Cathodic Corrosion Protection Install - FLEXIM

TS_Cath_Corr_Prot_Rev1.0 1 of 2 Technical Supplement for Measurement on Pipes with Cathodic Corrosion Protection Introduction During a measurement on a pipe with cathodic corrosion protection, there is a potential difference between the transducers and the transmitter. In order to avoid the detrimental effects, it is necessary to use a nonconductive cable gland supplied by FLEXIM. Use with Junction Box When mounting the junction box it is necessary that it is not subjected to the current of the cathodic protection. Connection of Extension Cable to the Junction Box The triax extension cable is to be inserted into the center gland of the junction box and terminated, making sure to establish the outer shield to the ground on the junction box. Connection of the Transducer Cable to the Junction Box You will be supplied a metal and plastic adaptor nut that is necessary to ensure electrical isolation between the transducers and the junction box housing (fig 1). Thread the metal nut onto the transducer cable (fig 2), then thread the plastic nut on the right most gland on the junction box (fig 3). With the plastic nut fixed to the junction box you can now connect the transducers and metal nut to the junction box via the plastic gland (fig 4). Note: At no time should the armored transducer cable be allowed to come in contact with the junction box. Use without Junction Box You will be supplied a metal and plastic adaptor nut that is necessary to ensure electrical isolation between the transducers and the meter housing (fig 1). Thread the metal nut onto the transducer cable (fig 2), then thread the plastic nut into the appropriate meter knockout, whether channel A or B (fig 5). With the plastic nut fixed to the meter you can now connect the transducers and metal nut to the meter via the plastic gland (fig 6). Note: At no time should the armored transducer cable be allowed to come in contact with the meter.

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Transcript of Cathodic Corrosion Protection Install - FLEXIM

Page 1: Cathodic Corrosion Protection Install - FLEXIM

TS_Cath_Corr_Prot_Rev1.0 1 of 2

Technical Supplement for Measurement on Pipes with Cathodic Corrosion Protection

Introduction During a measurement on a pipe with cathodic corrosion protection, there is a potential difference between the transducers and the transmitter. In order to avoid the detrimental effects, it is necessary to use a nonconductive cable gland supplied by FLEXIM. Use with Junction Box When mounting the junction box it is necessary that it is not subjected to the current of the cathodic protection. Connection of Extension Cable to the Junction Box The triax extension cable is to be inserted into the center gland of the junction box and terminated, making sure to establish the outer shield to the ground on the junction box. Connection of the Transducer Cable to the Junction Box You will be supplied a metal and plastic adaptor nut that is necessary to ensure electrical isolation between the transducers and the junction box housing (fig 1). Thread the metal nut onto the transducer cable (fig 2), then thread the plastic nut on the right most gland on the junction box (fig 3). With the plastic nut fixed to the junction box you can now connect the transducers and metal nut to the junction box via the plastic gland (fig 4). Note: At no time should the armored transducer cable be allowed to come in contact with the junction box. Use without Junction Box You will be supplied a metal and plastic adaptor nut that is necessary to ensure electrical isolation between the transducers and the meter housing (fig 1). Thread the metal nut onto the transducer cable (fig 2), then thread the plastic nut into the appropriate meter knockout, whether channel A or B (fig 5). With the plastic nut fixed to the meter you can now connect the transducers and metal nut to the meter via the plastic gland (fig 6). Note: At no time should the armored transducer cable be allowed to come in contact with the meter.