QSW-6300 Series Switches Hardware Installation and Reference Guide
Preparing for Installation
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2.
PREPARING FOR INSTALLATION
2.1. Safety Precautions
Note:
To avoid personal injury and equipment damage, please carefully read the safety
precautions before you install the QSW-6300 series.
The following safety precautions may not cover all possible dangers.
2.1.1. General Safety Precautions
Keep the chassis clean and dust-free.
Do not place the device in walking areas.
Do not wear loose clothes, ornaments, or any other things that may be hooked by the
chassis during the installation and maintenance.
Cut off all power supplies and unplug all power cords before dismantling the cabinet.
2.1.2. Handling Safety
Prevent the switch from being frequently handled.
Cut off all power supplies and unplug all power cords before moving or handling the
switch.
Keep balance and prevent personal injuries when handling the switch.
2.1.3. Electric Safety
Observe local regulations and specifications during electric operations. Only personnel
with relevant qualifications can perform such operations.
Check whether there are potential risks in the work area. For example, check whether
the power supply is grounded, whether the grounding is reliable, and whether the ground
is wet.
Learn about the position of the indoor emergency power switch before installation. Cut
off the power switch in case of accidents.
Do not maintain the switch that is powered-on alone.
Check the switch carefully before shutting down the power supply.
Do not place the switch in a wet position, and keep the chassis away from liquid.
Note:
Improper or incorrect electric operations may cause a fire, electric shock, and other
accidents, and lead to severe and fatal personal injury and device damage.
Direct or indirect touch on high voltage or mains power supply through wet objects may
cause fatal dangers.
If a power supply system is equipped with a leakage protector (also referred to as
"leakage current switch" or "leakage current breaker"), the rated leakage action current
of each leakage protector is greater than twice of the theoretical maximum leakage
current of all the power supplies in the system. For example, if a system is equipped
with eight identical power supplies, the leakage current of each power supply is equal
to or less than 3 mA, and the leakage current of the system totals 24 mA. A leakage
protector with 30 mA rated action current supports less than five power supplies (that is,
Action current of the leakage protector/2/Maximum leakage current of each power
supply = 30/2/3 = 5). In other words, the leakage protector with 30 mA rated action
