四川中光防雷科技股份有限公司
Products
ZGD-I-3 Low Resistance Grounding Module

 
General                                                                                 
The ZGD-I-3 Low Resistance Grounding Module is a kind of grounding body based on nonmetallic materials, being composed of conductive and stable nonmetallic minerals and electrolytic materials, which can be used as the lightning protection grounding of buildings (structures), static protective grounding, AC working earthing, DC working earthing, protective earthing and grounding bodies for other purposes.  

Standards Complied                                                                              
GB/T21698-2008 Technical Specifications of Composite Grounding Device
Q/75875187-9·6—2011 Grounding Body

Technical Data                                                                             
Model ZGD-I-3
Room temperature resistivity ≤1.0Ω•m
Power-frequency grounding resistancea 
Power-frequency grounding resistance (equivalent expression) Rj ≈0.11ρ
Weight 55kg
a For the soil resistivity ρ, the typical value in Chengdu, i.e., 40Ω·m, is taken.
 
Configuration
Overall dimensions: Ф260mm×1000mm (excluding the rod)
1 - Rod; 2 - Low Resistance Materials; 3 - Bolt; 4 - Nut; 5 - Flat Gasket; 6 - Spring Washer