Elcometer 266 Manual Del Usuario página 38

APPENDIX A: STANDARDS (continued)
Standard or
Method Date
Number
JIS G-3492 1993
NACE SP0188 2006
NACE RP0274 1974
NACE SP0490 2007
Note: The above list and comments have been extracted from the documents identied and
every effort has been made to ensure that the content is correct. No responsibility
can be accepted, however, for the accuracy of the information as these documents
are updated, corrected and amended regularly. A copy of the relevant standard or
method must be obtained from the source to ensure that it is the current document.
†
Elcometer 266 Voltage Setting: VC = Voltage Calculator; M = Manual
en-37
R
Title
Coal-tar enamel coatings
on water line pipes
Discontinuity (Holiday)
Testing of new Protective
Coatings on Conductive
Substrates
High Voltage Electrical
Inspection of Pipeline
Coatings prior to
installation
Holiday Detection of
Fusion-Bonded Epoxy
External Pipeline Coatings
of 10-30mils
(0.25 - 0.76mm)
Notes
Inside walls: 8-10 kV
Dipped coatings: 6-7 kV
Outside walls: 10-12 kV
Welded areas as inside
walls
Low and high voltage
equipment and tests.
DC or Pulsed test voltage
.
V = 1250 Thickness (mil)
DC in dry conditions
.
V = 525 Thickness (mil)
Trailing ground lead of 9m
allowed if pipe is connected
to 2-3ft earth spike and soil
is not dry
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Voltage
†
Setting
M
VC, M
VC, M
VC, M