Wenzhou Shuowei Electric Co., Ltd. is one of the most reliable manufacturers and suppliers of 12kv 24kv 36kv epoxy resin through the wall bushing in China, also supports customized service. Welcome to wholesale bulk advanced 12kv 24kv 36kv epoxy resin through the wall bushing in stock here from our factory. If you have any enquiry about quotation, please feel free to email us.
Epoxy Resin Through The Wall Bushing
Products Description
High-voltage wall bushings (as shown in the product images) are critical insulating components in power systems, designed to enable conductive parts (e.g., busbars, cables) to pass through walls, cabinets, or equipment partitions. Their core functions include electric insulation (isolating live parts from grounded structures) and mechanical fixation (securing conductors), while withstanding voltage, current, and environmental stresses.
Products Materials and processes
Epoxy resin - mainstream and performance king
Almost all types of 10kV~40.5kV medium voltage switchgear, especially inflating cabinets and high-end air insulation cabinets.
The manufacturing process employs vacuum casting. Precisely measured components-including epoxy resin, a curing agent, and fillers such as quartz powder-are mixed and poured into a mold fitted with conductive rods (typically copper) under a vacuum. The assembly is then heat-cured to solidify and form the final product.
Core Advantages:
Excellent Insulation: High dielectric strength and extremely low partial discharge for safety.
High Strength: Withstands strong short-circuit forces without damage.
Heat Resistant: Stable at high temperatures and dissipates heat effectively.
Superior Seal: Provides a permanent, gas-tight barrier, crucial for gas-insulated systems.
Waterproof: Repels moisture, ensuring stable performance in humid conditions.
Flame Retardant: Self-extinguishing for enhanced safety.
Design Freedom: Can be molded into complex, multi-functional shapes.
Products parameters
| Name | Model | Voltage | Install data(mm) | Height(mm) |
| Epoxy resin bushing | TG1-10/128(100X100) | 12KV | 100X100 | 250 |
| TG1-10/182(125X125) | 125X125 | 235 | ||
| TG2-10/210(152X152) | 152X152 | 260 | ||
| TG3-10/110X180 | 110X180 | 190 | ||
| TG3-10/140X200 | 140X200 | 230 | ||
| TG3-10/130X210 | 130X210 | 236 | ||
| TG3-24/175X255X218 | 24KV | 175X255 | 218 | |
| TG3-24/175X255X310 | 175X255 | 310 | ||
| TG3-24/180X180X280 | 180X180 | 280 | ||
| TG3-24/190X190X330 | 190X190 | 330 | ||
| TG3-35/260X260X395 | 40.5KV | 260X260 | 395 | |
| TG3-35/260X260X420 | 260X260 | 420 | ||
| TG3-35/260X260X450 | 260X260 | 450 | ||
| TG3-35/220X220X420 | 220X220 | 450 | ||
| TG3-35/180X180X550 | 180X180 | 550 |
| A | 6 | 7 | 8 | 12 | ||||||
| B | 42 | 52 | 62 | 62 | ||||||
Products parameters
| Parameter | 12kV | 24kV | 36kV |
|---|---|---|---|
| Rated Voltage (Ur) | 12kV | 24kV | 36kV |
| Rated Frequency | 50/60Hz | ||
| Power Frequency Withstand Voltage (1min) | 42kV (dry) / 30kV (wet) | 75kV (dry) / 50kV (wet) | 95kV (dry) / 65kV (wet) |
| Lightning Impulse Withstand Voltage (1.2/50μs) | 105kV (peak) | 170kV (peak) | 200kV (peak) |
| Rated Current (Ir) | 400A, 630A, 1250A, 2000A, 3150A | 630A, 1250A, 2000A, 3150A | 630A, 1250A, 2000A, 3150A |
| Partial Discharge (PD) | ≤10pC at 1.1Ur | ||
| Creepage Distance | ≥240mm (class Ⅱ pollution) | ≥480mm (class Ⅱ pollution) | ≥720mm (class Ⅱ pollution) |
| Dielectric Strength | ≥15kV/mm (epoxy resin) | ≥15kV/mm (epoxy resin) | ≥15kV/mm (epoxy resin) |
| Operating Temperature Range | -40℃ ~ +90℃ | ||
| Mechanical Bending Strength | ≥300N·m (flange) | ≥400N·m (flange) | ≥500N·m (flange) |
| Protection Degree (IP) | IP68 (optional) | IP68 (optional) | IP68 (optional) |
Products Packing
FAQ
Q 1. Are you factory?
A.YES, Welcome to visit our company and factory.
Q 2. How's the delivery time?
A. Usually it will take about 7-30 days for MOQ
Q 3.Can you design customer's packing?
A.YES.We can customized the package for you.
Q 4.Do you have abilityfor OEM/ODM cooperation?
A.OEM/ODM cooperation is welcomed. And we have full experience about them.
Q 5.We wants to know month capacity.
A. lt depends on which model. Generally, month capacity can reach near 100,000pcs.
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