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polymer line post insulators

Polymer Line Post Insulators

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Description:

NGK-LOCKE produces Line Post (LP) insulators in four core sizes for transmission applications in voltage classes up to 500kV.

Hardware configurations following ANSI standards are available, and mounting options include flange ends, multiple configurations of rigid and bendable bases that can be mounted to curved and flat surfaces.

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Catalog No. Typical System Voltage kv No. of Sheds Dry Arcing Distance, in. Leakage Distance, in. Low Freq. Flashover Voltage - Dry, kV Low Freq. Flashover Voltage - Wet, kV Critical Impulse Flashover Voltage - Pos., kV Critical Impulse Flashover Voltage - Neg., kV Maximum Design Cantilever Load, lbs. Maximum Design Cantilever Load, kN Routine Tensile Load, lbs. Routine Tensile Load, kN Approx. Weight, lbs. Line Side End Fitting Tower Side Mounting Base Section Length, in.
L1-SN091-11
9
13
34.6
150
125
255
310
1540
6.8
20.1
19.7
L1-SN091-16
9
13
34.6
150
125
255
310
1865
8.3
13.9
19.2
L1-SN091-17
9
13
34.6
150
125
255
310
1865
8.3
15.4
19.1
L1-SN091-21
9
13
34.6
150
125
255
310
1500
6.7
20
19.2
L1-SN091-26
9
13
34.6
150
125
255
310
1795
8
13.8
19.7
L1-SN091-27
9
13
34.6
150
125
255
310
1795
8
15.2
19.7
L1-SN091-31
9
13
34.6
150
125
255
310
1460
6.5
22.1
19.6
L1-SN091-36
9
13
34.6
150
125
255
310
1745
7.8
15.9
20.2
L1-SN091-37
9
13
34.6
150
125
255
310
1745
7.8
17.4
20.1
L1-SN091-46
9
13
34.6
150
125
255
310
1825
8.1
13.5
19.5
1 2 3 4 … 2,039

Polymer Line Post Insulators

Drop Tongue

Our line post end fittings are designed to secure, connect, or terminate conductors depending on the application. Each fitting is built for strength, proper alignment, and reliable performance in demanding environments.

With multiple sizes and configurations available, these fittings are engineered to meet specific line requirements while allowing for efficient installation in the field.

H. Clamp Top

Our line post end fittings are designed to secure, connect, or terminate conductors depending on the application. Each fitting is built for strength, proper alignment, and reliable performance in demanding environments.

With multiple sizes and configurations available, these fittings are engineered to meet specific line requirements while allowing for efficient installation in the field.

V. Clamp Top

Our line post end fittings are designed to secure, connect, or terminate conductors depending on the application. Each fitting is built for strength, proper alignment, and reliable performance in demanding environments.

With multiple sizes and configurations available, these fittings are engineered to meet specific line requirements while allowing for efficient installation in the field.

Top Flange

Our line post end fittings are designed to secure, connect, or terminate conductors depending on the application. Each fitting is built for strength, proper alignment, and reliable performance in demanding environments.

With multiple sizes and configurations available, these fittings are engineered to meet specific line requirements while allowing for efficient installation in the field.

Rigid Flat Base

Our line post end fittings are designed to secure, connect, or terminate conductors depending on the application. Each fitting is built for strength, proper alignment, and reliable performance in demanding environments.

With multiple sizes and configurations available, these fittings are engineered to meet specific line requirements while allowing for efficient installation in the field.

NGK-Locke Production

Engineering Global Grid Reliability Through Excellence

NGK-Locke Production merges advanced Japanese technology with American manufacturing heritage to deliver world-class high-voltage insulators. We specialize in precision-engineered porcelain and polymer solutions, ensuring the safety, durability, and superior performance of global power transmission infrastructure.

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The NGK-Locke mission

Our core mission at NGK-Locke is to enrich human life by adding new value to society through the manufacturing of superior high-voltage insulators. We are dedicated to supporting a stable global power infrastructure while maintaining a deep commitment to environmental stewardship and sustainable corporate growth excellence.

NGK-Locke Team

The NGK-Locke Vision

We envision a future defined by clean energy where our innovative polymer technologies lead the transition toward carbon neutrality. By consistently exceeding customer expectations and maintaining rigorous safety standards, we strive to be the world’s most trusted partner for high-quality, sustainable electrical transmission components and solutions.

Environmental Sustainability

Based on the NGK Group Philosophy of Enriching Human Life by Adding New Value to Society, we aim to provide new value through our unique ceramic technologies to contribute to the realization of a sustainable society and earn the trust of society by meeting its expectations toward us.

NGK Group Basic Sustainability Policy

How Can We Help You?

Tell us about your needs or challenges, and our team will guide you toward the right solution with clear, responsive support at every step.


    U.S NGK-Locke Office Location

    Virginia Beach Headquarters

    Main Office

    Virginia Beach Headquarters

    1609 Diamond Springs Road Virginia Beach, VA 23455

    Phone: (757) 460-3649
    Fax: (757) 460-3649

    Email Link: marketing@ngk-locke.com