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power supply units and combinations thereof - Part 5: Particular requirements and tests for isolating transformers and power supply units incorporating isolating transformers for general applications (Chinese: 变压器、电抗器、电源装置及其组合的安全 第5部分：一般用途隔离变压器和内装隔离变压器的电源装置的特殊要求和试验)
GB/T 19088-2024_Chinese: Quality requirements for product of geographical indication - Jinhua ham (Chinese: 地理标志产品质量要求 金华火腿)
TN and IT systems (Chinese: 交流1000V和直流1500V及以下低压配电系统电气安全 防护措施的试验、测量或监控设备 第11部分：TT、TN和IT系统中剩余电流监视器（RCM）的有效性)
GB/T 12279
1 encoding rules - Part 1: Specification of Basic Encoding Rules(BER)
GB/T 20718.2-2025 English PDF (GB/T20718.2-2025) GB/T 15561-2024 power supply units and combinationsGB T 20718. 2 2025_Chinese: Road vehicles Connectors for the electrical connection of towing and towed vehicles (13 pole) Part 2: 13 pole connectors for vehicles with 12 V nominal supply voltage intended to cross water fords (Chinese: 13 2 12V13 ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20718. 2 2025
