Ruijie RG-WALL 1600-Z3200-S - Cleanliness Requirements

Hardware Installation and Reference Guide Preparing for Installation
9
If the device works in an environment with too high or too low temperature and humidity for a long period, it may
be damaged.
 If the relative humidity is too high, insulating materials may have poor insulation or even leak electricity.
 If the relative humidity is too low, insulating gaskets may shrink, which makes fastening screws loose.
 In a dry environment, internal circuits are prone to static electricity.
 A high temperature can accelerate the aging process of insulating materials, greatly reducing the reliability
of the device and severely affecting its service life.
Table 2-1 Temperature and Humidity Requirements
Item
Requirements
Temperature
Long-term operating temperature: 15°C to 30°C (59°F to 86°F)
Short-term operating temperature: 0°C to 45°C (32°F to 113°F)
Humidity
Long-term operating humidity: 40% to 65% RH (non-condensing)
Short-term operating humidity: 10% to 90% RH (non-condensing)
Note
 The operating temperature and humidity of the device are measured at the point that is 1.5 m (59.06 in.)
above the floor and 0.4 m (15.75 in.) before the device when there is no protective plate in front or on the
rear of the device.
 Short-term operating: The continuous operating period is no more than 48 hours or the total operating
period per year is no more than 15 days.
2.2.4 Cleanliness Requirements
Dust poses a major threat to device operating. In an indoor environment, dust may fall on the device and be
attached on the surface due to static electricity, causing poor contact of metallic joints. Such electrostatic
adhesion may occur more easily when the relative humidity is low, not only affecting the service life of the device,
but also causing communication faults. The following table describes the requirements on the dust content and
granularity in the equipment room.
Table 2-2 Requirements on Dust
Dust
Content (Particles/m
3
)
Dust particles (diameter ≥ 0.5 μm)
≤ 1.4 x 10
7
Dust particles (diameter ≥ 1 μm)
≤ 7 x 10
5
Dust particles (diameter ≥ 3 μm)
≤ 2.4 x 10
5
Dust particles (diameter ≥ 5 μm)
≤ 1.3 x 10
5
Apart from dust, the salt, acid, and sulfide in the air in the equipment room must meet strict requirements. These
harmful substances will accelerate metal corrosion and component aging. Therefore, the equipment room should