• Optical fibre closure is divided into two types: joint-box and Terminal Box, joint-box is used for protecting the connection between two optical fibre cables, while Terminal Box is used for cable terminal or to protect the connection between optical fibre and jumper.
• In according to environmental conditions, Optical fibre closure is divided into Closure for pole and Closure for tower; in according to the different shell material, it is divided into Plastic Closure and Metal Closure.

1. Plastic Closure is used for ADSS cable.

2.Compare with Plastic Closure, Metal Closure has many obvious advantages as mechanical strength, leak tightness and corrosion resistance. It's usually used for OPGW.

Optical fibre closure has some excellent performances, such as good sealing property, waterproof, moisture-resistant, and incorrodible after being installed on the electric power line.

• Cap-type Metal Closure On Pole

• Cap-type Metal Closure On Tower

• Installation sketch map of plastic closure

• Installation sketch map of metallic closure

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• Specification of Plastic Joint Box

Note:
N1-cable ports, no more than 6, N2-fibre number of cable.

• Specification of Metal Joint Box

Note:
N1-cable ports, no more than 6, N2-fibre number of cable.