CAD WELDING AND ELECTRICAL GROUNDING – SECURE YOUR BUILDING FROM UNEXPECTED LIGHTNING STRIKE OR POWER SURGE.
The CAD welding method makes permanent electrical connections of copper-to-steel or copper-to-copper. Also known as Exothermic welding, exothermic bonding or thermite welding (TW). This process employs molten metal to join the conductors for grounding. It’s the chemical between aluminum powder and a metal oxide that produces the heat.
The consequences of an unexpected lightning strike or power surge can be catastrophic for a facility:
- Personnel are at risk.
- Critical equipment may be damaged or destroyed.
- Data can be corrupted.
- The costs of operational downtime and lost revenue can be very substantial. As industries become more dependent on increasingly sensitive equipment, proper protection from lightning and dangerous over-voltage transients is necessary.
WHY CAD WELDING?
- Your system can withstand repeated fault currents without failing during operation hours.
- Permanent bond that will not corrode, increase in resistance or become lose.
- Join any needed materials together: steel to steel, copper to copper, copper to galvanized or plain steel, copper to copper clad steel, copper to bronze/ brass/stainless steel, etc.
- Connections form a solid bond around the conductors assuring continuity. The cross sectional area of the weld has greater current carrying capacity than the conductors.
- Ability to withstand high current. The melting temperature of CAD Welding connection is higher than the melting temperature of copper (1082°C). For this reason, in the event of abnormal heating due to a high fault current, the conductor is destroyed before the connection.
- No external power or heat source required
- Is easy to check visibly for quality
CAD WELDING EXOTHERMIC CONNECTION
A welding process that eliminates the connection by forming a molecular bond.
Connections are the weak point of all electrical circuits and especially earthing circuits subjected to aging and corrosion. The capacity of an earthing circuit to protect the safety of personnel depends on the quality of the connections made.