IR test for anode with cable for Cathodic protection

[Jed057]

Anyone help me,

whatis voltage level to check insulation resistance for anode with cable and earth for cathodic protection.,nomaly this anode for positive ptention from rectifier 50V.

Thank

 

[7anoter4]

If you intend to test the insulation resistance of the cable you have to be sure the anode end is dry and the connection box end disconnected and then for a rated cable of 600 V [HMWPE] minimum resistance measurer with a tester of 500 V could be 2 megohm .See for instance:

http://www.nexans.us/eservice/US-en... Voltage Cables in the Field - 2010-06-25.pdf

But you don't have to test the IR of the cable. In order to test the cathodic protection system see:

http://efotg.sc.egov.usda.gov//refe...Protection_Maintenance_Testing_pgs6-34g-k.pdf

The IR test on completed [new] cable in the manufacturer shop will be according to
ANSI/NEMA WC 70-2009/ICEA S-95-658-2009 ch.6.10.2 Insulation Resistance.