Wire insulator (WIRE Insulator)
Product details
- Product : Wire insulator
- Material : Ceramichigh quality
- Small size: Diameter 52 mm, Height 45 mm
- Large size: Diameter 75 mm, Height 65 mm
- Operating voltage: 750 V
- Electrical resistance : >1000 MΩ
- Temperature range : -40°C to +70°C
- Manufacturing standard : TIS and IEC
Wire insulator (Spool Insulator) — all models available at a great price
Wire insulator (Spool Insulator) is an essential component used to hold low-voltage power lines in the electrical distribution system, acting as an electrical insulator that prevents current from leaking from the line into the pole structure or electrical rack. At TETA INTERTRADE we stock Wire insulators in every size, both small and large models, widely used in the systems of the Provincial Electricity Authority (PEA) and the Metropolitan Electricity Authority (MEA). Made from high-quality porcelain material from leading brands, they are designed for safe use, weather-durable, and efficiently meet the needs of low-voltage electrical work.
What is a Wire insulator (Spool Insulator)?
Its surface is finely finished to provide excellent electrical-insulation properties. Its main role is to support and secure low-voltage (Low Voltage) power lines to pole structures or building walls. Working together with a Rack, it organizes the wires so they do not touch the metal structure, helping prevent current from leaking through the structure into the ground, while increasing the safety of the electrical system.
What does a Wire insulator do, and what work is it suited for?
The Wire insulator comes in 2 sizes, each suited to different jobs. The choice depends on the wire size and the installation area, with details as follows:
1. Small Wire insulator
The small-size Wire insulator suits installation of wires no larger than 16 sq.mm. It is often used in indoor electrical systems such as small factories, warehouses, or commercial buildings. Its compact size makes it easy to install, space-saving and neat — ideal for work that needs tidiness and does not bear much weight.
2. Large Wire insulator
The large-size Wire insulator suits installation of wires of 25-50 sq.mm. It is popular for outdoor electrical systems or large factories that must run many wires. Its larger size bears more weight, withstands outdoor weather well, and offers a wider wire-laying area — suited to work that needs exceptional strength and durability.
DetailsWire insulator
TETA INTERTRADE sells every model of Wire insulator, rated for 750 V and assured under the TIS standard. If you would like more details on price, specifications, and applications, you canask our teamdirectly.
For businesses that need to buy in large quantities, we offerwholesale Wire insulators in all sizes and models, so you can manage your project costs efficiently.
Precautions when installing a Wire insulator
To keep the electrical system safe and long-lasting, installers should keep the following precautions in mind:
- Check that the Wire insulator size matches the wire weight and the distance between poles. Using a size that is too small for heavy wire may cause the insulator to crack or break.
- Inspect for chips, cracks, or flaking of the porcelain glaze. If any damage is found, even minor, do not install it, as this reduces its insulating properties.
- Check that the pin inserted through the insulator hole is secure and that the fixing nut is tightened firmly, to prevent the insulator from coming loose from the Rack.
- In areas with high pollution or near the sea, clean the insulator surface regularly to remove salt deposits or dust that could conduct electricity.
Order Wire insulator Price at wholesale price, assured to standard TIS at TETA INTERTRADE
When it comes to low-voltage electrical equipment, especially Wire insulators, strength and standards matter most. Buying from a trusted distributor like TETA INTERTRADE — an electrical-equipment partner ready to offer the right solution for your project — is therefore the best choice.
- A full range of electrical equipment, covering both high- and low-voltage
- A direct importer from manufacturers, at great value
- Stock ready to ship, supporting urgent jobs
- Advice from a team of engineers and technicians
- Free nationwide delivery
For those interested in buying Wire insulators at wholesale prices, TETA INTERTRADE offers every model, with a team ready to advise for free, plus special discount promotions and free nationwide delivery. To order or ask for more information, contact us at
- LINE : https://lin.ee/NaG9WJP
Phone: 02-068-9690 or 086-308-3741
Frequently asked questions about Wire insulator (FAQs)
Q: Wire insulatorsmall sizeandlarge size how do they differ ?
A : They differ in wire size and load capacity: the small model suits wire up to 16 sq.mm, focused on indoor work, while the large model handles 25-50 sq.mm wire, focused on outdoor work that needs high strength.
Q: What material is the Wire insulator made from, and is it durable in Thai weather?
A : It is made from high-quality porcelain (Porcelain) with a glossy glazed surface, highly durable against sunlight, humidity, and UV radiation in Thailand — it does not become brittle and crack easily like plastic materials.
Q: What structures can a Wire insulator be attached to?
A : It is commonly installed together with a Rack on power poles, or attached to building walls as a point to safely bring the low-voltage main line (750V) into the building.
Q: How should a Wire insulator be inspected before installation?
A : Check the porcelain surface — it must be free of chips, cracks, or flaking, because even minor damage reduces its electrical-insulation performance and may cause current leakage.
Q: How can I be sure of getting genuine, standard-compliant products when ordering from TETA INTERTRADE?
A : Every product meets the TIS standard and the electricity-authority standards (PEA/MEA). We are a direct importer, keep stock ready to ship, and have a team of engineers to give technical advice before every use.