What materials are commonly used to make OPGW splice boxes?

OPGW splice boxes, or joint boxes, are typically made of materials that provide high durability, resistance to various environmental conditions, and excellent protection for the spliced fibers. Here are some commonly used materials:

Stainless Steel: This is often used due to its high strength, exceptional durability, and resistance to corrosion. Stainless steel can withstand harsh outdoor conditions, protecting the sensitive optical fibers within.

Aluminum: Some splice boxes are made of high-quality aluminum. It's light, robust, and resistant to corrosion, which makes it an ideal material for outdoor telecommunications equipment.

Plastic: In certain cases, high-grade industrial plastic might be used, often with additional weatherproofing and UV-resistant coatings. Plastics can provide excellent insulation and are lightweight.

Fiberglass: Fiberglass, specifically fiberglass-reinforced plastic (FRP), is also used because of its strength, durability, and insulation capabilities. It's resistant to rust, chemicals, and UV radiation, making it suitable for challenging environmental conditions.

Rubber Seals: Most splice boxes also incorporate rubber seals in their design. These provide a watertight seal to prevent the ingress of water and other contaminants.

All materials used for an OPGW splice box must offer high resistance to environmental stresses like temperature fluctuations and electromagnetic interference. The chosen material will often depend on the specific conditions and requirements of a given project.