Market application
Grounding and bonding connection selection
United States buyers commonly use the terms grounding and bonding. Relevant applications can include substations, renewable energy, telecommunications, industrial facilities, data centers, rail systems and lightning-protection projects. Each drawing should identify the conductors and surfaces being joined.
The United States uses AWG/kcmil and inch-based descriptions as well as metric dimensions in some project documents. Supplying both the stated size and actual conductor dimensions helps prevent ambiguity when matching a graphite mold and weld material charge.
Project sectors
Where permanent connections may be specified
Application suitability and acceptance must be confirmed by the project designer and relevant authority.
Substation grounding grids
Connections used within the grid, between ground leads and between equipment or structures.
Solar and wind facilities
Permanent conductor, electrode and equipment-bonding connections defined by project drawings.
Telecom and data infrastructure
Grounding and bonding connections for towers, equipment areas and data facilities.
Industrial and transport systems
Cable, bar, steel, rail and rebar configurations for specified continuity requirements.
Complete system
Products selected as one connection package
A cartridge, mould and accessory set should be selected from the same confirmed connection data.
Weld material
Measured cartridges for the specified mould and conductor combination, available in multiple charge sizes.
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Graphite moulds
Reusable tooling made for a defined joint geometry, orientation and conductor dimensions.
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Kits & accessories
Handle clamps, steel discs, ignition equipment, cleaning tools and preparation accessories.
View kit components →Specification context
Confirm the current local and project requirements
NFPA 70 Article 250 addresses grounding and bonding requirements in the National Electrical Code. IEEE 837-2024 provides methods for qualifying permanent connections used in substation grounding. Neither reference selects a product automatically; the engineer and authority having jurisdiction determine project compliance.
Official reference: IEEE 837-2024 – permanent substation grounding connections ↗A reference to a standard or authority does not claim automatic product approval. Always obtain project-specific engineering and material approval.
Accurate quotation
What to send with your enquiry
For a USA quotation, provide the connection code or sketch, conductor material, AWG/kcmil or measured dimensions, ground-rod diameter, quantities, destination ZIP code and the approval documents requested by the project. Confirm required listings or third-party approvals before ordering.
- Connection drawing or joint description
- Conductor materials and exact dimensions
- Quantity for each connection
- Required moulds, clamps and consumables
- Delivery destination and commercial terms
- Required certificates and submittal documents
Experience and accountability
Technical information from the manufacturer
This page is published by Amiable Impex, the manufacturer of Aura Weld® exothermic welding products. Product selection guidance is based on connection geometry and supplied technical information. Installation must be performed by trained personnel using the instructions, safety controls and approvals applicable to the project.
Technical content reviewed by the Amiable Impex product team ·
Frequently asked questions
Questions from United States buyers
Does Aura Weld supply exothermic welding products for USA enquiries?
Amiable Impex reviews export enquiries from the United States. Commercial terms and product documentation are confirmed for the specific order.
Do you call the product a mould or a mold?
Both terms describe the graphite tooling. This page uses the US spelling “mold,” while Aura Weld documentation may also use “mould.”
Can I order using only an AWG conductor size?
Provide the AWG or kcmil size plus conductor construction and the complete connection. Actual dimensions are helpful when verifying the mould cavity.
Are all Aura Weld products automatically NEC approved?
No. NEC compliance applies to the installation, and acceptance depends on the authority having jurisdiction and project requirements. Confirm required product approvals before purchase.
What does IEEE 837 cover?
IEEE 837 provides qualification direction and test methods for permanent connections used in substation grounding. Consult the current standard and project specification for applicability.