Black Box MT720A-35T Manual De Usuario
CHAPTER 3: Installation
25
3.5.3 P
OWER
C
ONNECTION
AC power should be supplied to the Fradswitch through the 5-foot (1.5-m) power cable terminated by a
standard 3-prong plug. Connect the cable between the AC mains connector on the Fradswitch’s rear panel
and a standard grounded AC outlet.
standard 3-prong plug. Connect the cable between the AC mains connector on the Fradswitch’s rear panel
and a standard grounded AC outlet.
WARNING!
Before switching on this instrument, the protective earth terminals of this instrument must
be connected to the protective ground conductor of the (mains) power cord. The mains
plug must be inserted only in a socket outlet provided with a protective earth contact. The
protective action must not be negated by use of an extension cord without a protective
conductor (grounding).
be connected to the protective ground conductor of the (mains) power cord. The mains
plug must be inserted only in a socket outlet provided with a protective earth contact. The
protective action must not be negated by use of an extension cord without a protective
conductor (grounding).
Make sure that only fuses with the required rated current, as marked on the Fradswitch’s
rear panel, are used for replacement. Never use repaired fuses or short-circuit fuse
holders.
rear panel, are used for replacement. Never use repaired fuses or short-circuit fuse
holders.
Whenever it is likely that the protection offered by fuses has been impaired, the instrument
must be made inoperative and be secured against any unintended operation.
must be made inoperative and be secured against any unintended operation.
3.5.4 G
ROUNDING
Any interruption of the protective (grounding) conductor (inside or outside the instrument)
or discon-necting the protective earth terminal can make this instrument dangerous. Intentional
interruption is prohibited.
or discon-necting the protective earth terminal can make this instrument dangerous. Intentional
interruption is prohibited.