Appendix A Equipment Operation Environment Requirements
A.3 Equipment Room Cleanliness
The various types of dusts in the air that settles on equipment circuit cause electrostatic
incorporation, leading to poor contact between metallic joints or short circuit. This might
result in equipment fault and affects equipment life.
The ZXR10 T8000 requirements for equipment room cleanliness are shown in
Table A-3
.
Table A-3 Equipment Room Cleanliness Requirements
Dust
Unit
Quantity
Suspended Dust
mg/m
3
0.2
Fallen Dust
mmg/m
2
h
1.5
Sand
mg/m
3
30
Take the following measures to achieve equipment room cleanliness requirements:
l
The equipment room floor, wall, and ceiling should use dustproof material.
l
Use screen door/window. The outer windows of equipment room should be dustproof.
l
Clean the equipment room and equipment dust screen regularly.
l
Before entering the equipment room, wear shoe covers and antistatic suit.
l
Do not carry dirty or dusty objects and equipment into the equipment room. The
objects to be carried into the equipment room should be cleaned.
A.4 Anti-poisonous Gas
The intra-room equipment should be prevented from the corrosion of poisonous gas (such
as SO2, H2S, NH3, etc). The poisonous gas concentration requirements are shown in
Table A-4
.
Table A-4 Anti-poisonous Gas Requirements
Chemical Substance
Unit
Concentration Requirements
SO2 (Sulfur Dioxide)
mg/m
3
Average permitted value: 0.3; Maximum
permitted value: 1.0
H2S (Sulfureted Hydrogen)
mg/m
3
Average permitted value: 0.1; Maximum
permitted value: 0.5
NH3 (Ammonia)
mg/m
3
Average permitted value: 1.0; Maximum
permitted value: 3.0
Cl2 (Chlorine)
mg/m
3
Average permitted value: 0.1; Maximum
permitted value: 0.3
HCl (Ammonium Chloride)
mg/m
3
Average permitted value: 0.1; Maximum
permitted value: 0.5
HF (Ammonium Bifluoride)
mg/m
3
Average permitted value: 0.01; Maximum
permitted value: 0.03
A-3
SJ-20110901170352-005|2011-10-15 (R2.0)
ZTE Proprietary and Confidential
Содержание ZXR10 T8000 Series
Страница 58: ...Figures This page intentionally left blank ...
Страница 60: ...Tables This page intentionally left blank ...