Temperature/Humidity; Cleanness - H3C S3610 Series Quick Start Manual

Quick Start
H3C S3610 Series Ethernet Switches
The rack or table/workbench has a good ventilation system.
The rack is sturdy enough to support the device and its
accessories.
The rack or table/workbench is well earthed.
To ensure normal operation and long service life of your VG,
install it in an environment that meets the requirements described in
the following subsections.

2.2.1 Temperature/Humidity

You must maintain a proper temperature and humidity in the
equipment room. Long-term high humidity may lead to bad insulation,
electricity leakage, mechanical property changes, and corrosion.
However, if the relative humidity is two low, captive screws may
become loose as the result of contraction of insulation washers and
static electricity may be produced in a dry environment to jeopardize
the CMOS circuits on the device. High temperature is the most
undesirable condition, because it accelerates aging of insulation
materials and can thus significantly lower reliability and service life of
your switch.

2.2.2 Cleanness

Dust is a hazard to the operating safety of your device. The dust
accumulated on the chassis can be adsorbed by static electricity and
result in poor contact of metal connectors or metal contact points. This
can not only shorten the service life of your device but also cause
communications failures. When the relative indoor humidity is low,
electrostatic adsorption is more likely to happen. The contents of the
dust must be limited as shown in the following table:
Chapter 2 Installation Preparation
2-2