1. During the stage when the pile foundation welding is completed and the concrete has not been poured, the specific contents of the inspection include:
   Welding quality
   Types of grounding bodies;
   Quantity and model of resistivity reducer used.
   Depth and type of burial for the auxiliary grounding body.
   Pile main reinforcement diameter
   Basic body types and burial depths, and the grounding resistance value must be measured.

   
   

2. During the welding work on the ground beam and prior to the concrete pouring, the specific inspection contents include:
   Types of grounding bodies
   Quality of the welds between the ground beam and the bearing platform
   Specs, quantities, positions, and spacing of downlines.
   Types of underlines, welding quality with the beam, painted marking or not.
   Did the electronic information and power distribution system comply with the requirements for grounding leads, and were the grounding resistance values measured?
   

Building Lightning Protection System Inspection

1. Lightning Rod
Test Parameters: Protection Range, Electrical Connection (Transition Resistance Value), Splice Length, Cross-sectional Rust Area, Spacing and Height of Fixed Bracket, Vertical Tension of Support Components, Grid Size, Lightning Rod Height, Material Specification Dimensions, Vertical Distance of Equipotential Connection Ring, Ground Resistance

2. Drop down lines
Inspection Parameters: Fixed Bracket Spacing, Lap Length, Cross-Section Rust Area, Vertical Tension of Fixed Bracket, Average Spacing, Material Specification Dimensions, Transition Resistance from Down Lead to Air Terminal, Disconnect Card Installation Height, Transition Resistance from Down Lead to Grounding Device, Grounding Resistance

3. Grounding Device
Test Parameters: Transition Resistance, Power Frequency Ground Resistance Value, Impulse Ground Resistance Value, Soil Resistivity, Large Ground Grid Ground Resistance, Material Dimensions of Conducting Wires, Soil Resistivity

4. equipotential bonding
Test Parameters: Transition Resistance Value, Material Specification Dimensions

5. Surge Protection Devices (SPDs)
Test Parameters: Connector Conductor Cross-sectional Area, Lead Wire Lengths at Both Ends, Transition Resistance, Sensitivity Voltage, Leakage Current, Insulation Resistance

6. Lightning Surge Electromagnetic Pulse Shielding
Test Parameters: Transition Resistance Value, Material Specification Dimensions

7. Electrostatic Protection
Test Parameters: Transition Resistance, Ground Resistance, Static Potential, Surface Resistance

Enshi Annual Lightning Protection Inspection Institution Coverage: Laifeng City, Enshi City, Lichuan City, Jianshi City, Xianfeng City, Badong City, Xuanen City, Hefeng City.