15kV Switchgear Creepage and Clearances
15kV Switchgear Creepage and Clearances
(OP)
When designing medium voltage switchgear (15kV), do any standards exsist in regard to minim creepage and clearance distances. Should these distances be a factor of envirionmental conditions, scheduled maintenance, etc. Does any one have any references on this subject.
Wirenut






RE: 15kV Switchgear Creepage and Clearances
One other source of problems are the bushings and stand-offs, which have differing ratings than 15 kV. 12 kV is a standard and I believe the next one is >20kV.
Hope this helps.
RE: 15kV Switchgear Creepage and Clearances
Wirenut
RE: 15kV Switchgear Creepage and Clearances
RE: 15kV Switchgear Creepage and Clearances
1. Contact UL standards or visit
http://www.ul.com/seminars/prodaudio.htm
2. IEC Standards
http://www.iecee.org/ctl/decisions.htm
http://www.iecee.org/ctl/sheet/sheet260.PDF
3.
http://www.phihongusa.com/html/spacing.html
4. Search military specifications at
http://astimage.daps.dla.mil/quicksearch
for mil specs and standards