Polymer insulator
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Polymer insulator
Composite tension & suspension insulator mainly consists of a core rod (ECR type or FRP type), silicone rubber housing and metal end fittings.
Material of end fittings: #45 forged steel, hot dip galvanized，thickness of the galvanization: ≥86μm
Material of the core: Epoxy & glass fiber (ECR type or FRP type).
Material of the weather sheds: HTV silicone, color grey
Housing to core: They are chemically bonded and the interface strength between the housing and core is higher than the tearing strength of housing itself.
Sealing: Juncture between end fitting and core rod is totally embedded in HTV silicone rubber, eliminating conventional and traditional sealing defects: (The other type is available that use RTV silicone sealant to seal the juncture between end fitting and core rod).
IEC61109
| Item No. | Dimensions | Mechanical | Electrical | |||||||
| Height(mm) | Min Dry Arcing Distance(mm) | Min Creepage Distance(mm) | Diameter of the rod(mm) | Number of sheds | Specified Mechanical Load(SML) (kN) | Routine Test Load(RTL) (kN) | Rated Voltage kV | Critical Impulse Flashover Voltage (Pos/Neg) kV | Power Frequency Flashover Voltage (Dry/Wet) kV | |
| FXB 11-15kV | 335 | 200 | 460 | 17 | 4 | 70 | 35 | 11-15 | 140/145 | 70/60 |
| FXB 24-27kV | 460 | 235 | 675 | 17 | 6 | 70 | 35 | 24-27 | 170/190 | 75/65 |
| FXB 33-36kV | 545 | 350 | 900 | 17 | 8 | 70 | 35 | 33-36 | 230/250 | 105/95 |
| FXB 33-36kV | 440 | 360 | 900 | 18 | 9 | 40 | 20 | 33-36 | 230/250 | 95/85 |
| FXB 33-36kV | 440 | 360 | 900 | 18 | 9 | 70 | 35 | 33-36 | 230/250 | 95/85 |
| FXB 69kV | 970±10 | 780 | 2130 | 18 | 18 | 100 | 50 | 69 | 410 | 200/185 |
| FXB 132kV | 1475±15 | 1300 | 3850 | 18 | 30 | 100 | 50 | 132 | 550 | 275/235 |
| FXB 230kV | 2380±30 | 1900 | 6000 | 24 | 60 | 160 | 80 | 230 | 1315 | 780/700 |
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