Shenhai ба таркиш тобовар
Мувофиқи GB3836.1—2010 “Қисми атмосфераи тарканда 1: Талаботи умумӣ ба таҷҳизот,” тачхизоти электрикии аз таркиш тобовар барои кор дар мухити атмосфера пешбинй карда шудааст. Шароити маъмулии атмосфера иборат аст:
1. Диапазони фишори атмосфера аз 0.08 ба 0.11 МПа;
2. Ан оксиген concentration of 21% (аз рӯи ҳаҷм) дар ҳавои стандартӣ, with other inert gases like nitrogen constituting 79% (аз рӯи ҳаҷм);
3. An ambient ҳарорат between -20°C and 60°C.
The operational environment of electrical equipment is vital for its safety. Масалан, explosion-proof electrical devices are often specified to operate in temperatures between -20°C to 40°C. Lower atmospheric pressure, which implies thinner air, can adversely affect the cooling efficiency of electrical devices. Likewise, fluctuations in atmospheric temperature influence cooling performance, directly affecting the device’s operational efficiency.
When electrical equipment’s designed environment diverges from the actual atmospheric conditions, it’s crucial to adjust the parameters, particularly for high-power devices, to maintain safety standards.
The designated operational environment temperature, set during the design phase, outlines the permissible temperature range for the equipment’s operation. This environment temperature forms the foundation for all the equipment’s performance indicators. Discrepancies between the actual and designed environments can lead to underperformance or, дар ҳолатҳои вазнин, камбудиҳо. Specifically for тачхизоти электрикии аз таркиш тобовар, exceeding the prescribed temperature range could compromise the explosion-proof integrity of certain types.
Гайр аз ин, the air’s oxygen content significantly affects the safety of explosion-proof electrical devices. Operating equipment intended for тарканда components in an “oxygen-rich” setting may pose risks. Дар чунин мухитхо, the altered сӯзиш properties of flammable gases can challenge the normal function of equipment designed for standard conditions.