Products Description
Our Porcelain Disc Suspension Insulator are high-performance insulation components engineered for medium to high-voltage transmission and distribution lines.
Compliant with international industry standards, this full range covers load ratings from 44kN to 160kN, catering to diverse application scenarios-from general overhead lines to harsh environmental conditions.
Crafted with high-strength brown-glazed porcelain and hot-dip galvanized steel fittings (cap and pin), bonded by high-quality cement, these insulators deliver exceptional electrical insulation, mechanical durability, and resistance to weathering, pollution, and electrical arc.
Applications
-Overhead transmission lines (11kV–500kV)
-Distribution networks in urban, rural, and industrial areas
-Power stations and substations
-Medium-pollution environments (e.g., industrial zones, coastal areas)
Product parameters
| Porcelain Disc Suspension Insulator Item | C330152-1XP-45C-M | C330252-2XP-70-M | C330352-3XP-70C-M | C330452-4XP-100-M | C330552-5XP-120-M | C330652-5XP-110C-M | C330752-9XP-16M | C330852-8XP-45C-M | C330952-9BXP-45C-M | C331052-10XP-100-M |
| Class ANSI | - | - | - | - | - | - | - | - | - | - |
| Main Dimensions (mm) | ||||||||||
| D | 165 | 190.5 | 254 | 254 | 254 | 254 | 280 | 114 | 133 | 280 |
| H | 140 | 146 | 146 | 146 | 146 | 146 | 146 | 159 | 165 | |
| Leakage Distance (mm) | 178 | 210 | 292 | 292 | 292 | 292 | 292 | 171 | 171 | 280 |
| Power-frequency Puncture Voltage (kV) | 80 | 80 | 110 | 110 | 110 | 110 | 110 | 80 | 80 | 110 |
| Average Flashover Voltage (kV) | ||||||||||
| Power-frequency - Dry | 60 | 65 | 80 | 80 | 80 | 80 | 80 | 60 | 60 | 80 |
| Power-frequency - Wet | 30 | 35 | 50 | 50 | 50 | 50 | 50 | 30 | 30 | 50 |
| Critical-Impulse (1.5×40μs) - Positive | 100 | 115 | 125 | 125 | 125 | 125 | 125 | 110 | 110 | 125 |
| Critical-Impulse (1.5×40μs) - Negative | 100 | 115 | 130 | 130 | 130 | 130 | 130 | 90 | 90 | 130 |
| Radio-influence Voltage | ||||||||||
| Test Voltage to Ground (kV) | 7.5 | 7.5 | 10 | 10 | 10 | 10 | 7.5 | 7.5 | 7.5 | 10 |
| Maximum RIV at 1000kHz (μV) | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| Rated E & M Failing Load (kN) | 44 | 70 | 70 | 111 | 120 | 111 | 160 | 44 | 44 | 160 |
| Tension Proof Load (kN) | 22 | 35 | 35 | 55.5 | 55.5 | 55.5 | 80 | 22 | 22 | 80 |
| Impact Strength (N·m) | 5 | 5.5 | 6 | 7 | 7 | 10 | 5 | 5 | 5 | 10 |
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Note：We provide various similar insulators: 1KV250A-4000A, 10NF250, 20NF250, etc., which can be customized according to customer needs.
Customization requirements: Customers need to provide drawings or parameters for our production department to confirm.
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