Aarde Rod

Solar earth rod is primarily used for grounding solar panel mounts. There is a potential difference between the photovoltaic modules and the ground, which can lead to faults like leakage and inductive coupling in poor environments. To ensure the normal operation and safety of the photovoltaic system, it is necessary to establish a reliable grounding system.

ZMS’s range of earth rod products for photovoltaic system includes copper ground rod, copper bonded steel and galvanized steel.

ZMS offers a variety of grounding materials in different shapes, such as cylindrical and flat strips. Cylindrical earth rods are available in various styles to suit different applications: one pointed end and one flat end, one pointed end and one threaded end, both ends threaded, ens.

Applications:

  • Grounding for solar panel mounts
  • Grounding for inverters
  • Grounding for distribution boxes
  • Lightning protection grounding for systems
  • Grounding for communication line shielding

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Aarde Rod

ZMS Solar Earth Rod Series

ZMS offers galvanized steel, copper bonded steel, bare copper grounding rods for normal PV projects. And we can also produce copper-zinc alloy earth rods and stainless steel earth rods, which are suitable for environments with corrosive media.

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Galvanized Steel Earth Rod

Galvanized Steel

Galvanized steel is a traditional grounding material with a certain level of corrosion resistance and conductivity. While this material may have the lowest initial cost, its shorter lifespan and higher maintenance costs can make it more expensive in the long run. ZMS’s galvanized steel earth rods are more suitable for short-term PV projects in areas with low corrosion resistance requirements.

Copper Bonded Steel

Copper Bonded Steel

Copper bonded steel combines the mechanical properties of steel with the conductivity and corrosion resistance of copper. It has become the most widely used grounding component in solar power systems in recent years. ZMS uses 99.9% pure copper electroplated onto a low-carbon steel core, resulting in high conductivity, high tensile strength, strong corrosion resistance, and easy installation. The ZMS copper bonded ground rod features a nickel layer on the steel core, which is then covered with an electrolytic copper layer. This process ensures a permanent molecular bond between the copper layer and the steel core, preventing cracks even when the rod is bent.

Pure Copper Grounding Pole

Bare Copper Conductor

Pure copper material offers excellent conductivity and corrosion resistance. Its conductivity is better than that of copper bonded steel. Pure copper earth rods have a service life of up to 40 years but are softer and prone to bending, making them unsuitable for drilling in harder soils. Due to its higher cost, pure copper earth rods are typically used in situations requiring extremely high conductivity.

Copper-clad Steel Earth Rod

Copper Bonded Steel Grounding Rod Specification

Structural FormDiameter /mmLength /mmWeight /kg
Standaard1425003.16
1430003.79
1625004.00
1630004.80
1825005.00
1830006.00
2025006.25
2030007.50
2225008.00
2230009.60
2525009.80
25300011.76
Combined14.212001.53
14.215001.88
17.212002.18
17.215002.73

Unique Manufacturing Process: Utilizing a cold-rolling and hot-drawing production process, ZMS achieves a metallurgical bond between copper and steel. This allows the rod to be drawn like a single metal without any disconnection, peeling, or cracking.

Superior Corrosion Resistance: The composite interface is created through high-temperature welding with no residues, ensuring the bonding surface is free from corrosion. The thick copper layer on the surface provides strong corrosion resistance and a long service life (over 30 jare), reducing maintenance costs for the grounding network.

Enhanced Electrical Performance: The outer layer of high-quality copper offers excellent conductivity, resulting in a much lower inherent resistance compared to conventional materials.

Grounding Installation

Features of ZMS Copper Bonded Steel Earth Rods

Broad, Safe, and Reliable Application: This product is suitable for grounding construction in various soil moisture, temperature, pH, and resistivity conditions.

Secure and Reliable Connections: Using specialized connecting tubes or thermite welding ensures firm and stable joints.

Easy and Quick Installation: With complete accessories and easy installation, construction speed can be significantly improved.

Increased Grounding Depth: A special connection method allows the rod to penetrate up to 35 meter ondergronds, meeting low-resistance requirements for special applications. The earth rod with one pointed end and one threaded end can be connected in series using a coaxial connector, allowing flexible adjustment of the grounding depth.

Low Construction Costs: Compared to traditional methods using pure copper rods and grounding strips, the cost is significantly reduced.

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Gereelde vrae

Begronding in FV-stelsels is een van die probleme wat die FV-installasiepersoneel die meeste oor die hoof sien, veral in kleinkapasiteit FV-stelsels waar daar nie veel aandag aan aarding en weerligbeskerming gegee word nie.

Egter, as aarding nie gedoen word nie, foute kan voorkom as gevolg van lae isolasie weerstand teen grond of oormatige lekstrome, kragopwekking raak en moontlik persoonlike veiligheid in gevaar stel. Daarbenewens, onbeskermde of verhoogde metaaldele is meer vatbaar vir weerlig. Sonder aarding, toerusting kan deur weerlig getref word, aansienlike skade aan die FV-kragopwekkingstelsel veroorsaak.

Aarding in FV-stelsels sluit hoofsaaklik aarding aan die sonkomponentkant in, omskakelaar kant, en verspreidingskaskant. Behoorlike aarding verhoog nie net die veiligheid van die sonnestelsel nie, maar verleng ook sy lewensduur.

Gegalvaniseerde staal is goedkoper, maar dit het baie gelaste lasse, wat lei tot laer konstruksiedoeltreffendheid en hoër konstruksiekoste. Suiwer koper het uitstekende geleidingsvermoë, maar is duur. Kopergebonde staal, egter, slegs koste 9.4% meer as gegalvaniseerde staal en bied 'n baie langer lewensduur. Daarom, kopergebonde staal elektriese aardstawe word tipies gekies as die primêre grondmateriaal in sonkragstelsels.

Earth Rod MaterialGalvanized SteelKaal koperCopper Bonded Steel
Resistivity Ω.mm1.7×10^-71.73×10^-8Depends on copper layer thickness
Density g/cm37.88.9
Corrosion Resistance0.065 mm/aCorrosion rate equivalent to
1/7 of galvanized steel
Comparable to copper
before destruction of the copper layer
Process CharacteristicsLarge size of material,
high welding requirements,
complex construction
Single process,
faster than spot welding
Single process,
faster than spot welding
Operating Life7 – 13> 40> 40
CostLowHighMedium

Kopergebonde staal

In fotovoltaïese kragstelsels, the horizontal grounding body of copper-bonded steel grounding materials commonly uses Φ10-Φ12 copper-bonded round steel, with a manufacturing length typically of 100 meters per reel. The grounding electrodes use Φ14 or Φ17.2 copper-bonded steel rods.

Connection method: Thermite welding (no external power or acetylene needed), using pure copper for joint materials, with no need for anti-corrosion measures at the welding points.

Galvanized Steel

In traditional grounding grids, horizontal grounding bodies made of hot-dip galvanized steel are generally designed with specifications of 50X5 or 60X6 galvanized flat steel, with a manufacturing length of 6 meters per piece. Vertical grounding electrodes use 50X5 hot-dip galvanized angle steel or Φ50 galvanized steel pipes, with a grounding electrode length of 2.5 meters per piece.

Connection method: Electric welding, met die sweispunte wat teen-roesbehandeling benodig, soos twee lae anti-roesverf en een laag asfaltverf.

Kaal koper

Vir suiwer kopergrondmateriaal, die horisontale aardingliggaam gebruik gewoonlik 25×4, 40×4, 50×5, of 60×6 mm koperstroke, of S70/S95/S120/S150/S185/S240 mm kaal koperdrade. Die vertikale aardliggaam gebruik tipies 16×2500 mm of 20×2500 mm koperstawe, of 50×3000 mm of 55×2500 mm suiwer koper elektrolitiese ioon aardelektrodes.

Connection method: Thermite welding, brand modder smelt sweiswerk, of warmsmeltsweiswerk.

Tydens konstruksie, die installering van 'n grondstaaf is baie buigsaam en kan by die spesifieke toestande op die terrein aangepas word. Verskeie metodes kan gebruik word, soos om die elektriese grondstawe direk met swaar hamers of elektriese hamers in die grond in te dryf. In komplekse grondtoestande waar die staaf nie ingedryf kan word nie, a hole can be drilled first before installing the ground rod.

In uniform soil conditions, if using a heavy hammer for installation and driving a single rod, it is advisable to install a drill bit (impact-resistant bolt) on the pointed end of the rod to prevent damage to the copper layer when the rod is driven deep. For deeper grounding, multiple rods can be connected using connectors to achieve the desired length, ensuring good electrical connection.

In cases where deep drilling is difficult or impossible, drilling tools can be used to penetrate rocks. After drilling, there are two methods for installing the earth rods:
1. Connect the rods to the desired length using connectors. Once drilled to the intended depth, vul die gat met 'n weerstandsverminderende middel en voeg water by totdat die gaatjie gevul is.
2. Connect the rods to the desired length using connectors. Na boor tot die beoogde diepte, meng die weerstandsverminderende middel met water en gooi dit in die gat om die staaf heeltemal te omhul.

Komponent-kant aarding:

  • Module Raam Aarding: Die aluminiumraam van die module wat met die berg in aanraking kom, beteken nie effektiewe aarding nie. Die aardingsgat van die module moet aan die berg gekoppel word vir effektiewe aarding. Die aardingsgate van die modules word tipies vir touverbindings gebruik, met die aardingsgate aan albei kante wat aan die metaalmontering gekoppel is.
  • Berggronding: Gewoonlik, ronde staal, gegalvaniseerde staalstawe, of kopergebonde staalstawe word vir aarding gebruik, met die aardingsweerstand wat vereis word om nie groter as 4Ω te wees nie.

Omskakelaar-kant aarding:

  • Operasionele gronding: Die PE-terminaal van die omskakelaar is aan die PE-rail in die verspreidingskas gekoppel, wat deur die verspreidingskassie gegrond is.
  • Beskermende aarding: Die aardingsgat van die omskakelaar-onderstel word gebruik vir herhaalde aarding om die omskakelaar en die veiligheid van operateurs te beskerm. Die beskermende aarding van die omskakelaar-onderstel kan óf 'n aparte aardelektrode gebruik óf een deel met die verspreidingskas.

Verspreiding Box-kant aarding:

  • Weerligbeskerming Aarding: Weerligbeskerming aan die AC-kant bestaan ​​uit versmeltings of stroombrekers en toerusting vir stootbeskerming (SPD). Die onderste punt van die SPD is aan die aardingrail van die verspreidingskas gekoppel.
  • Boksgronding: Volgens regulasies, die metaalraam en basisstaal van die verdeelboks moet geaard wees of aan neutraal gekoppel wees. Die kasdeur en die kasliggaam benodig kruisverbinding om betroubare aarding te verseker.
Groen Staatskrag se PV-projek

Projek Hoogtepunt

ZMS het kragte saamgesnoer met Groen Staatsmag (GSP), 'n pionier in hernubare energie-infrastruktuur, om 'n monumentale toe te rus 10 MWP fotovoltaïese projek in Kaboel, Afghanistan.

ZMS het die FV-projek omvattend ontleed en dit voorsien 1X10 en 1X6 sonkragkabels H1Z2Z2-K, 3X300 LV kabels, 3X300 MV kabels, sowel as ACSR 185/30 oorhoofse kabels. As aanvulling hierop was noodsaaklike bykomstighede soos PV-verbindings en noukeurig saamgestelde gereedskapkaste.

ZMS se verbintenis tot kwaliteit en betroubaarheid het gladde installasie en operasionele doeltreffendheid vergemaklik, by te dra tot die streek se volhoubare energie-infrastruktuur.

ZMS diens

Pasgemaakte vervaardiging

We understand that every customer's needs are unique. Daarom, ons bied persoonlike sonkragkabel-aanpassingsdienste, pas elke detail van kabelspesifikasies tot verbindingskoppelvlakke aan volgens jou spesifieke projekvereistes, verseker maksimum verenigbaarheid en doeltreffendheid.

Globale vinnige reaksie-logistiek

Met die ondersteuning van ons globale logistieke netwerk, ZMS verseker dat jou fotovoltaïese kabelbestellings enige uithoek van die wêreld veilig en stiptelik bereik. Ons professionele logistieke span monitor elke stadium van vervoer om tydige aflewering van u goedere te verseker.

Tegniese Ondersteuning

ZMS's technical support team is always on standby. Watter tegniese uitdagings jy ook al teëkom, ons kan vinnige antwoorde en professionele oplossings verskaf, verseker 'n kommervrye gebruikerservaring.

Groen Produksie

Ons sonkragkabels en bykomstighede voldoen streng aan omgewingstandaarde tydens die produksieproses, hul impak op die omgewing te verminder. Deur ZMS te kies, jy belê nie net in fotovoltaïese kabels van hoë gehalte nie, maar dra ook by tot die volhoubare ontwikkeling van die planeet.

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