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Industrial Epoxy Resin Bushing Wall Piercing Sleeve Insulator 130X210X240mm
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epoxy resin cast bushing,
wall through bushing
TG3-12Q/130X210X240mm Epoxy Resin insulator Spout Wall Bushing with KYN28-12 Switchgear
High-voltage wall-piercing sleeve is suitable for insulation and support of power plant and electrical appliances with an AC voltage of 35kV or lower, which is used as guiding power part through the wall or other grounding material. The casing is suitable for environment temperature of-40 ~ + 40 ℃. It is not suitable for use in the condition of reducing the casing performance and the condition of the inner part of the casing household surface condensation. When the ambient temperature of the casing is above + 40 ℃, but not above + 60 ℃, the operating current of the casing is recommended to be reduced by 1.8 % for every 1 ℃ increase in ambient temperature. When the casing environment temperature is below-40 ℃ and the maximum allowable heating temperature specified in section 5.1 of GB12944.1 is met, the operating current is allowed to be overload for a long time. It is recommended to increase rated current load by 0.5 % for every 1 ℃ decrease in ambient temperature, but the added value should not exceed 20 % of rated current. The casing can be divided into five types according to the place of use: indoor common type, outdoor common type, outdoor type, outdoor type, outdoor-indoor high prototype and outdoor type. The common type is generally suitable for the installation site within 1000 M above sea level.