Dear teachers, are there any standard requirements regarding the corrosion resistance grade?
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For example, under what circumstances are the W, WF1, and WF2 types of corrosion protection used, and which specification sets these requirements? How can such a level of corrosion resistance be achieved? Thank you!
Types W, WF1, and WF2 for corrosion protection; the corrosion resistance level of the lighting fixtures: in accordance with JB/T9536-1999 (Technical requirements for low-voltage electrical equipment in indoor and outdoor environments regarding corrosion protection). W-Outdoor, mild-corrosion resistant type ； WF1 – Outdoor, medium corrosion resistance type ； WF2 – Outdoor, highly corrosion-resistant type.
Okay, thank you. I’ll go check the specifications