Connecting The Drop Cable; Measuring The Insulation Resistance - Franklin Electric 13B72 12-00001C Manual De Instalación Y Funcionamiento

Connecting the Drop Cable

Risk of motor damage.
• Risk of motor damage due to damaged motor cable.
• Keep the motor cable away from sharp edges.
• Utilize the cable guard to protect the drop cable from damage.
Make sure that:
• The unit manufacturer's instructions regarding the cable connection have been observed.
• Only extension cable and insulating material used which are suitable for the specific use (specifically
drinking water) and which are approved for the temperatures occurring in the relevant medium.
• Cable cross-sections: The tables in the appendix only serve as recommended suggestions. The fitter is
responsible for the correct selection and dimensioning of the cable.
1. Lay the cable along the pump.
2. Connect the ground conductor correctly (motors or integrated ground conductors are prepared for
external grounding).
3. Protect the cable connection location against water penetration (shrink hoses, compounds or ready
cable sets).
4. Make sure that the short motor cable is always fully surrounded by transport medium for proper cool-
ing during operation.

Measuring the Insulation Resistance

This measurement is to be carried out using an insulation measuring unit (500 VDC, 1 min)
before and while submersing the fully assembled unit at the installation site.
1. Before submersing the unit, connect a measuring cable to the ground conductor.
2. Make sure that the contact points are clean.
3. Connect the other measuring cable to every core of the connected motor cable in succession.
4. The insulation resistance is shown on the insulation measuring unit.
Minimum insulation resistance (ambient temperature 20 °C) with extension cable:
New Motor:  4 M 
Used Motor:  1 M 
Minimum insulation resistance (ambient temperature 20 °C) without extension cable:
New Motor:  400 M 
Used Motor:  20 M 
PRODUCT INFORMATION
Connecting the Drop Cable
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