2. The connection between the modules uses 40x4 galvanized flat steel, the contact connection must be welded, the welding length of the welding spot is twice the width of the connection line; the welding slag is removed at the welding place, coated with anti-corrosion paint or asphalt; galvanized flat The buried depth of steel is more than 0.5m.
3. When water is backfilled, sprinkle water in appropriate amounts, layered and tamped (modules must be in close contact with the soil in the up, down, left, and right directions, and avoid the incorporation of non-conductive objects such as stones and sticks around the module) until the module is fully hygroscopic (72 hours). Grounding resistance (the compaction effect of soil backfill has a great influence on the measurement results, which must be taken care of).
4. Installation should comply with relevant national and industry regulations.
Hengtai cylindrical graphite lightning protection grounding module can be buried vertically or buried horizontally, buried depth should not be less than 0.6 meters, generally 0.8-1.0 meters.
2, When several modules are embedded in parallel, the module spacing should not be less than 4.0 meters. If the conditions are not allowed, it can be appropriately reduced. At the same time, the value of the module utilization factor should be reduced when calculating the module usage.
3. The poles of low-resistance non-metallic graphite lightning protection grounding modules must be soldered when they are connected in parallel with each other or with ground. Requires welding with the same metal material to ensure the reliability of the connection. The welding length should not be less than 100mm, and it is not allowed to weld or miss welding.
4, welding slag should be removed in the welding area, coated with a layer of asphalt or anti-corrosion paint to prevent pole core corrosion.
5. The backfilling of pits and pits should adopt fine-grained soil as the filling material, and construction waste such as broken bricks must not be used for backfilling. When filling back, it should be stratified. After filling 30 cm of material, add proper amount of water and compact it. Refill, add water and tamping until flush with the surface.夯 Real-time care should be taken to ensure that even if the module is backfilled with soil, the backfill soil is in close contact with the formation without damaging the module itself. After the backfill is complete, it will be moistened again.
6. After 72 hours of moisture absorption, measure the ground frequency resistance of the power line with a ground resistance meter. If you do not achieve the desired goal, you should analyze the reasons and take corrective measures.
The application scope of Quzhou Hengtai cylindrical grounding module products is very extensive. At present, it is mainly used in electric power, chemical industry, communication, transportation and other fields. It is used for grounding such as lightning protection grounding, anti-static grounding, safety grounding and work grounding. The use of cylindrical grounding modules allows many industries to ensure normal operation and development of the work during thunderstorms, so that the operation of the power network is no longer limited by space and seasonal climate.
PC plastic,full name Polycarbonate.
PC plastic is a kind of excellent comprehensive performance engineering plastics.It has excellent physical, mechanical, electrical, and thermal properties,so it's known as the "king of the transparent plastic'
Classification:
Anti - static PC SHEET, conductive PC SHEET,fireproof PC SHEET,PC fiber - resistant, PC GF SHEET, PC+ABS SHEET,anti-ultraviolet ray resistance PC, food grade PC, anti - chemical PC.
Advantages:
1,Light weight
2,Impact resistance
3,Excellent physical, mechanical, electrical and thermal properties
4,Ultraviolet resistance
Disadvantages:
Polycarbonate is not resistant to ultraviolet light, no resistance to alkali, resistance to hydrolysis stability is not high, is the main performance defect is sensitive to the gap, resistance to organic chemistry, scratch resistance is poorer, long-term exposure to ultraviolet light yellow, are vulnerable to the erosion of some organic solvents.
Applications:
1. Dust-free room spacer
2. Equipment shield and test fixtures;
3. Commercial Building Lighting;
4. Soundproof walls;
5. Greenhouse;
6. Components for medical and pharmaceutical devices;
7. Face shields;
8. Skylights, etc
Modified use:
The purpose of the modified PC Plastic is to toughen, improve the processing performance, reduce the residual deformation, and increase the flame retardancy, etc.
PC/ABS can improve bending modulus, heat resistance and plating performance.
PC/PET and PBT can improve drug resistance and solvent resistance.
PC/PMMA added plexiglass to enhance the appearance of pearlescent color.
PC/PA and HIPS can improve impact toughness and surface finish.
PC/HDPE can improve water resistance, aging resistance, weather resistance and LDPE.
The PC Plastic USES fiberglass or carbon fiber to enhance modification and improve mechanical strength.
The flame retardant grade PC Plastic can be made with bromine flame retardant and antimony trioxide.
Other and polysulfone, aromatic polycarbonate, polyvinyl formaldehyde, polypropylene, polystyrene can be modified to achieve the balance between economy and performance.
Combustion characteristics:
Combustion condition: easy, softening foaming
Flame status: small amount of black smoke
After the fire: out of the fire
Bouquet: no special taste
Specification: the thickness of PC Plastic sheet material can be produced from 0.3mm to 1.9mm, the normal width is 600mm, the width cannot exceed 1200mm, the length is not limited.
The thickness of plate can be produced from 2mm to 180mm, the usual specification of 2-10mm is 1000mm* 2000mm, and the commonly used specification of 10-180mm is 600*1200 mm. PC Plastic sheet can also be customized according to requirements, and the width cannot exceed 1200mm, and the length is not limited.and The diameter of the PC Plastic rod can be produced from 2mm to 250mm, the length is 1 meter, and it can be ordered to be more than 3 meters in length.
Color: Black and clear, can also be made another color, and the color order is 500KG.
Modified varieties:PC Plastic can be added to the Glass Fiber, copper powder, and molybdenum disulfide enhancement plate according to customer's requirements.
Add antistatic agent to the permanent plate, the volume resistance value of 10 to the 6 to 9 power.
Add flame retardant to the flame retardant board from UL 94v-0 to HB combustion grade, and other modification requirements are required to customize various additional properties according to the actual use of the customer.
Product certification: most environmental certification reports and safety reports for raw materials, such as SGS report, CTI report, UL report, MSDS safety information, etc.
PC Plastic Rod,Engineering Clear PC Rod,Engineering PC Plastic Rod,Engineering Clear PC Plastic Rod
Dongguan Noegem Plastic Products Co.,Ltd , http://www.noegempLastic.com