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China SM Series Insulators from Leading Suppliers and Factory for Enhanced Power System Performance
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 |
| Certificates | CE, REACH, ELV, SGS |
| Quality System | ISO9001, ISO14001, IATF16949 |
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UL, CE, ROHS, REACH, IATF16949, ISO9001, ISO14001, PSCR
UL
CE
IATF16949
ISO9001
ISO14001
PSCR
ROHS
REACH
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Frequently Asked Questions (FAQ)
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.