TapFlo SB Series, Руководство Iom

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3. Installation
IOM manual - SB series 16
Requirements
These general requirements apply for electrical installation:
➢
The main voltage and frequency must comply with the specifications on the pump
nameplate.
➢
The fuses and circuit breakers must have the proper rating.
➢
Pump overload protection and short circuit (motor protection circuit breaker) must be
connected and set to the rated current according to the nameplate and, if applicable,
the extension cable specification. The starting current in DOL (Direct On Line) motor
start can be up to six times higher than the rated current.
➢
The fuse rating and the cables must be in accordance with the local rules and
regulations.
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If intermittent operation is prescribed, then the pump must be provided with
monitoring equipment supporting such operation.
3.6. Grounding
Electrical hazard:
➢
All electrical equipment have to be grounded. This applies to the pump equipment, the
driver, and any monitoring equipment. Test the ground lead to verify that it is
connected correctly.
➢
If the motor cable is jerked loose by mistake, the ground conductor should be the last
conductor to come loose from its terminal. Make sure that the ground conductor is
longer than the phase conductors. This applies to both ends of the motor cable.
➢
Risk of electrical shock or burn. You must connect an additional ground fault protection
device to the grounded connectors if persons are likely to come into physical contact
with the pump or pumped liquids.
WARNING:
➢
To prevent damaging the pump and causing current leakage, which may lead to
electrical shock, be sure to install the ground wire securely.
➢
To prevent electrical shock caused by improper grounding, do not connect the ground
wire to a gas pipe, water pipe, lightning rod, or telephone ground wire.
3.7. Cable connection
These are the requirements to follow when you install cables:
➢
The cables must be in good condition, not have any sharp bends, and not be pinched.
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The sheathing must not be damaged and must not have indentations or be embossed
(with markings, etc.) at the cable entry.
➢
The cable entry seal sleeve and washers must conform to the outside diameter of the
cable.
➢
The minimum bending radius must not be below the accepted value.
➢
If using a cable which has been used before, a short piece must be peeled off when
refitting it so that the cable entry seal sleeve does not close around the cable at the
same point again. Replace the cable if the outer cable sheath is damaged. Contact
Tapflo for service.
➢
The voltage drop in long cables must be taken into account. The drive unit's rated
voltage is the voltage measured at the cable connection point in the pump.