S N V 0 1 8 E C . X X
U S E R & I N S T A L L A T I O N M A N U A L
V 3 . 1
© SNV Engineering Ltd
10
Visually inspect the CMC SNV018EC before installing it, for any defect or damage.
Immediately notify the carrier if any damage is apparent.
CAUTION
Proper ESD handling procedures must always be used when packing, unpacking
or installing the card. Failure to do so may cause damage to the unit.
Card mounting and support
Current measurement channel and common terminals are to be connected with
M5 bolts through
5.5 holes on the card. Those holes can be used at the same
time for card mounting. There are also two additional holes at the plug connector
side only for mounting.
The card can be mounted using “mounting bars” (see ordering information and
drawings in ANNEX A). Alternatively, the card can be fixed using spacers. The card
can be also fixed through the common bar conductor and two spacers using the
two holes at the plug connector side. If “mounting bars” are not used it is
suggested to use “bolt holding bar” (see ordering information and drawings), in
order to be able to tide the nuts, or change a ring terminal, once the card
installed.
If other material is applied, than those supplied by SNV, the following
specifications should at least comply:
ensure following gap, defined as the distance between relevant plate, or
other element and the card routes, or components’ pins, or the highest
component mounted on the card, including any other conducting
element, like bolts, nuts, bar, cables and cable terminals fixed on the card.
>= 8mm gap from grounded plates
>= 15mm gap from non-grounded plates
ensure dielectric strength >3.5kV
ensure flammability rating better than 94V1.
ensure operating temperature range and aging strength depending
application specifications.
In any case, all bolts must be tide, to ensure the conductivity. Use star washers
between ring terminal or common bar and bolt head or nut. Do not apply star
washer directly on the card.
Содержание SNV018EC.XX
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