Final answer:
Grounding conductors from lightning arresters should not be covered with wood moulding due to safety hazards and non-compliance with the National Electrical Code. The conductors need to be properly protected and accessible while maintaining a safe distance from combustible materials.
Step-by-step explanation:
The grounding conductors from lightning arresters should not be covered with materials such as wood moulding. The National Electrical Code (NEC) generally requires grounding conductors to be protected from physical damage, but they also need to be accessible and have proper spacing from combustible materials to prevent fire risks.
Grounding conductors are usually made from materials that conduct electricity well, such as copper or aluminum, and adding a combustible material like wood could pose a safety hazard. It is essential to follow local building codes and standards that are based on the NEC. These standards are in place to ensure the safe and effective operation of electrical systems, including those related to lightning protection.
Therefore, consult relevant local codes or a licensed electrician for the best practice regarding the coverage and protection of grounding conductors in your specific situation.