a torque rating.
Thank you in advance.
As with any wire connector following the listed wire size range, the number of conductors, and torque value is a requirement of using them. Split-bolts would need to follow the same rules as any other wire connector. Since this is an EGC the connection is not required to be insulated nor are the conductors.
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The mechanical enclosure as you call it is bonded to ground already. That is required for every panel or metal junction box.
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Thank you, Bob.
My misrepresented the ground bar for a neutral buss. Ops.
As for securely dedicated, if/when the exposed GEC conductor strands contact the enclosure through mechanical damage, which it can, it would not be terminated to a dedicated, isolated ground bar.