Power and grounding solutions for paperless conferencing systems

Source:YDIT 誉德 Release time:2019/6/2 11:51:55 Views:1003

 

1. Paperless conference system (ultra-thin integrated lifter, paperless office system) power supply requirements
(1) Large and important paperless conference system (ultra-thin integrated lifter, paperless office system) control room AC power supply should be powered by primary load, medium and small paperless conference system (ultra-thin integrated lifter, Paperless office system) The control room can be powered by a secondary load. When the voltage fluctuation exceeds the normal working range of the AC power equipment, the AC stabilized power supply equipment should be used. The noise interference voltage of the AC power supply should not exceed 100mV.
(2) In the conference room using mobile equipment, a dedicated electrical outlet should be installed near the camera, monitor, etc., and the same phase power supply should be used with the venue audio and video system equipment.
(3) Lighting of large and important conference rooms, power supply for audio and video system equipment at the venue, and uninterruptible power supply (UPS) shunt power supply should be adopted. The power supply of its air conditioning equipment should be powered by a dual-loop power supply.
(4) Large and medium-sized paperless conference system (ultra-thin integrated lifter, paperless office system) should be equipped with a dedicated distribution box. The capacity of each branch circuit in the distribution box should be determined according to the actual load, and pre- Leave a margin. The air conditioning system is not powered by it.
(5) The surge protector should be set according to the location and importance of the conference room. Because the location of the conference room in the building is often close to the exterior wall, or placed at the highest level of the building, it is vulnerable to lightning induction, resulting in equipment damage, so it is necessary to set up a surge protector. However, some conference rooms are located in the inner or basement of the building, and relatively less sensitive to lightning. Therefore, whether to install a surge protector should be considered according to the actual situation.
(6) In some buildings, there are multiple conference rooms, such as conference centers, which need centralized management from the management level. At this time, the dedicated distribution box of each conference room should provide a remote communication port, which is convenient for management personnel. The power supply situation of the venue is monitored in real time.
Paperless conference system (ultra-thin one lift, paperless office system)

2. Paperless conference system (ultra-thin integrated lifter, paperless office system) grounding requirements
(1) Metal casings, metal pipes, metal trunking, metal structures of buildings, etc. of all equipment in the control room or machine room shall be equipotentially connected and grounded. Protective grounding, working grounding and functional grounding should share a set of grounding devices. The grounding resistance should be determined by the minimum value.
(2) The grounding electronic paperless conference system (ultra-thin integrated lifter, paperless office system) should be grounded separately. It should be grounded at one point. The grounding resistance should not exceed 4 ohms.
(3) If there is special requirement for functional grounding, separate grounded electronic equipment shall be provided. The grounding wire shall be insulated from other grounding wires, and the grounding line and the power supply line shall be laid in the same path.
(4) The protective earth wire should meet the following requirements:
1 In the power supply system, the protection line (PE line) must be strictly separated from the neutral line (N line) of the AC power supply, and the neutral line unbalance current should be prevented against the paperless conference system (ultra-thin integrated lifter, no paper) The office system) has serious interference and impact.
2 The ground noise of the protective earth wire should not exceed 25mV.
(5) The control room should take anti-static measures. The anti-static grounding can be used in conjunction with the working ground of the system, but the grounding resistance should meet the minimum requirements.