Grounding
The safety earth path is established by the connection of the grounding conductor
within the AC power cord to a "reliably" earthed socket outlet located near the
equipment.
Grounding in an IT Power System
(e.g. Norway)
The safety earth path is established by connection of a green/yellow insulated
2
copper conductor (min. 1mm
) fitted between the chassis earth stud on the rear of
the unit near the earth symbol (see
on page 18) and a "reliable" earth point
FIGURE 1
located near the equipment. An AC socket outlet protected by a double pole double
throw circuit breaker may be required by national and/or local electrical authorities.
Note – Do not open the top access cover unless the system has been powered down
and all power cables have been removed.
To Attach the Wrist Strap
Caution – Wear an antistatic wrist strap and use an ESD-protected mat when
!
handling components. When servicing or removing system unit components, an ESD
Strap should be attached to the wrist, then to a dedicated stud on the chassis or the
power-supply (dependent upon procedure), and then the power connectors should
be removed from the system unit.
Following this caution equalizes all electrical potentials within the system unit.
Using a wrist strap with a 10mm press stud connection, attach the wrist strap to the
press stud either at the front (
on page 20) or the rear (
on page 21)
FIGURE 2
FIGURE 3
of the chassis. This should be performed before the top cover is removed.
Safety
19