High-legged secondary box: a reliable partner for construction electricity
As a key part of the construction power system, the high-legged secondary box is becoming the first choice for many engineering teams with its excellent performance and reliable quality.
1. Attributes and parameters
The high-legged secondary box is mainly made of galvanized steel sheet shell, which is strong and durable, and can effectively resist external collisions and erosion. Its structure is floor-standing, and the unique high design makes the box 1.5 meters above the ground, which meets the construction department's construction electricity specifications, which can not only avoid the impact of water accumulation and debris on the ground, but also facilitate daily inspection and maintenance. In terms of electrical parameters, it has a rated current of up to 630A and a short-circuit closing current of 630KA, which can cope with the complex and changeable power needs of construction sites.
2. Features and advantages
Safety protection in place:
The PE wire terminal board is electrically connected with the PE wire, and the metal box door and the box are connected with soft copper wire, forming a perfect grounding protection system, which greatly reduces the risk of electric shock. At the same time, the design of the inner and outer doors with the spraying process is not only beautiful, but also further enhances the protective performance to prevent dust and water vapor from entering the box and affecting the electrical components.
Strong applicability:
Whether it is a construction site, a field work site, or a temporary electricity demand site, the high-legged secondary box can adapt well. The rainproof box top design makes it fearless of wind and rain, and can operate stably outdoors for a long time.
Easy to install and move:
The floor-standing structure combined with reasonable size design eliminates the need for complex operation processes. During the construction process, if the position needs to be adjusted, it can also be moved relatively easily to flexibly meet the needs of different construction stages of electricity layout.
3. Functional characteristics and applications
Functional features:
It has perfect power distribution functions, which can realize the effective distribution and control of various electrical equipment on the construction site. It can form a complete three-level protection system for construction electricity, achieve the purpose of one machine, one gate and one protection, provide reliable power guarantee for each electrical equipment, and avoid safety accidents caused by overload, short circuit and other problems.
Application scenarios:
In construction sites, it can be used for power supply of large equipment such as tower cranes, construction elevators, concrete mixers, etc.; In temporary electricity scenarios such as field exploration and temporary exhibitions, it can also provide stable power supply for lighting equipment, power tools, etc., to ensure the smooth development of various work.
FAQ
Q: What are the requirements for the installation position of the high-legged secondary box?
A: Generally, it should be installed close to the transformer or distribution room. If the construction site is far away, it needs to be installed in the relatively central position of the electrical machinery on the construction site to facilitate the subsequent configuration of the subordinate distribution box.
Q: How much power load can the box withstand?
A: Its rated current is 630A, which can meet the load requirements of most common electrical equipment on construction sites, but it needs to be reasonably planned according to the power and operation of the actual electrical equipment.
Q: How to carry out routine maintenance?
A: Regularly check whether the box door is well sealed, whether the internal electrical components are loose or damaged, whether the grounding connection is firm, etc., and deal with any problems in time.
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