Copper bonded earthing rods and copper bonded earthing rod products have to meet international standards to guarantee safety, longevity, and consistent performance in electrical grounding systems. The two most significant standards acknowledged worldwide for these products are UL 467 and IEC 62561. Main International Standards UL 467 (Underwriters Laboratories Standard 467): This... https://www.pioneerpowers.com/copper-bonded-earth-rod.php