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BABT Host-Independent Approvals
Checking
Creepage
Distances
You can check creepage distances by measuring the distance
between adjacent parts, as shown in Figure B–1, where:
X
Indicates the clearance distance, that is, the shortest
distance in air between two points.
Y
Indicates the creepage path between the same two points,
that is, the continuous path along the surface.
Figure B–1 Creepage Distance
Adjacent
part of
host
Soldered
Component
Soldered
Component
DSW21
Adapter
X
X
Y
Adjacent
Expansion
Card
MLO-008164
If in doubt, you should seek the advice of a telecommunications
safety engineer.
Warning:
Approval
Invalidated
Failure to install the DSW21 Synchronous Communications
Adapter in accordance with these instructions will invalidate the
approval.
DSW21 Synchronous Communications Adapter Installation Information for the United Kingdom B–7