Q. When connecting a surge protective device (SPD) grounding conductor of a Type 1 SPD at the service, which of the following connections is permitted? Note: the SPD may be a surge arrester or TVSS.
- Equipment grounding terminal in the service equipment.
- Grounding electrode for the service.
- Grounding electrode conductor.
- Grounded service conductor
- All of the above are permitted.
As per 285.23(B) of the 2008 NEC, any of the above mentioned methods are considered an acceptable installation.
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