ⅠTerminal Box
1、Technical Performance of Terminal Box1.1 Box: Adopt the stainless steel plastic spraying, and the box is made of welded stainless steel plate by bending, combined with sophisticated design solutions and advanced digital processing technologies. The appearance of the entire box is artistic and its structure is durable.
1.2 Grounding
The bare live conductors inside the box are provided with certain protective measures. The non-conductive metal parts inside the box are electrically connected together and grounded reliably, as well as provided with the obvious grounding mark; in addition, the interior cabinet is assembled with the grounding copper bars and furnished with the inlet and outlet openings.
1.3 Electrical Clearance and Creepage Distance
The minimum distance between the two live conductors in the cabinet and between the live conductor and the bare charged conductor is in compliance with the provisions of DL/T720-2000.
2、Installation of Components
It adopts the Phoenix terminals, configured with the separator, number marked box and so forth. The terminals of current loop can be connected with the cable cores not less than 4mm2. The CT secondary circuit adopts the standard test terminal, easy to disconnect or short-connect the input and output circuit of the equipment. The terminal block is reserved with sufficient space to facilitate the connection of external cables.
The positive and negative terminals of the DC power supply are not arranged in the adjacent terminals.
The models and technical specifications of the temperature and humidity controllers, heaters, contactors, intermediate relays, small air switches and other devices are in compliance with the requirements of the drawings, and the components are installed in accordance with the provisions of DL/T720-2000.
Ⅱ Packaging & Transportation
When the product is packed, it should be placed on the base of the packing box and secured with bolts; the cabinet body should be covered with plastic film to prevent the dust or water vapor during transportation or storage; place of delivery, equipment name and shipping weight as well as other information should be clearly marked on the packing box; upon arrival, the goods should be unloaded with a forklift or crane; prior to unloading, the goods should be checked to confirm the goods is safe and free of damages or losses during transportation; it is recommended to transport the equipment to the installation site by means of the original package so as to prevent possible damage during transportation.Ⅲ Inspection & Acceptance
Upon receipt of the equipment, the user shall check it immediately.3.1 Check each item given in the packing list for compliance with actual articles in respect of quantity.
3.2 Check the product nameplate data for consistence with the order contract.
3.3 Check the factory documents for completeness.
3.4 Check the appearance of the product for bump or deformation and the interior electrical components and connections for any damage, loss and looseness.
3.5 The product should be safekept or repacked properly if it is not to be put into service immediately after unpacking inspection is completed.
Ⅳ Equipment Installation and Testing
4.1 Equipment Installation
The foundation, grounding system and cable duct should be prepared and incoming cables and outgoing cables and their protective pipes should be embedded before product installation. The product should be installed in accordance with relevant standards and specifications as well as the requirements of the equipment ventilation, cooling, installation and maintenance.
Transport the equipment to the installation site with a forklift, remove the bolts securing the base, take the equipment out of the box carefully, and prevent damages to the shell when removing the package;
This product can be installed in a dedicated foundation or concrete bench and should be placed horizontally. The product is secured onto the foundation with anchor bolts by passing through the bolt holes at the cabinet bottom. If the product is installed on the concrete foundation, it is recommended to adopt expansion bolts.
4.2 Inspection and Test before Putting into Operation
After the equipment is seated properly, open the front door of the cabinet, check the equipment and wiring in the cabinet, and note that all packaging materials must be removed from the box before power connection so as to avoid fire accident; check the insulators carefully for any damages, and contact the supplier immediately in case of damaged parts; check all electrical connection to confirm connection is secure and reliable; check whether all fixing bolts are tightened firmly.
Test before putting into operation: Measure insulation resistance; carry out power frequency voltage withstand test with the voltage not more than 85% of delivery test voltage in accordance with specified standards; remount the front panel and be ready for putting the equipment into service.
Ⅴ Product Maintenance
This equipment has high reliability and generally can be maintained without power cutoff. It is recommended to carry out inspection and maintenance strictly according to the safe operation procedure while the bus is being inspected and maintained with power cutoff.
Disconnect the equipment from the system;
Open the cabinet door and directly check the box inside for any abnormality;
Perform cleaning;
Confirm the insulation performance with a megger;
Check internal connection for reliability;
Check the bolts for tightness.
Baoding Integrity Electric CO., LTD
ADDRESS: Building 3, University Technology Park, No. 5699, North 2nd Ring, Baoding, Hebei Province, P. R. China
TEL: 0312-3917280/3917283
FAX: 0312-3917281
EMAIL: itrtdq@163.com
