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Report No. 65335
13.3 - 13.4
Clearances and Creepage distances
P
Type of
Insulation
Position/
Location
Location
Position/
Location
Location
Working
Voltage
Clearance
13.3.2
Creepage dist.
13.4
Comm.
1 2
Up
Urms
Req.
Measu.
Req.
Measu.
Basic Live Neutral 326V
230V
2,0mm
3,6mm
2,5mm
3,6mm
1), 2)
Reinforce C903
Chassis
326V 230V 4,0mm 5,6mm 5,0mm >5,6mm 3)
Reinforce C904
Chassis
480V 300V 4,2mm 6,8mm 6,4mm 6,8mm 4)
Reinforce C904
Chassis
480V 300V 4,2mm 6,9mm 6,4mm >6,9mm 5)
Reinforce C933
C933
326V 230V 4,0mm 6,5mm 5,0mm 6,5mm 1)
Reinforce C930
C930
336V 195V 4,0mm 7,4mm 5,0mm 7,4mm 1)
Reinforce PC91, pin 1 PC91, pin 2 328V 199V 4,0mm 7,8mm 5,0mm 7,8mm 1)
Reinforce T901, Pin. 3 T901,Pin. 13 540V *) 271V *) 4,4mm
7,0mm
5,6mm
7,0mm
1), 6)
Note: U in Volt, Clearances/Creepage Distances in mm, Comm. = Comment
*) Measured highest working voltage for transformer, T901
Comments:
1) Measured on PCB.
2) Before mains fuse (F901).
3) Measured from C903 metal can (primary) body to metal chassis (top cover).
4) Measured from C904 primary pcb trace to near matal chassis (back cover).
5) Measured from C904 body (2N force applied) to near matal chassis (back cover).
6) Measured from T901 primary pin connected trace to secondary pin connected trace.
2) Before mains fuse (F901).
3) Measured from C903 metal can (primary) body to metal chassis (top cover).
4) Measured from C904 primary pcb trace to near matal chassis (back cover).
5) Measured from C904 body (2N force applied) to near matal chassis (back cover).
6) Measured from T901 primary pin connected trace to secondary pin connected trace.
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