Install and use
After the product arrives at the receiving place, first check whether the packaging is intact and undamaged. If any problem is found, the relevant department should be notified to find out the cause. For the product that is not installed immediately, it should be placed in an appropriate place according to the normal conditions of use.
1. The product installation should be carried out according to the installation diagram. The foundation channel steel and bolts should be prepared by the user. When the main busbar is installed, the lap surface should be repaired and leveled, cleaned and coated with neutral petroleum jelly or other measures, and then fixed with bolts.
2. The following items shall be inspected and tested before the product is put into operation after installation.
A Check whether the surface paint of the cabinet body is peeling off, and whether the cabinet is dry and clean
B. Whether the operating mechanism of electrical components is flexible, and there should be no jamming or excessive operating force
C. Whether the on-off of main electrical appliances is reliable and accurate, and whether the on-off of auxiliary contacts is reliable and accurate
D. Whether the indication of the instrument and the change and polarity of the transformer are correct
E. Whether the bus connection is good, whether the insulation support, installation parts and accessories are installed firmly and reliably
Whether the F auxiliary contact meets the requirements, whether the fuse core specification of the fuse is correct, whether the setting value of the relay meets the design requirements, and whether the action is accurate
Whether the contacts of the G circuit meet the requirements of the electrical schematic diagram
H whether the protection circuit system meets the requirements
I Use a 500V megohmmeter to measure the absolute resistance value not less than 1 megohm.
3. Precautions for use:
A This product is not installed against the wall, single-sided (front) operation, double-sided opening doors to repair low-voltage power distribution cabinets. Product maintenance channels and cabinet doors must be qualified professionals to enter or open for operation, inspection and maintenance.
B. Air circuit breaker, after many times of closing and opening, will cause local burns of the main contacts and produce carbon substances, which will increase the contact resistance. The air circuit breaker should be maintained and overhauled according to its operating instructions on a regular basis.