In today’s digital age, building and data security is one of the crucial considerations for any organization or business. Firewall sleeves , as a key safety device, provide an effective solution for building fire prevention and waterproofing and cable management. The purpose of this article is to explain what a firewall bushing is, how it works, and its importance in terms of building and data security.
What is a firewall casing?
A firewall bushing, also known as a cable bushing or wall bushing, is a device used to maintain the integrity of a building’s firewall and manage the passage of cables through the building’s walls. It is made of materials with fire barrier properties, such as refractory materials or polymer composites. These bushings are usually installed in wall penetrations to allow the cables to pass through the fire isolation area of the building.
How firewall casing works:
The main purpose of the firewall bushing is to ensure that the integrity of the fire isolation system is not compromised when cables are traversed through the wall. They generally consist of two main components:
1. Outer shell: The outer shell of a firewall bushing is a durable layer that resists erosion and physical stress from the external environment. This layer is designed to protect the internal cables and provide additional protection against water and corrosion.
2. Internal sealing layer: The internal sealing layer of the firewall bushing is made of high temperature resistant material, which has the characteristics of preventing the spread of flame, smoke and poisonous gas. It can effectively reduce the spread of fire and provide a fire barrier function.
