Short answer: earthing clamps should be selected by conductor size, ground rod diameter, material, connection type, corrosion environment and grounding standard.
| Ground rod clamp | Connects grounding conductor to copper bonded, solid copper or galvanized ground rods. |
|---|---|
| U-bolt clamp | Used for mechanical grounding connections where rod or pipe diameter must be clamped. |
| Copper alloy clamp | Used for corrosion resistance and reliable grounding contact. |
| Bimetal or plated clamp | Used where mixed conductor materials require galvanic corrosion control. |
Earthing clamps should not be chosen only by conductor size. Rod diameter, material compatibility and corrosion risk must match.
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