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Advanced Protection Switch Product Introduction
In the intricate world of railroad systems, safety is paramount. Ensuring the seamless movement of trains requires the strategic installation of protection switches at critical station junctions. These switches, with their intricate mechanisms, work harmoniously under specific conditions to guarantee safety. The absence of such protection mandates manual interventions, ensuring the switches are securely locked and in their designated positions. By harnessing sophisticated circuitry, these switches verify the precise alignment of turnouts, reinforce their lock-in protective stances, and activate the necessary signals. Depending on their intended use and protection level, protection turnouts can be categorized into several distinct scenarios:
In scenarios where a 6 ‰ downhill gradient is present at the inlet, or even lesser gradients pose significant braking challenges for trains, the initial group of turnouts is meticulously designed for protection purposes. These turnouts can be strategically adjusted to align with the safety line, specialized tracks, or refuge lines, ensuring maximum safety.
Continuing the downward 6 ‰ gradient to the approach terminal necessitates a protective strategy to prevent trains from overshooting at entry and inadvertently crossing outbound signals. In such instances, protective turnouts are adeptly positioned to direct trains safely to designated safety lines, dedicated routes, refuge paths, and beyond. This precision-driven fork is expertly controlled by advanced circuitry.
For scenarios featuring a 6 ‰ downhill gradient extending to the approach terminal, an additional layer of safety is provided by a leveling protection fork. Unlike its circuit-driven counterparts, this fork is manipulated manually. Even at a 6 ‰ gradient, the fork's position undergoes stringent checks, ensuring it aligns perfectly with the visual signal displays at the terminal's outer boundaries. This setup ensures that trains are on the right track, guided solely by visual cues and signals.
In areas with dedicated lines frequently engaged in bustling shunting operations, protective turnouts are strategically integrated. These are specifically designed to prevent shunting trains from inadvertently straying onto main station lines. By positioning these turnouts towards dedicated safety lines, shunting pull-out paths, or travel lines, operational safety and efficiency are significantly enhanced.
The design of protective turnouts in cross-ferry lines incorporates two groups of double-acting turnouts for mutual inspection and protection. When one group is in a reverse position, the other must remain securely positioned. This strategic arrangement prevents both groups from simultaneously entering a reverse configuration, effectively averting potential cross-ferry collisions. Additionally, during sidestroke processes, these safeguards act as buffers, mitigating sidestroke force and minimizing potential losses.
| Number | Model | Gauge(mm) | Frog No. | Curve | Radius(m) | Total Weight(kg) |
| 1 | DK612-2-3 | 600 |
No.2 | 3 | 400 | 311 |
| 2 | DK612-3-6 | No.3 | 6 | 6100 | 515 | |
| 3 | DK612-4-12 | No.3 | 12 | 6800 | 573 | |
| 4 | DK612-5-15 | No.5 | 15 | 7400 | ||
| 5 | DK615B-2-3 | No.2 | 3 | 4000 | ||
| 6 | DK615B-3-6 | No.3 | 6 | 6100 | ||
| 7 | DK615B-4-12 | No.4 | 12 | 6800 | ||
| 8 | DK615B-5-15 | No.5 | 15 | 7400 |
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