Supply of resistance reducing agent | Cangzhou Hengtai long-term anti-corrosion physical resistance reducing agent manufacturer has preferential prices
&1. According to the geometric dimensions of the designed grounding body length and diameter, =/& In the formula: : The amount of resistance reducing agent ( Ton)
B: Grounding body length
Grounding body equivalent diameter
: Weight specific gravity of resistance reducing agent. (ton/, that is, the volume of the grounding body that can be irrigated by a ton of rent-reducing agent
2. Calculation of ground resistance value
Based on the on-site measured soil resistivity, reference geology, hydrology, meteorological data, combined with long-term With many years of practical experience in the application of physical resistance reducing agents, the following formulas are proposed for your design reference.
Vertical grounding body:
Generally & shallow wells use copper-clad steel grounding rods or grounding modules with diameters larger than the above for deep wells. (Wall thickness &) ion grounding electrode. The amount of resistance reducing agent is calculated according to the following formula:
Where:
The grounding resistance of a single vertical grounding body
One by one, the actual measured values on site are used for the seasons. Soil resistivity after coefficient correction
- Length of a single grounding body measured from below the ground
- Equivalent vertical grounding body diameter after using resistance reducing agent, generally selected within .&.< br/> One-to-one rent reduction agent coefficient is selected from the following range:
&r&&=
&&r&&=
&&r&&=
&r&&=
, horizontal grounding body:
Generally, copper-clad steel flat steel or copper-clad steel round wire with a diameter of & is used as the metal electrode, and the burial depth is within . Body grounding resistance
——Corrected earth wall resistivity
——Total length of horizontal grounding body
——Equivalent horizontal grounding body diameter after using resistance reducing agent, generally within.&. Selection
One-to-one resistance reduction coefficient is selected from the following range
&&r&&=r&&=
&&r&&=r&&=
Horizontal grounding shape correction coefficient
, closed fishing Voltage level grounding network (the facility is located in the network), when the network area &, then?
Where R#: Grounding network grounding resistance
: Corrected soil resistivity (&,)
: Ground network area)
: Resistance reduction coefficient.
In order to facilitate user ordering, based on our past experience and relevant scientific research department tests, the following tables are recommended to users for reference:
3. Construction method of resistance reducing agent
& Horizontal grounding body
Use resistance reducing agent at the construction site: water =:. Add the proportion of water and mix thoroughly, stir evenly into a thin paste, and pour it around the grounding body.
Excavate the required length of trench and backfill it with resistance reducing agent.
, according to the grounding resistance reducing agent: water =:. Mix the mixture evenly and lay a sufficient thickness of resistance reducing agent in the deep grounding pit.
, Insert the grounding body into the grounding pit.
. Wrap the grounding body tightly with the mixed resistance reducing agent.
After covering with soil, it can be fully covered.
Vertical ground
． Excavate the trench to the required height.
． According to the grounding resistance reducing agent: water =:. Mix the mixture evenly and lay a sufficient thickness of resistance reducing agent in the deep grounding pit.
． Insert the grounding body into the grounding pit.
． Wrap the grounding body tightly with the mixed resistance reducing agent.
． After covering with soil, it can be thoroughly covered.
4. Packaging, storage and transportation
The series of long-lasting physical resistance reducing agents are packed in moisture-proof plastic bucket woven bags: /kg/bag.
． The resistance reducing agent should be stored in a warehouse or under a shelter, and moisture is strictly prohibited.
Supply of resistance reducing agent | Cangzhou Hengtai long-lasting anti-corrosion physical resistance reducing agent manufacturer has preferential prices
Supply of resistance reducing agent | Cangzhou Hengtai long-lasting anti-corrosion physical resistance reducing agent manufacturer has preferential prices