＞
0.5m
7. When electric pump is immersed in the water, the depth shall not exceed 5m, and it
shall be more than 0.5m from the water bottom. Electric pump shall not immerse into mud,
and the impeller shall be prevented from being blocked or jammed by water plants or
debris, resulting in that electric pump cannot work normally; the fall of water level should be
checked frequently during operation so as not to let electric pump work out of water
surface.
8. When electric pump is running, the safety warning sign of “Shock hazard, no man or
animal shall enter” shall be arranged at the work site to avoid accidents.
The immersion
depth is no more
than 5m
Electric pump shall
not be out of water
surface
Electric pump shall not be
immersed in mud to prevent
impeller from being blocked
or jammed by water plants
9. For single-phase electric pumps with built-in automatic reset type thermal protector,
after the protector acts, it can reset automatically when the temperature rise of motor
lowers to a certain value, and in case of frequent action of protection, the power shall be cut
off for troubleshooting prior to further use.
For three-phase electric pumps with power-off reset type thermal protector, after the
protector acts, the power must be cut off for 10min, and then the electric pump can run
normally; in case of frequent action of protection, the power shall be cut off for
troubleshooting prior to further use.
Shock hazard, no
man or animal
shall enter
