Polytek Composite Insulator
Polytek composite insulators pair a high-mechanical-strength fibreglass-reinforced rod and metal end fittings with a cross-linked polyolefin cladding material, replacing traditional glass or porcelain insulators for outdoor installations.
- IEC 61109
- CEA LWIWG-01(91)
- ANSI C29.11-1989
Polytek composite insulators pair a fibreglass-reinforced rod, at least twice the maximum working load's mechanical strength, with cross-linked polyolefin or silicone rubber cladding and hot-dip galvanized carbon steel end fittings (stainless steel on request), replacing porcelain or glass for outdoor installation.
Unibody insulators are injection-moulded directly to the rod and sealed to the end fittings with a silicone bead, for standard distribution dead-end/suspension and station/post use. Modular insulators assemble individually moulded weather sheds onto the rod, sealed with a high-dielectric-strength silicone gel, to meet a specific length or electrical requirement.
Dead-end/suspension fittings are attached by a monitored crimping process and proof-tested to verify the crimp; ball, socket and eye fittings are also available. Creepage distances follow IEC 60815; the design conforms to IEC 61109.
Covered on this page
- Composite Insulators (Polytek)
- Experience Matters
- Key Features
- Shape for Optimum Performance of Insulators
- Mechanical requirements
- Electrical Characteristics
- Creepage distance requirements
- Applicable standards and testing codes
- Customer specifications and installation requirements
- Environmental conditions
- Typical Design Data
- Key Features
Features & Benefits
- Long life
- Suitable for polluted environments and salty atmospheres
- Unique self-cleaning property
- Resistant to breakage and vandalism, practically unbreakable
- High mechanical strength, light weight
- Ease of installation, choice of end fittings
- Long-term surface hydrophobicity
Applications
- Distribution dead-end/suspension insulators and station/post insulators
- Replacing glass or porcelain insulators in outdoor installations
- Polluted or salty-atmosphere environments
Standards & Compliance
- IEC 61109
- CEA LWIWG-01(91)
- ANSI C29.11-1989
FAQs
Frequently Asked Questions
What is the Polytek Composite Insulator used for?
It is used for:
- Distribution dead-end/suspension insulators and station/post insulators
- Replacing glass or porcelain insulators in outdoor installations
- Polluted or salty-atmosphere environments
Which standards and test methods are quoted for it?
These:
- IEC 61109
- CEA LWIWG-01(91)
- ANSI C29.11-1989
Can I get a quote, a sample or a size that is not listed?
Send your cable details, quantity and application with the "Request a Quote or Sample" form at the foot of this page. For a size or variant that is not in the chart, describe what you need there, or use Technical support at the top of the page, and the technical team will confirm what can be supplied.
47+
Years manufacturing
100+
Countries served
140
Products in range
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