Beijing Collation Technology Co., Ltd established in 1995 is a professional company integrated with production, selling and product service. There are three product departments in the company: EMC department, lightening protection department and power department. Professional level technicians with profound academic knowledge and rich practical experiences are responsible for developing and producing the product and controlling the quality.

EMC department is mainly responsible for product development of electric magnetic compatibility and production project consultation and implementation.
Service scope:

1 Product: different types of group pulse suppressor, power filter and shielding materials etc.;

2 Project consultation and implementation: electric magnetic compatibility project design and implementation of square storehouse and installation and design and establishment of electric magnetic compatibility test equipment.

3 EMC training: explain the items of use and maintenance of the test equipment and cautions of standard test methods, researchers and designers explain the cautions of EMC design and EMC training of printed board.

4 EMC transformation of product test: in order to be approved by EMC industry test standard, we analyze the report statistics of the equipment test in the lab and transform the product.

 

    

Design plan:

1. Independent test space should be constructed due to certain requirement of static electricity and electrical fast transient effects to the humidity and temperature. Regard to the limited space of the inside room, in order to reach the needed space, ventilation kitchen is suggested to be moved properly. Details see layout.

2 Steel metal floors is adopted in the rooms of the static electricity and electrical fast transient. (Material is galvanized steel plane with size 8.2m × 3m)

3 Metal floors is connected by galvanized steel plane with thickness 2mm. Firstly to level the ground by using the block board, then make the uppermost galvanized board with well electric capability by spreading steel plane of thickness 0.55mm.

4 In order to make the temperature and humidity reach the standard, equipment for humidity removing and enhancing and monitoring meters of temperature and humidity should be provided in the rooms of static electricity and electrical fast transient.

5 Each static electricity and electrical fast transient test station with the size 1.6 m× 0.8 m × 0.8 m (length × width ×height) thickness of 25mm, which is wood construction, metal needle should not be used on the station.

6 Each static electricity test horizontal coupling board and vertical coupling board (Size: horizontal coupling board 0.6 m×1.4m and vertical coupling board 0.5m×0.5m).

7 Earth position should be provided on the metal floor (its position should be made during construction).

8 Earthing wire design: in order to make the resistance of earth reach ≤2Ω, earth web should be established 50-80cm under the surface.
Earthing explanation:

1 Soil resistively is considered as P≤1000, ZGD-I-3 is used when calculation in order to make the earth resistance ≤2Ω. There are 21-22 earthing modules.

2 Earthing modules should be buried vertically.

3 Earthing modules should be connected parallel. Galvanized steel flat as joining line should be welded with core of earthing module.

4 Granular soil should be used for hole backfilling and backfilled by layers, it should backfill thickness 30cm every time and should be pressed by watering. Operate repeatedly till the surface is level.

5 Lastly measure the earthing resistance.

6 Earth network should be designed around the buildings, which should be 800mm above the network, its width should be no less than 500mm, earth resistance is ≤2Ω. Earthing steel fiber or 5mm×50mm×2500mm hot galvanized angle iron should be adopted for vertical earthing body. 4mm×40mm galvanized steel flat should be adopted for horizontal earthing body. Vertical earthing should be established at every 5 m with total 5 lines. Double-faced welding should be adopted for the horizontal earthing body and tower of it, welding width should be larger than 10cm, Red lead or bitumen should be painted on the weld point for the erosion protection. 4mm×40mm galvanized steel flat should be adopted for earthing wire, earthing test area should be established in advance. Standardized copper flat should be used for the joining points. Gas welding should be adopted for copper flat and steel flat connection, no less than 3 connection holes with 8mm diameter should be established in advance, related specification stainless steel screw or copper screw should be provided.

EMC complete technological consultation services:
Members

Level of member	Fee	Services
Basic member	4,000Yuan/Year (Product for the people) 6,000Yuan/Year (Military product)	1. Provide you freely the related the latest news of EMC home and abroad 2-3 times every year, seminars on standards and EMC technology, consultation and communications of related information of EMC test center. Fees for food and accommodation should be provided by you during the meeting. 2. Make the EMC transformation plan of the products, contact to arrange the test and provide the needed EMC materials for transformation according to the requirement of the clients. Fees for EMC test should be provided by you.
Intermediary member	8,000 Yuan/Year (Product for the people)  10,000 Yuan/Year (Military product)	1. Provide technological seminars and communications of well-known experts 1-2 times every year. Fees for food and accommodation should be provided by you during the meeting. 2. Make the EMC transformation plan of the products, contact to arrange the test and provide the needed EMC materials for transformation and provide freely the test according to the requirement of the clients (laboratory is appointed by us.
Senior member	15,000 Yuan/Year (Product for the people) 18,000 Yuan/Year (Military product)	1．Provide the EMC professional technological services including EMC design and guide during the product research and development, select the EMC materials, EMC test of sample product and the last approval and test according to the specific products of the clients. 2．We can provide preferential price for the EMC test fee    which should be provided by you.

2 Technological forces: EMC training staff is the professional experts of the industry and important state labs who also personally take part in product transformation to ensure the liability and wide range of the product transformation.

Related EMC standards involved in the services:
1.Civil products: GB9254-1998, GB13837-2003, GB17625.1-2003, GB12190-1990, SJ20524-1990, GB4824-1998, GB4343-1995, GB17626.1-.12 etc;
2. Military products: GJB151/152-1988, GJB151A/152A-1997, GJB870-1990, GJB97A-1994, HJB34-1990etc.

Industries and products involved in the services:
1. IT products: computer, server, power of switch, display, power adapter, printer, scanner and projector etc;

2. Products for broadcasting and TV: VCD/DVD, TV, radio, combined audio, power amplifier and active loudspeaker etc.

3. Financial products in the bank: fiscal cash register, cash counter, card reader.
4. Medical products of industrial science: electrocardiographic meter, numerical control machine tools
5. Measuring gauge: electronic scale, taxi price counter, oil adding machine, supervision and control meter etc
6. Communication products: communication equipments of different kinds of bases and relay stations.
Power products: relay protection, meter reader and distribution automation.