How to choose a suitable Dalian mining fiber optic junction box for specific application scenarios?

How to choose a suitable Dalian mining fiber optic junction box for specific application scenarios?

The following is the method for selecting a suitable Dalian mining fiber optic junction box for specific application scenarios:

1、 Choose based on environmental factors

Temperature conditions

High temperature environment: If there are high-temperature areas in the mining site, such as near geothermal activity areas or some deep mining areas with high temperatures, junction boxes with a higher upper limit of working temperature should be selected, such as models with a working temperature range of -40 ℃ -+100 ℃, to ensure that performance degradation or damage will not occur at high temperatures.

Low temperature environment: In some high-altitude or cold mining areas, it is necessary to choose junction boxes that can work normally at lower temperatures, such as products that can operate stably at -50 ℃, to avoid problems such as material brittleness caused by low temperatures.

Humidity and waterproof requirements

High humidity areas: such as areas near abundant groundwater or areas with poor ventilation in mines that result in high humidity, priority should be given to selecting junction boxes with a protection level of IP68, which can ensure the reliability of internal fiber optic connections in long-term humidity or even immersion.

Possible flooded areas: If there are areas in the mine that are prone to water accumulation or have a risk of being flooded, it is necessary to choose junction boxes with good waterproof performance to ensure that they can still work normally under flooded conditions.

Dust and explosion prevention requirements

Areas with severe dust: In areas with high dust generation such as ore crushing and transportation, junction boxes with a protection level of IP6X (completely preventing dust from entering) should be selected to prevent dust from entering and affecting optical performance and causing safety hazards.

Explosive hazardous areas: For mining areas containing flammable and explosive gases such as gas, mining fiber optic junction boxes with explosion-proof certification should be selected, such as products that meet the coal mine explosion-proof standard Ex d I Mb, to ensure that they will not become sources of explosion in hazardous environments.

2、 Select based on fiber optic specifications

Fiber optic type

Single mode fiber: If the communication system of the mining site is mainly built on single-mode fiber, then choose a junction box specifically adapted to single-mode fiber (such as G.652, G.657 and other single-mode fiber types) to ensure low connection loss and stable performance with single-mode fiber.

Multimode fiber: For multimode fiber networks, such as those using 50/125 μ m or 62.5/125 μ m multimode fibers, choose a matching multimode fiber junction box to ensure optical signal transmission efficiency.

Hybrid fiber optic: If the mining site uses both single-mode and multi-mode fibers, a universal junction box that is compatible with multiple fiber types should be selected to improve the flexibility and scalability of the system.

Number of fiber cores

Known requirement: Select the junction box based on the expected number of fiber cores to be connected in the current mine communication plan. For example, if there is a clear 36 core fiber optic cable that needs to be connected, a junction box with 36 cores or a larger capacity (such as 48 cores) can be selected to meet potential expansion needs in the future.

Reserved expansion: If the communication business of the mining site may continue to develop, it is recommended to choose a junction box that can accommodate more fiber cores than the current demand, such as a junction box with 24 cores but 36 or 48 cores, to reserve space for future upgrades and new equipment.

3、 Select according to mechanical strength requirements

Stress resistance ability

Deep burial area: In the mining area of deep mines, due to the high formation pressure, it is necessary to choose junction boxes with high compressive strength, such as products that can withstand pressure of 15kN or more, to prevent damage from compression.

Areas prone to compression: In some transportation channels or densely installed equipment areas, there may be object collisions or compression of junction boxes. Models with compressive strength that can meet these scenarios should be selected.

Tensile strength

Long distance cabling: If fiber optic cabling needs to span a long distance or there is a high tension during the cabling process, it is necessary to choose a junction box with high tensile strength, such as a product with a tensile strength of 800N or above, to ensure that it will not be damaged due to tension during cabling and use.

4、 Select based on installation and maintenance requirements

Installation method

Wall mounted: With sufficient space on the mine wall, wall mounted junction boxes are easy to install and can save ground space. They are suitable for installation on the side walls of the passage and other locations.

Ground installation: For areas that require frequent maintenance or centralized management with other ground equipment, ground mounted junction boxes can be selected for easy inspection and maintenance by operators and maintenance personnel.

Aerial installation: When the space at the top of the mine is available, aerial installation can avoid the impact of ground equipment and personnel activities on the junction box, but its load-bearing and fixing methods need to be considered.

Maintain convenience

Easy to open design: Choose a junction box with a convenient lid opening and clear internal structure, such as a quick release or rotating lid design, which can be quickly opened during fiber optic connection, inspection, and troubleshooting, reducing maintenance time.

Scalable interface: Some Dalian junction boxes have expandable interfaces or modular designs, which can be easily operated when adding fiber optic connections or upgrading equipment, without the need to replace the entire junction box, reducing maintenance costs and workload.