Cable Junction Box with Dual Opening Door Structure is supplied by Deyan Electric for medium-voltage cable branching and connection applications. Designed for power distribution networks, the equipment combines a compact enclosure with dual-opening access, helping installation personnel reach the cable connection area more conveniently. The published specification includes a rated voltage of 12kV and a rated current of 630A, while the enclosure protection rating is IP33.
In practical cable distribution projects, the available installation space and the accessibility of cable connection points can directly affect installation efficiency. A connection enclosure that is compact but difficult to access may create additional work when cables are connected or inspected. Deyan Electric's design addresses this point through a dual-opening door structure, clear cable arrangement, and compact length. The product description also identifies butt-welded sleeves as busbar connectors and states that the cable joints employed comply with DIN 47636 standards.
Access First
The dual-opening structure is one of the main physical characteristics of this equipment. Cable Junction Box with Dual Opening Door Structure provides access through two opening sections around the connection area, giving installation personnel more flexibility when working with cable connections. This arrangement can be useful when the surrounding cable layout or installation position makes access from one direction less convenient.
For installation teams, accessibility is not simply a matter of convenience. Cable connection work needs enough working space for positioning, connection, checking, and subsequent inspection. The dual-opening structure provides a more practical access arrangement while keeping the equipment compact.
Practical Cable Access
The product is designed for cable branching and connection, so the internal arrangement needs to remain clear enough for installation work. Deyan Electric highlights clear cable arrangement as one of the product characteristics. This design also helps avoid the need for large-span crossings of three-core cables.
The compact length is another useful consideration. Where distribution equipment has to be installed within a restricted area, reducing unnecessary space around the cable branching point can make the overall layout easier to organize.
Electrical Data
The published technical parameters provide the basic reference for evaluating whether the equipment matches the electrical requirements of a project. The following values are taken from the product information provided by Deyan Electric.
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Rated voltage
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12kV
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Rated current
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630A
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Dynamic Stability Current
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50kA/0.3s
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Thermal stability current
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20KA/3S
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1-minute power frequency withstand voltage
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42kV
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15-minute DC withstand voltage test
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52kV
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Lightning impulse withstand voltage
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105kV
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Enclosure Protection Rating
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IP33
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Structural Details
When selecting cable distribution equipment, engineers normally need to consider more than rated voltage and current. The enclosure structure, cable routing, installation conditions, environmental resistance, and maintenance requirements all influence whether the equipment is practical for the intended site.
1. Dual-opening access: The two-opening structure provides access to the cable connection area from different directions, helping installation personnel work with greater flexibility.
2. Compact length: The compact construction is intended for distribution layouts where installation space needs to be used efficiently.
3. Clear cable arrangement: The internal cable layout is designed to keep the branching and connection area more orderly.
4. High-impact resistance: The enclosure is described as having high-impact resistance, providing physical protection for the internal connection area.
5. Corrosion-resistant construction: The product information identifies corrosion resistance as part of the enclosure construction.
6. Weather resistance: Superior weather resistance is included among the listed product features.
These structural characteristics work together around the actual requirements of cable connection and distribution rather than focusing on a single feature in isolation.
Connection Method
The connection arrangement is another point that should be reviewed before selecting equipment for a cable distribution project. Deyan Electric's product information states that butt-welded sleeves are used as busbar connectors. The cable joints employed comply with DIN 47636 standards, while 630A bolted cable joints are typically employed.
Organized Branching
The purpose of the connection arrangement is to provide a defined location for cable branching and connection. The Cable Junction Box with Dual Opening Door Structure is designed around a clear cable arrangement and can eliminate the need for large-span crossings of three-core cables.
This can be particularly relevant when several cable routes have to be coordinated within a relatively compact distribution area. A more organized connection point makes the physical arrangement easier to understand during installation and subsequent inspection.
Application Sites
Deyan Electric lists several application environments for this equipment. The common requirement among these sites is the need for structured cable connection within a power distribution system.
● Compact secondary substations: The compact construction can be considered where cable distribution equipment needs to fit within a limited substation layout.
● Industrial and mining enterprises: The equipment can be used in small industrial and mining enterprises requiring cable branching and connection within their distribution systems.
● Wind power plants: Cable-based distribution arrangements in wind power projects can incorporate the equipment as part of the connection network.
● Commercial buildings: Hotels, shopping malls, office buildings, and commercial centers are among the application sites listed by the manufacturer.
The product can also be associated with several distribution configurations, including C- Load switch unit, D- Direct cable connection unit, De- Direct cable connection unit with grounding switch, F- Load switch-fuse combination unit, and V- Vacuum circuit breaker unit.
Installation Needs
Installation conditions can vary considerably between substations, industrial facilities, commercial buildings, and other distribution sites. The equipment therefore combines several practical characteristics intended to simplify installation and subsequent operation.
Quick and easy installation is listed as one of the product features. The dual-opening arrangement provides access around the cable connection area, while the compact structure helps reduce unnecessary occupation of the surrounding installation space.
For routine operation, Deyan Electric describes the unit as maintenance-free. The product is also described as having enhanced safety protection and superior weather resistance. These characteristics can reduce the amount of routine attention required around the enclosure during normal use.
From a project planning perspective, the most important step is still to compare the published electrical ratings and enclosure requirements with the complete distribution system before installation.
Manufacturer Support
Deyan Electric is a professional industrial electrical supplier with integrated R&D, production, and service. The company is located in Yueqing, Zhejiang Province, and its product range covers power distribution equipment and related electrical products. The company's published information identifies ISO9001 and CE certification and describes quality control and product testing as part of its manufacturing process.
The manufacturer provides product-related technical support for project communication. OEM service is available, and equipment can be designed according to customer size requirements. The published company information also states that professional installation manuals are available, providing practical documentation for equipment installation.
For initial procurement, the published MOQ is 1 piece, while samples are available with charge. The stated delivery period is 10–25 days depending on order quantity. Customers can therefore discuss sample requirements, technical specifications, and project quantities with the manufacturer before production.
FAQ
Q: Why does the equipment use two opening doors?
A: The dual-opening structure provides more flexible access to the cable connection area. This can make installation and inspection more convenient when the surrounding equipment or cable layout makes single-direction access difficult.
Q: What is the rated voltage of the equipment?
A: The published rated voltage is 12kV. The complete electrical system requirements should be reviewed before final equipment selection.
Q: What is the rated current?
A: The published rated current is 630A. The product description also states that 630A bolted cable joints are typically employed.
Q: What standard is specified for the cable joints?
A: Deyan Electric states that the cable joints employed comply with DIN 47636 standards. This provides a specific standard reference for technical evaluation of the connection arrangement.
Q: What types of sites can use the equipment?
A: The manufacturer lists compact secondary substations, small industrial and mining enterprises, wind power plants, hotels, shopping malls, office buildings, and commercial centers. Cable Junction Box with Dual Opening Door Structure is intended for cable branching and connection within these power distribution applications.
Q: Can the equipment be customized?
A: Yes. Deyan Electric states that OEM service is available and that equipment can be designed according to customer size requirements. Specific technical and dimensional requirements should be confirmed with the manufacturer before production.
