I am a welder employed at a machining company, having joined the company over five years ago. My employment contract is set to expire on November 25, 2014. Earlier this month, the company informed me that due to a decline in welding-related work, they plan to terminate my contract by the end of March. I have been experiencing some health issues and requested that the company conduct an occupational health examination for me. However, the company refuses, claiming that since I had a medical check-up last May—less than a year ago—there's no need for another one now.
According to the "Catalogue of Classification of Occupational Hazard Causes" issued by the Ministry of Health, welding operations such as manual arc welding, gas shielded welding, argon arc welding, carbon arc gouging, and gas welding are classified as high-risk activities that may lead to pneumoconiosis in welders. Under the Occupational Disease Prevention Law, employers are legally required to arrange occupational health checks for employees engaged in hazardous jobs before, during, and after their employment. They must also truthfully inform workers of the results and bear the cost of these examinations. These health checks must be conducted by medical institutions approved by provincial-level health authorities.
In this case, the company did conduct a health check in May last year, which was a post-employment examination. However, since the company plans to terminate your contract soon, it is still legally obligated to perform a pre-termination occupational health check, regardless of when the last one was done. This is a legal requirement for all employers handling workers exposed to occupational hazards.
The Labor Contract Law further states that employers cannot terminate a labor contract without first conducting a pre-employment or pre-separation occupational health examination. If such an exam is not performed, the employer must notify the worker in writing 30 days in advance and either pay an additional month’s salary or allow the worker to continue working until the end of the notice period. Therefore, the company’s claim that no new examination is needed is incorrect.
You have the right to request an occupational health check from your employer. If they refuse, you can file a complaint with the local labor authority to seek legal recourse. It's important to protect your rights and ensure that your health is properly addressed before any final decision is made regarding your employment.
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Pumps And Other Fountain Equipment
Submersible Pumps​
Submersible pumps are the workhorses of many fountain systems, designed to operate while fully submerged in water. Their compact and sealed construction allows them to fit seamlessly into various fountain designs, from small tabletop features to larger garden installations. These pumps are efficient at circulating water, creating gentle flows or more dynamic sprays depending on the model. They often come with adjustable flow rates, enabling users to customize the water display to their liking. Submersible pumps are relatively easy to install and maintain, making them a popular choice for both residential and commercial fountains.​
Centrifugal Pumps​
Centrifugal pumps are commonly used in larger fountain projects where higher water flow and pressure are required. They work by using a rotating impeller to create centrifugal force, which pushes water through the pump and into the fountain system. Unlike submersible pumps, centrifugal pumps are typically installed outside the water source, connected via pipes. They are capable of moving large volumes of water, making them suitable for grand fountains in parks, plazas, or public spaces. These pumps are known for their durability and high performance, but they may require more complex installation and regular maintenance to ensure optimal operation.​
Fountain Nozzles​
Fountain nozzles are essential components that determine the shape and pattern of the water spray. There is a wide variety of nozzles available, each creating a unique effect. For example, jet nozzles produce a straight, powerful stream of water, while fan nozzles create a wide, flat spray resembling a fan. 雾化喷嘴 (Atomizing nozzles) can turn water into a fine mist, adding a mystical touch to the fountain. Some nozzles are designed to rotate, creating dynamic, ever-changing patterns. The choice of nozzle depends on the desired aesthetic of the fountain, as well as factors such as water pressure and flow rate.​
Lighting Systems​
Lighting systems play a crucial role in enhancing the visual appeal of fountains, especially during the evening and night. LED lights are the most commonly used type due to their energy efficiency, long lifespan, and ability to produce a wide range of colors. These lights can be submerged in water, safely illuminating the water sprays and creating stunning visual effects. Many fountain lighting systems come with color-changing capabilities, allowing users to set different moods and themes. They can be synchronized with the water patterns to create a coordinated audio-visual experience, making the fountain a focal point of any space.​
Control Panels​
Control panels are the brains behind the operation of more sophisticated fountain systems. They allow users to control various aspects of the fountain, such as water flow, spray patterns, lighting, and even timing. With a control panel, you can program the fountain to perform specific sequences at certain times, creating a dynamic and engaging display. Some advanced control panels can be operated remotely via a smartphone app, providing convenience and flexibility. They also help in monitoring the performance of the fountain components, alerting users to any issues that may arise, such as pump malfunctions or low water levels.
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