Low voltage DC powerThis article is automatically translated by google translate, just for reference.Chinese version PDF please CLICK HERE.
Part 3: Electromagnetic compatibility(EMC)
GB This section 21560 specifies the power level does not exceed 30 kW,an input AC or DC input voltage is not more than 660 V,the DC output voltage does not exceed 250 V power source of various means(PSU)of the electromagnetic compatibility(EMC)requirements.
Power supply means operate independently, or other devices installed in adequate electrical and mechanical protection are -
for some special industrial applications (e.g. chemical and metallurgical) power supply apparatus used, there may be other products EMC standards. At this time, perform this section may also perform those products EMC standards ^
many of the power supply apparatus is as relating to different EMC used part of a large apparatus standards, following a) and b)show power classification and EMC scope standards. A detailed breakdown of the power supply, see Appendix A.
- Expected power (a separate instrument)independent
- "Component supply be divided into two operation:
- the power supply member regarded as of the instrument
- "Is intended for professional assembly / installer component supply
Note:the power supply device member people end product, emission value Can be changed (e.g. due to changes in the ground conditions).
Purpose of this section is to define the power supply EMC and test methods for limits device,comprising one thousand possible interference to other electronic devices (e.g., a radio receiver, a measuring device and a computer apparatus) electromagnetic emission limits, and a continuous, transient conduction disturbance and radiated disturbances (including electrostatic discharge) immunity electromagnetic limits.
this part of the predetermined minimum power supply device EMC requirements.
comply with this section, no require additional EMC tests, nor beyond the portion of the necessary.