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Composite Long Rod Insulator

Composite Long Rod Insulator

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Description

 

Long rod insulators support transmission lines on steel towers, isolating the lines from the tower. They play a key role in the safe supply of electricity. Depending on the transmission voltage and usage environment, long rod insulators are typically deployed as configurations of multiple insulators.

Composite long rod insulators are primarily used in suspension strings in straight-line supports and as tension strings in anchor towers and dead-end towers. They are also used in jumpers or portals of outdoor substations. In some cases, composite long rods are used in the guise of wooden poles, and more rarely in the guise of steel towers.

 

General

  1. Ratings:12~500kV.
  2. Application: for lines supporting and insulation of power transmission & distribution system.

 

Working Condition

  1. Ambient air temperature: -50℃~+50℃
  2. Altitude: ≤3000m
  3. Frequency: ≤100Hz
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Parameters

 

Main Technical parameters

 

Model Specified Mechanical Load (KN) Spacing H (mm) Arcing distance (＞mm) Min. Creepage distance (mm) Lightning impulse Withstand voltage (≥kVp) Wet power frequency withstands voltage (≥kVrms) Factory model
CS70XZ-100/465 70 360 215 480 100 50 FXBW-15/70
CS120XZ-100/465 120 400 215 480 100 50 FXBW-15/120
CS70XZ-120/450 70 413 275 544 120 60 FXBW-17.5/70
CS120XZ-120/450 120 513 275 544 120 60 FXBW-17.5/120
CS70XZ-125/480 70 461 320 550 125 70 FXBW-24/70(20mm/KV)
CS120XZ-125/480 120 490 320 550 125 70 FXBW-24/120(20mm/KV)
CS70XZ-145/745 70 500 355 750 145 80 FXBW-24/70(31mm/KV)
CS120XZ-145/745 120 529 355 750 145 80 FXBW-24/120(31mm/KV)
CS70XZ-185/900 70 541 400 900 180 95 FXBW-36/70
CS120XZ-185/900 120 570 400 900 180 95 FXBW-36/70
CS70XZ-230/1120 70 610 455 1250 230 105 FXBW-36/70(31mm/KV)
CS120XZ-230/1120 120 650 455 1250 230 105 FXBW-36/120(31mm/KV)
CS70XZ-325/1815 70 860 710 2210 325 150 FXBW-72.5/70
CS120XZ-325/1815 120 900 710 2210 325 150 FXBW-72.5/120
CS70XZ-550/3150 70 1220 1055 3400 550 230 FXBW-126/70
CS120XZ-550/3150 120 1255 1055 3400 550 230 FXBW-126/70
CS120XZ-650/3625 120 1475 1270 4100 650 275 FXBW-145/70
CS210XZ-650/3625 160 1654 1485 4495 650 250 FXBW-145/160
CS120XZ-1050/6300 210 2550 2300 8500 1050 460 FXBW-245/210
CS160XZ-1050/6300 160 2430 2200 7000 1050 400 FXBW-252/160
CS120XZ-1425/9075 120 3180 2780 9880 1425 570 FXBW-363/120
CS210XZ-1425/9075 210 3440 3000 10450 1425 570 FXBW-363/210
CS120XZ-2250/13750 120 4450 4050 14100 2250 740 FXBW-550/120
CS210XZ-2250/13750 210 4450 4050 13850 2250 740 FXBW-550/210
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Solutions

 

Composite pin insulators are widely used in medium-voltage power lines that serve industrial zones and large infrastructure networks.

✅ Common applications:

  • Overhead distribution lines in industrial parks
  • Pole-mounted transformers and capacitor banks
  • Renewable energy feeders (solar/wind farms)
  • Mining and petrochemical facilities
  • Rail and transportation electrification
  • Mountainous or coastal transmission routes
  • Remote and high-pollution environments

We supply insulators designed for medium-voltage power distribution in industrial, utility, and renewable energy sectors.

  • Standard and custom creepage designs
  • Fast lead time and competitive pricing
  • IEC, GB, and ANSI-compliant models
  • OEM/ODM solutions for switchgear and EPC partners.

METTZ Group stands as a consortium of Chinese electrical firms, renowned for its expertise in manufacturing electrical equipment. We are specialized in crafting a comprehensive suite of transmission and distribution equipment, covering a wide voltage range from 0.4 to 40.5 kV. Our commitment lies in delivering reliable and stable products to our clientele, encompassing vacuum circuit breakers (VCB), gas-insulated switchgear modular units (RMU), solid insulated switchgear (SIS) panels, air insulated switchgear (AIS) panels, and dry compressed air insulated switchgear panels (DIS).

Since our inception, METTZ Group has been at the forefront of adopting international cutting-edge technologies and equipment. We pride ourselves on our extensive collaboration and dialogue with leading experts in the electrical technology sector, both within China and internationally. Our offerings are tailored to meet the specific needs of our clients, including Original Equipment Manufacturer (OEM) services, customization of products to unique parameters and dimensions, all in alignment with our customers’ specifications.

METTZ Group is dedicated to innovation, quality, and customer satisfaction, ensuring that we remain a preferred partner for electrical equipment solutions worldwide.

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