| Parameter Item | Description |
| Application | Preferred equipment for operating procedures of underground cables, box-type substations, and ring main units (RMU). |
| Function | Provides a grounding lead-out for cable maintenance and a high-voltage lead-out for cable testing. |
| Configuration & Compatibility | Can be used independently or in combination with single or double bushings of box-type transformers and ring main switchgear to form a visible cable grounding point. |
| Insulation Strength | The outer insulation strength of the elbow grounding plug's lead-out wire is 600V. |
| Material & Construction | The outer layer is cast from high-dielectric-strength rubber, making it a fully insulated product. |
| Testing Requirement | During testing, the lead-out wire must be suspended in the air (overhead). |