The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. Except for the following, this chapter of GB/T 19212.1-2016 applies. The following referenced documents have been added to this chapter: GB/T 19212.1-2016 Safety of Transformers, Reactors, Power Supply Devices and Their Combinations - Part I: General Requirements and Tests (IEC 61558-1:2009, MOD) GB/T 19212,17 Transformers, Reactors with Power Supply Voltages of 1100 V and Below Safety of power supply units and similar products - Part 17: Special requirements and tests for transformers used in switch mode power supply units and switch mode power supply units (GB/T 19212.17-2019, IEC61558-2-16:2013, MOD) IEC60417-DB 'Graphical symbols for use on equipment' Terms and definitions The following terms and definitions apply to this document. Except for the following, this chapter of GB/T 19212.1-2016 applies. The third paragraph of this chapter does not apply. Add the following terms and definitions to the transformer clause Separating transformer with high insulation level for independent use with output voltage not exceeding 1000 V AC or 1500 V DC but exceeding 50 V AC or DC. Note: Output windings with a working voltage exceeding 1000 V AC or 1500 V DC but not exceeding 15 000 V AC or DC are isolated from the input winding and housing. Separating transformer with output voltages exceeding 1000 V, separating transformer with output voltages exceeding 1 000 V. Separating transformer with output voltages exceeding 1 000 V for AC or 1500 V for DC but not exceeding 15 000 V for AC or DC
Function of testing report:
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1. Telephone communication and confirmation of requirements
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1. The testing industry is fully covered, meeting different testing needs
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4. Free initial testing, with no testing fees charged
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