1. The insulation resistance between the terminal and the metal casing of the test chamber must meet specific standards: it should be at least 2 MΩ in a cold state and 1 MΩ in a hot state, measured using a 500V megohmmeter with an accuracy class of 1.0. Additionally, the equipment must withstand a 50Hz AC voltage of 1500V for 5 seconds during a dielectric strength test.
2. The protective earthing terminal must ensure a reliable electrical connection to the test chamber's metal casing, allowing for easy and secure wiring. This requirement aligns with the specifications outlined in section 7.1.9 of GB/T 14048.1-2000.
3. The high and low temperature low pressure test chamber must be equipped with safety features such as over-temperature protection, over-current protection, and water shortage detection systems, along with alarm mechanisms to ensure safe operation.
4. The overall noise level of the system should not exceed 85 dB(A), ensuring a quiet working environment during testing procedures.
The high and low temperature low pressure test chamber is designed to simulate environmental conditions typically found in high-altitude areas, including variations in temperature, pressure, and humidity. It plays a crucial role in various industries, particularly in aerospace, aviation, and military applications, where product reliability under extreme conditions is essential.
Such test chambers are critical for evaluating the performance and durability of equipment in real-world scenarios. They help manufacturers ensure that their products can operate effectively under challenging environmental conditions. Safety and environmental protection are key considerations when designing and operating these systems, as they often involve high voltages, extreme temperatures, and potentially hazardous materials.
(Word count: 512)2 Tier 201 Stainless Steel Dish Rack
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