小米 发表于 2012-9-17 14:56

PDSH 853 Locking device for screws


http://decisions.iecee.org/icons/ecblank.gif PDSH 853

Locking device for screws
4.11.3
60598-1(ed.3);am1 & 60598-1(ed.4);am1 & 60598-1(ed.5) & 60598-1(ed.6);am1 & 60598-1(ed.7)


Standard(s):
IEC 60598-1 All editions
Subclause(s): 4.11.3
No. Year PDSH 0853 2010
Category: LITE Developed by: ETF5 OSM/LUM
Subject:
Locking device for screws
Key words:
- Locking device
- Mechanical connections
- Fixing screws
To be approved at the 49th CTL Plenary Meeting, in 2012
Question:
Screws which serve as electrical as well as mechanical connections shall be locked against loosening.
1) Is it acceptable if only one of two fixing screws of a ballast is provided with a locking devise?
2) Is it acceptable if the ballast is fixed with only one screw (provided with a locking device), while the
other side is fixed with tape?
Decision:
1) Yes.
2) Yes.


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