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Emax
Product Description:
Spool Rack Insulator Galvanized D-bracket D Iron Bracket
This hot-dip galvanized D-bracket serves as critical structural hardware for mounting suspension-type insulators in overhead transmission and distribution systems. Engineered for spool rack configurations, it provides secure anchoring points for insulator strings while maintaining electrical clearance and mechanical integrity under operational loads.
Construction & Material:
Fabricated from low-carbon structural steel
Hot-dip galvanized per ASTM A123 specifications
Minimum 85μm zinc coating thickness
D-shaped profile with radius-matched contouring
Reinforced throat geometry at load-bearing points
Key Technical Parameters:
Load Rating: 25 kN UTS
Working Load Limit: 8 kN
Corrosion Resistance: >500 hours salt spray
Temperature Range: -40°C to +120°C operational
Bolt Compatibility: M16 x 2.0
Design Features:
Optimized D-Profile: Radius curvature matches standard insulator diameters, eliminating point-load stress
Galvanization Integrity: Zinc-iron alloy layers ensure sacrificial protection even at cut edges
Anti-Slip Grooving: Machined retention channels prevent insulator slippage during vibration
Asymmetric Mounting: Offset bolt holes facilitate angled installations in lattice structures
Drainage Ports: Base apertures prevent moisture/contaminant accumulation
Installation Protocol:
Torque settings: 45-50 N·m for M16 fasteners
Requires anti-seize compound on threads
Mandatory 6mm clearance between bracket and tower face
Compatible with DIN 2076 R-clips for secondary retention
Applications:
Suspension insulator sets in 33kV-230kV systems
Dead-end configurations with polymer/porcelain insulators
Retrofit replacement for corroded U-brackets
Temporary outage bypass installations
Quality Assurance:
Batch-tested for coating adherence
Dimensional compliance per IEC 60120
Non-destructive testing on all weld points
Traceability: Laser-etched heat number per ISO 9227
Advantages vs. Alternatives:
Structural Efficiency: 22% higher torsional rigidity than standard U-brackets
Maintenance Reduction: Zinc coating lifespan exceeds 30 years in C3 environments
Error-Proof Installation: Color-coded orientation markers
Interoperability: Backward-compatible with legacy IEC 60120 insulator dimensions
Packaging:
Wooden crates
VCI paper interleaving
24 units per master carton
Email: nurul@emaxmetal.com
Product Description:
Spool Rack Insulator Galvanized D-bracket D Iron Bracket
This hot-dip galvanized D-bracket serves as critical structural hardware for mounting suspension-type insulators in overhead transmission and distribution systems. Engineered for spool rack configurations, it provides secure anchoring points for insulator strings while maintaining electrical clearance and mechanical integrity under operational loads.
Construction & Material:
Fabricated from low-carbon structural steel
Hot-dip galvanized per ASTM A123 specifications
Minimum 85μm zinc coating thickness
D-shaped profile with radius-matched contouring
Reinforced throat geometry at load-bearing points
Key Technical Parameters:
Load Rating: 25 kN UTS
Working Load Limit: 8 kN
Corrosion Resistance: >500 hours salt spray
Temperature Range: -40°C to +120°C operational
Bolt Compatibility: M16 x 2.0
Design Features:
Optimized D-Profile: Radius curvature matches standard insulator diameters, eliminating point-load stress
Galvanization Integrity: Zinc-iron alloy layers ensure sacrificial protection even at cut edges
Anti-Slip Grooving: Machined retention channels prevent insulator slippage during vibration
Asymmetric Mounting: Offset bolt holes facilitate angled installations in lattice structures
Drainage Ports: Base apertures prevent moisture/contaminant accumulation
Installation Protocol:
Torque settings: 45-50 N·m for M16 fasteners
Requires anti-seize compound on threads
Mandatory 6mm clearance between bracket and tower face
Compatible with DIN 2076 R-clips for secondary retention
Applications:
Suspension insulator sets in 33kV-230kV systems
Dead-end configurations with polymer/porcelain insulators
Retrofit replacement for corroded U-brackets
Temporary outage bypass installations
Quality Assurance:
Batch-tested for coating adherence
Dimensional compliance per IEC 60120
Non-destructive testing on all weld points
Traceability: Laser-etched heat number per ISO 9227
Advantages vs. Alternatives:
Structural Efficiency: 22% higher torsional rigidity than standard U-brackets
Maintenance Reduction: Zinc coating lifespan exceeds 30 years in C3 environments
Error-Proof Installation: Color-coded orientation markers
Interoperability: Backward-compatible with legacy IEC 60120 insulator dimensions
Packaging:
Wooden crates
VCI paper interleaving
24 units per master carton
Email: nurul@emaxmetal.com
