Flame Retardant for Brazilian Small Busbars

Flame-retardant busbar solutions include epoxy-encapsulated RESINBAR systems, TE Raychem heat shrink tubing, and flexible PVC or silicone-insulated busbars.

Epoxy-Encapsulated Busbars

RESINBAR from Anord Mardix is a busbar system where copper (CXC) or aluminum (CXA) conductors are fully encapsulated in a specialist IP68-rated composite epoxy resin. This construction provides flame retardancy, self-extinguishing properties, and high resistance to fire, water, humidity, and chemicals, making it suitable for small busbars in harsh environments . The epoxy resin ensures uniform insulation and mechanical protection, ideal for applications requiring high safety and durability.

Heat Shrink Tubing

TE Raychem LVIT Busbar Insulation Tubing is a flame-retardant, heat-shrinkable solution for low-voltage busbars (up to 1 kV). It can be applied to curved or bent busbars of circular or rectangular cross-section and is suitable for both enclosed and exposed busbars in switchgear, substations, and motor control centers . The tubing is made from thermoplastic polymer materials that shrink tightly over the busbar when heated, providing electrical insulation, environmental protection, and fire resistance.

Flexible Insulated Busbars

nVent ERIFLEX Flexibar offers flexible busbars insulated with self-extinguishing PVC or silicone compounds. These materials are low-smoke, flame-retardant, and halogen-free, suitable for compact power connections where bending and twisting are required . They are ideal for low-voltage power and grounding connections, providing both safety and ease of installation.

Material Considerations

When selecting flame-retardant solutions for small busbars, consider:

• Operating voltage and current: Ensure the insulation material meets the required dielectric strength .
• Thermal conditions: Materials like epoxy and silicone withstand high temperatures.
• Mechanical stress: Flexible or encapsulated busbars provide protection against vibration and bending.
• Environmental exposure: Choose materials resistant to moisture, chemicals, and UV radiation.
• Regulatory compliance: Look for UL94 V-0 or equivalent certifications for flame retardancy .

Recommendation

For Brazilian small busbars, RESINBAR epoxy-encapsulated busbars are ideal for high-safety, high-durability applications, while TE Raychem heat shrink tubing and nVent ERIFLEX flexible busbars provide versatile, flame-retardant insulation for low-voltage systems. Selection should be based on voltage rating, environmental conditions, and mechanical requirements.