Cable trays are channels used to conduct and protect power cables, communication signal cables for building systems, apartment buildings and industrial zones. Products are made from aluminum alloy, black corrugated iron, ….All materials are solid, but there are still causes for damaged cable trays.
So what causes the cable tray to be damaged? Follow ‘s posts P69 mechanical Factory to know more!
What is a cable tray??
Cable trays are products widely covered in construction projects. This product is designed with cable trays, cable trays and cable ladders, the purpose is to build an internal path system containing electrical wires, traditional signal transmission lines or cables….
Causes of damaged cable trays
To help you better understand the causes of damaged cable trays, the P69 Mechanical Factory gives you the following reasons:
1. Paint, zinc coating is peeling off
-The first cause of the cable tray being damaged is the peeling paint and zinc coating due to the poor cleaning of the metal surface.
Normally, the cable tray before surface treatment will have to be cleaned by polishing and smoothing so that the paint and zinc coating adhere better. If not cleaned, after only a short time, the cable tray will gradually “scab” and rust.
a. How to fix
After cleaning the product, the cable tray is surface treated by 3 methods: powder coating, electro-galvanizing, hot-dip galvanizing to ensure durability.
– Powder coated cable tray: Widely used and most popular today with high aesthetics, explosion resistance, good corrosion resistance.
– Electro-galvanized cable tray: Cable tray is covered with an outer layer of zinc, with a thickness of 15-20 micrometers, this zinc coating has high adhesion enough for the material to be resistant to the effects of the environment, preventing oxidation. chemical…
– Hot dipped galvanized cable tray: The plating layer is durable, difficult to peel off, the coating thickness is up to 50 micrometers, can be used in harsh environments, high salt levels, industrial gases, etc.
– In addition, there is also a zinc tole cable tray: The feature is that there is no need for surface treatment and the processing time is quick and convenient.
2. Manufacturing materials are not up to quality standards
Cable Trays are usually made of materials: zinc corrugated iron, steel plate, zam corrugated iron or stainless steel. If the input of these materials is not carefully checked, it is possible that the production unit will encounter materials of insufficient quality for production. This will easily cause rust or damage to the cable tray.
3. The number of conductors is too large
When the number of conductors is too large, relatively high heat will be generated during the working process. Therefore, when placing too many conductors, the cable tray system will not be able to withstand the excessive heat generated. They will impede the air flow in the cable tray. This can lead to damage to the wiring and cable trays in the long run.
According to the standards set forth to ensure safety, the cable tray should only contain 40 – 50% of the tray’s physical load. Only in this way can the absolute safety of the electrical system be ensured. In addition, it is necessary to properly install the grounding cable tray, check carefully before inserting the wire inside.
4. Choosing the wrong type of cable tray
Many investors do not learn about the types of cable trays before installing to use, leading to the wrong choice, which is not suitable for the operating environment.
For example, if the cable tray must be installed outdoors, subject to many environmental impacts, but the investor chooses a powder-coated cable tray, the cable tray will be damaged and rusted very quickly.
Accordingly, there are currently 3 types of cable trays for different environments:
– Powder-coated cable tray: For indoor use
– Electro-galvanized cable tray: Use indoors and in places less affected by the environment
– Hot-dipped galvanized cable tray: Use outdoors, marine environments or places subject to many environmental influences
Therefore, it is necessary to have a suitable choice to optimize the cost of the works as well as ensure the durability of the cable tray system.
5. Construction is uncertain
Many technicians are poorly qualified, allowing the number of power cables to exceed the recommended load capacity of the cable tray. Bearing too much load for a long time causes the cable tray to become weaker and weaker. After a long time, the cable tray systems will be broken, falling, causing the whole system to stall.
In addition to the above reasons, it is necessary to regularly check and maintain the cable tray and wire ladder system to promptly detect problems and increase efficiency. Some materials, such as flexible wire, may not be suitable because their insulation easily becomes brittle over time, increasing the risk of fire and short circuit. Unqualified conductors should be removed immediately to prevent these problems from occurring. When designing, it is also necessary to calculate the additional conductors during use, to avoid overloading the electrical cable tray system.
Place to buy reliable products
P69 Mechanical Factory is proud to be the number 1 unit in the market providing mechanical processing products in general and ventilation pipes in particular.
Here, we own a team of designers, technicians, and experienced workers. Thoroughly trained and highly skilled.
The system of equipment, machinery and technology is invested in the most modern and advanced. Commit 100% product quality, guarantee genuine products.
Customers can directly inspect products before importing goods. Refund if found counterfeit goods.
Various models, designs and product categories to meet the diverse needs of customers. Professional transportation and installation support.
The most competitive quote in the market.
So what are you waiting for, hurry up and contact us for a consultation
Contact information P69 Mechanical Factory
Address: Km 18, Thang Long Boulevard, Thach That Quoc Oai Industrial Area, Hanoi
Headquarters: No. 06/165C, Xuan Thuy, Cau Giay, Hanoi
Telephone: 09666 86 969
Hotline: 0989 188 982
Email: kd1@cokhip69.com.vn
Linkdin: https://www.linkedin.com/in/nhamaycokhip69/
Website: https://cokhip69.com.vn/
Youtube: https://www.youtube.com/channel/UCfvFIhhuJ4ANAO0glUPSTAg/ab
