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High-Quality China SM Series Insulators from Leading Suppliers and Factory for Enhanced Power System Performance Exporter, Exporters
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High-Quality China SM Series Insulators from Leading Suppliers and Factory for Enhanced Power System Performance Exporter, Exporters
Available in heights ranging from 20 to 76 mm and diameters between 17 and 50 mm, our insulators operate effectively within a voltage range of 800 to 4000 V. One of the critical performance metrics to consider is the torque value, which varies from 3 to 30 N·m depending on the product size, Manufactured from high-quality unsaturated resin materials, these insulators ensure exceptionally high and stable insulation resistance values. At a voltage level of 1000 V, the insulation resistance exceeds 23000 MΩ, making them ideal for maintaining stable insulation performance across different environmental conditions. As a trusted factory in the industry, we guarantee the highest standards in both product quality and customer service
Enhance Power Systems with SM Series Insulators Introduction
The SM spindle-shaped insulators are made of high-quality insulating materials, which can effectively prevent current leakage and provide reliable insulation protection for electrical systems. Within the specified operating voltage range, such as around 800 - 4000V, they can ensure that the current flows along the predetermined path, avoiding current leakage and thus guaranteeing the normal operation of electrical equipment and the safety of personnel.
They have a relatively high insulation resistance value and can maintain stable insulation performance under different environmental conditions. Even when exposed to a certain degree of pollution or moisture, they can control the leakage current within a safe range through their own structural and material characteristics.
Optimized electric field distribution. Moreover, the spindle-shaped structural design of the SM series insulators helps to optimize the electrical performance. Compared with the traditional-shaped MNS series insulators, it increases the creepage distance and reduces the risk of discharge.
The SM series insulators also have strong bending and tensile resistance. The spindle-shaped structure gives the insulators better mechanical properties when subjected to bending and tensile forces. It can effectively disperse external forces and avoid stress concentration at a single point, thereby improving the insulators' bending and tensile resistance.
Depending on the size of the product, the installation torque of the SM spindle-shaped insulators ranges from 3 to 30 N·m. Appropriate installation torque can ensure that the insulators are firmly installed on electrical equipment, preventing loosening during operation.
The cylindrical design at both ends facilitates installation and enables precise connection with other components, ensuring the stability and reliability of the installation.
In terms of size specifications, the SM spindle-shaped insulators have a certain standardization. Their height ranges from 20 to 76 mm, and the diameter ranges from 17 to 50 mm. This standardized design gives them good interchangeability in different electrical equipment, facilitating the maintenance and replacement of the equipment.
Low-Medium Voltage Electrical Insulators Specification
Product features (Technical Data)
Meet ROHS 2.0 environmental requirements Colors, inserts, materials can be customized according to customer requirements
Type
SM series（SM-type support insulators）
Product height
20-76mm
Product diameter
17-50mm
Thread
M5-M10
Insert material
brass, steel
Raw material
unsaturated resin (BMC/DMC)
MOQ
100 pcs
Working temperature
-40-140℃
Flame retardant grade
UL94 V0 (3mm)
Hot wire temperature
960℃
Operating voltage (AC)
800-3000V
Working voltage (DC)
1100-4200V
Test items
low and high temperature test, pressure resistance, torque strength, tension, bending force, pressure, insulation resistance, ROHS, flame retardant
Q:What materials are used to manufacture SM series insulators?
A: SM series spindle-shaped insulators are manufactured using high-quality unsaturated resin (BMC/DMC) as raw materials, with metal inserts available in both brass and steel.
Q:What are the voltage ratings for SM spindle-shaped insulators?
A: These support insulators are suitable for low-medium voltage applications, with an AC operating voltage range of 800V to 3000V and a DC working voltage range of 1100V to 4200V.
Q:What advantages does the spindle-shaped design offer over traditional MNS series?
A: The spindle-shaped design optimizes electric field distribution, increases creepage distance to reduce discharge risks, and provides superior mechanical strength against bending and tensile forces.
Q:Do these insulators meet international quality and environmental standards?
A: Yes, they are fully compliant with RoHS 2.0 environmental requirements and hold CE, REACH, ELV, SGS, and UL certifications. The manufacturing processes comply with ISO9001, ISO14001, and IATF16949 quality systems.
Q:What are the size specifications and installation torque requirements?
A: The standardized height ranges from 20 to 76 mm, and the diameter ranges from 17 to 50 mm with M5 to M10 threads. Depending on the size, the recommended installation torque ranges from 3 to 30 N·m.
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