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You could refer to the following grounding requirement of IEC60598-1 and check it it will comply with it.
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* d/ E( N( Q2 h- g, t% s8 L1. The earth terminal connection shall be adequately locked against accidental loosening.' C$ ^5 y& W' z# M; ]
2. Self-tapping screws may be used to provide earth continuity and at least two screws are used.
- {% l' m5 w/ O3. Thread-forming screws may be used to provide earth continuity .4 x9 y, `! t2 B7 ` }
4. The screw or the other part of the earth terminal shall be made of brass or other non-rusting
7 Y0 |3 i( i R$ s! G) ? metal, and the contact surface shanll be bare metal.# N; ]2 v( [- d, T
5. It comply with the earth continuity test of 10A, 0.5Ohm |
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