Professional Cable Tray Manufacturer

The electric bridge is a kind of equipment used to support and protect the cable, which will produce holes because it needs to pass through the walls, floors and partition walls of the building during its installation. 
In order to ensure the structural safety and fire prevention performance of the building, these holes need to be blocked. 
The standard and method of sealing holes in cable tray refer to the standards and methods that need to be followed when plugging holes. 
The following will introduce in detail the cable tray elbow supplier hole plugging standards and plugging methods. 
Code for sealing holes in cable tray 1. Code for architectural design: determine the size, location and number of holes in cable tray according to the requirements of national codes and architectural design drawings. 
2. Fire safety code: hole plugging materials should meet the fire safety requirements to prevent the spread of fire. 
The commonly used fire grades are A1, A2 and B1. 
3. Structural safety code: hole plugging should ensure the structural safety of the building and do not affect the load-bearing and seismic performance of the building. 
4. Environmental protection specifications: hole plugging materials should meet the requirements of environmental protection and do not cause pollution to the environment. 
5. Sealing performance specification: after hole plugging, it should have good sealing performance to prevent the infiltration of water, gas and dust. 
Second, cable bridge hole plugging method 1, commonly used plugging materials (1) fireproof adhesive: fireproof adhesive is a kind of adhesive for fireproof plugging, which has good fireproof performance. 
Apply fireproof glue around the hole, so that the colloid is full of holes to form a plugging layer. 
(2) fireproof coating: fireproof coating is a kind of liquid material brushed around the hole, which has the functions of fire prevention, heat insulation and anti-corrosion. 
The fireproof coating is applied around the hole to form a fireproof layer. 
(3) Fire prevention partition: fire prevention partition is a kind of board used for fire prevention and plugging, which has high fire prevention performance. 
The fireproof partition is fixed around the hole to form a fireproof layer. 
2. Plugging methods (1) cleaning holes: before plugging the holes, the sundries around the holes need to be cleaned to ensure that the plugging materials can closely fit with the structure of the building. 
(2) selection of plugging material: according to the size and requirements of the hole, select the appropriate plugging material. 
Fireproof glue, fireproof paint and fireproof partition are commonly used plugging materials. 
(3) plugging holes: the selected plugging materials will be constructed in accordance with the requirements of the code. 
When using fireproof glue, you can use a scraper to fill the colloid into the hole and repair it. 
When using fireproof paint, you can use a brush or drum to brush the paint evenly around the hole. 
When using a fireproof partition, fix the partition around the hole. 
(4) testing and acceptance: after the plugging is completed, it is necessary to carry out testing and acceptance to ensure that the plugging effect meets the requirements of the specification. 
To sum up, the standards and methods for sealing holes in cable bridges are important links to ensure the structural safety and fire prevention performance of buildings. 
In the plugging process, it is necessary to follow the relevant norms and standards, select appropriate plugging materials, and carry out correct construction methods. 
Only by plugging the holes scientifically and normatively can the safe operation of the cable tray system be ensured.