First, the commonly used cleaning methods and methods: 1 offline cleaning: according to the provisions of the procedures for the circuit board and unit pieces off the device, its all-round cleaning. By this method the most thorough cleaning, can reach a level of cleanliness; the 2 part: offline online cleaning of master and spare parts, according to the specific circumstances can be used for guiding method for offline cleaning, the remaining part of on-line cleaning; cleaning: 3 online user requirements, all with the method of on-line cleaning; cleaning agent to spray to the site, will reduce the cleanliness.
According to the different degree of pollution and the equipment structure is different, can use the following 1 methods: the first cleaning spray washing -- column spray cleaning: this method is suitable for thick dirt, first spray washing, let cleaner full infiltration of dirt, the dirt particles are insulated from each other, no longer suspended dust flying, the columnar spray washing method thoroughly clean; 2 top-down cleaning: cleaning method is suitable for mild pollution; 3 bottom cleaning: this method is suitable for cleaning of moderate and severe pollution situation, can avoid the accumulation of pollutants from top to bottom; 4 layer and bottom recovery method: this method is used for on-line cleaning process, anti insert electrostatic paper recycling in the machine frame of the cabinet and the cabinet bottom layer, each layer of pollutants will fall into the cleaning, finally removed; 5 slot cleaning method in equipment panel The gap in the 3 ~ 5mm, special spray gun with extension tube or hand-held spray pressure tank and fine extension tube into the circuit board, double side spray cleaning; cleaning method: 6 seamless seamless panel of equipment, can be extended from a special gun tube cabinet frame layer gap or from the rear of cabinet space proper enter the circuit board, double side spray washing.
Two, cleaning object safety monitoring: communication equipment room environment parameters are closely related to the important parameters of live cleaning. In the formulation of the cleaning solution, must the following parameters and condition of equipment and room for testing: A. room temperature and relative humidity using standard temperature and humidity meter test, according to the cleaning temperature range of on-line cleaning determine the parameters of the delta T, should meet the control standard of B. equipment; local maximum temperature by laser alignment infrared thermometer can to find out the maximum temperature and the local part of the equipment, so as to adjust the parameters of the cleaning temperature range T, and can be found at the site of the local temperature exceed the standard equipment before cleaning, to take the necessary measures; C. distribution using digital electrostatic electrostatic voltmeter, electrostatic distribution test equipment and surface environment, provide the basis for the dry cleaning process D.; surface impedance by the surface impedance analyzer, surface impedance test equipment and ground surface and room furniture, in order to determine the cleaning The pollution degree of the E. equipment is measured by sampling (circuit board) cleaning method and image contrast method. Based on the communication equipment comprehensive cleaning, not only can effectively eliminate the soft fault caused by "pollution", the heat dissipation capability of normal, helps to reduce the "obstacle rate \" and \ "BER \", \ "to improve the traffic connection rate \", also completed on fast and effective communication equipment "health maintenance", to make it work in the best condition, this is an effective means of communication equipment \ "with" in the bud.
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