Telecom Conduit Projects with Direct Burial Fiberglass Conduit

Telecom Project Overview

Whether it be an urban or rural setting, we all rely on access to reliable internet and mobile connectivity at any given time. This commodity has evolved into a necessity - now found in most households and neighborhoods - all within the space of 20 years.

With the manner and scale of communications growing, a need for larger broadband capacity emerged, a headache solved by fiber optic cable. Fiber optic cable transmits mega amounts of information at record speeds but requires the utmost protection from telecom conduits to do so.

Epoxy fiberglass has established itself as the conduit of choice for most networking operating companies looking to protect their fiber optic highway.

Amongst the many necessities for telecom conduit, structures primarily need to function well in extreme environments. Fiberglass is a revolutionary fully weatherproof material, capable of handling harsh temperatures, making it usable even in extreme environments such as the Arctic!

Benefits of Below Ground Fiberglass Reinforced Epoxy Conduit

For telecommunication projects, Below Ground Fiberglass Reinforced Epoxy Conduit has a range of advantages over other commonly used conduits.


The lightweight nature of epoxy fiberglass conduit (considerably less than PVC or steel) enables big cost savings through reduced system weight, reduced assembly time, reduced freight charges, and lower support costs.

Temperature range

FRE® conduit is able to withstand temperatures ranging from -40°F to 230°F, meaning that even in the coldest and warmest temperatures, the conduit maintains its unique characteristics - something that PVC is unable to do.


Conduit contains no chlorine, halogen or other toxic materials, unlike PVC which can release toxic bromine or chlorine.

Flexible and enduring

Epoxy fiberglass conduit is flexible and enables it to conform to even the most uneven surfaces.

Cable fusion

While steel conduit will weld with cable and PVC conduit may fuse or melt under electrical fault conditions, you will not witness Cable Fusion in FRE®.

Direct Burial Standard Wall Conduit Specifications

Although available in 10 different sizes, to match with the requirement of your telecom conduit project, our Direct Burial Standard Wall Conduit specifications for our most popular sizes (3/4in, 2in, and 6in) are as follows:

Size: 3 ⁄4in / 21mm
Wall: .066in / 1.7mm
Weight: .17lbs/ft / .25kg/m
Failure load: 5000 lbs/ft / 7,439kg/m
Impact: 25lbs/ft / 3.46kg/m
Field bending radius: 42ft / 13m
Moment of Inertia 0.024in⁴ / 1cm⁴

Size: 2in / 53mm
Wall: .070in / 1.8mm
Weight: .42lbs/ft / .63kg/m
Failure load: 3000lbs/ft / 4,463kg/m
Impact: 80lbs/ft / 11.07kg/m
Field bending radius: 68ft / 21m
Moment of Inertia: 0.337 in⁴ / 14cm⁴

Size: 4in / 103mm
Wall: .070in / 1.8mm
Weight: .82lbs/ft / 1.22 kg
Failure load: 2,000 lbs/ft / 2,976kg/m
Impact: 160lbs/ft / 22.14kg/m
Field bending radius: 132ft / 40m
Moment of Inertia: 2.390 in⁴ / 99.5cm⁴

Size: 6in / 155mm
Wall: .110in / 2.8mm
Weight: 1.89lbs/ft / 2.82kg
Failure load: 2,800 lbs/ft / 4,166 kg/m
Impact: 240lbs/ft / 33.21kg/m
Field bending radius: 190ft / 58m
Moment of Inertia: 11.948in⁴ / 478.6cm⁴

What About Encased Burial Projects?

The only difference between encased burial (EB) and direct burial (DB) products is the thinner wall thickness of EB products compared to DB. This difference in wall thickness can affect certain mechanical properties such as compression, but all other product characteristics are identical in the two products.

In normal circumstances, expansion fittings are not needed for EB installations, because the movement of the conduit coincides with the expansion and contraction of concrete. In DB situations, expansion fittings are not needed because the ground has relatively constant temperatures.

At FRE Composites, we have both Encased and Direct Burial products for application.

Why Choose FRE Below Ground Epoxy

FRE Composites has a complete line of Below Ground conduit products, ideal for telecommunication projects. Our range of Below Ground Fiberglass Conduit products - designed for either Direct Burial or Encased Burial - are used around the world by power and telecommunications utilities as an economical alternative to PVC, HDPE, RGB, and conduit.

We have been designing, developing and producing the best fiberglass products in the business since 1958. Our team has engineered conduit installations in North America, South America, the Far East, South East Asia, the Middle East and Africa, ensuring the most stringent industry requirements for safety are met.

Get in touch with us today to find the solution to your telecommunication conduit project.