Install and 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.
