User's Manual

302UM0017 Rev 01 PD230 Enhanced Detector User Manual Page 36 of 37
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In the feeder cable how many twists per meter are there?____________ (should be more than 20 per metre)
Are there any other cables close to these feeder cables? (Yes/No) _____ If yes please give details:
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FEEDER CABLE and LOOP DETAILS
Channel 1 Channel 2
Is the loop and feeder cable one continuous Is the loop and feeder cable one continuous
piece of wire or is there a joint between the piece of wire or is there a joint between the
loops and the feeder? (Yes/No) _______ loops and the feeder? (Yes/No) _______
Please give details:__________________________________________________________________
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With the detector disconnected, measure the following:-
Channel 1 Channel 2
AC voltage between the two wires of the AC voltage between the two wires of the
feeder cable __________ V feeder cable __________ V
AC voltage between one of the feeder cable AC voltage between one of the feeder cable
wires and earth __________ V wires and earth __________ V
DC resistance of Feeder plus Loop: _______ ohms DC resistance of Feeder plus Loop: _______ ohms
Inductance of Feeder plus Loop: ________ µH Inductance of Feeder plus Loop: ______ µH
Frequency of measurement? ______ KHz Frequency of measurement? ______ KHz
Loop and feeder resistance to earth Loop and feeder resistance to earth
(with detector unplugged) using a (with detector unplugged) using a
500V Megger: _________ Mega Ohms 500V Megger: _________ Mega Ohms
(should be greater than 10 Mega Ohms) (should be greater than 10 Mega Ohms)