NACE CIP Level 1 Practical Exam
NACE SP0188 - answer High and Low Voltage Holiday Testing
Low-Voltage Holiday Detector - answer -Ground is attached directly to substrate.
-Sponge saturated with a solution of tap water/wetting agent
-Proper mix ratio 1oz/USgal
-Proper of speed is 1ft/sec Double Stroke
-Used on Coatings up to 20mils
-may be used on concrete
Low Voltage Holiday Detectors Common Errors - answer -Failure to Keep probe in contact with surface
-Moving the electrode too fast or slow -Over or under saturating the sponge
-Low battery or bad lead/ground connection
Telegraphing - answer Can occur when surface is saturated with water and the Detector reads a different area.
High Voltage Holiday Detectors - answer -Can have an Output range from 800-
60,000v
-In General Voltage ratio 100v/1mil
-Electrode Rate of 1ft/sec with a single pass
-Ground connection must be made direct to metal substrate(preferred) or indirectly for pipeline in soil.
High Voltage Holiday Detector Pannel - answer -When determining the Voltage used, if not shown on dial use Voltage immediately below what's needed
-Remember the selection must be either High or Low and the corresponding number next to the Voltage.
SSPC-PA2 - answer Dry Film Thickness Gauge
SSPC-PA2 Type 1 - answer Magnetic Pull-Off DFT Gauge
-Dial-Type Magnetic Pull-Off DFT Gauge (Banana Gauge)
-Pencil Type Magnetic Pull-Off DFT Gauge
Dial TypeMagnetic Pull-Off DFT Gauge - answer -Known as "Banana Gauge"
-Intrinsically Safe
NACE SP0188 - answer High and Low Voltage Holiday Testing
Low-Voltage Holiday Detector - answer -Ground is attached directly to substrate.
-Sponge saturated with a solution of tap water/wetting agent
-Proper mix ratio 1oz/USgal
-Proper of speed is 1ft/sec Double Stroke
-Used on Coatings up to 20mils
-may be used on concrete
Low Voltage Holiday Detectors Common Errors - answer -Failure to Keep probe in contact with surface
-Moving the electrode too fast or slow -Over or under saturating the sponge
-Low battery or bad lead/ground connection
Telegraphing - answer Can occur when surface is saturated with water and the Detector reads a different area.
High Voltage Holiday Detectors - answer -Can have an Output range from 800-
60,000v
-In General Voltage ratio 100v/1mil
-Electrode Rate of 1ft/sec with a single pass
-Ground connection must be made direct to metal substrate(preferred) or indirectly for pipeline in soil.
High Voltage Holiday Detector Pannel - answer -When determining the Voltage used, if not shown on dial use Voltage immediately below what's needed
-Remember the selection must be either High or Low and the corresponding number next to the Voltage.
SSPC-PA2 - answer Dry Film Thickness Gauge
SSPC-PA2 Type 1 - answer Magnetic Pull-Off DFT Gauge
-Dial-Type Magnetic Pull-Off DFT Gauge (Banana Gauge)
-Pencil Type Magnetic Pull-Off DFT Gauge
Dial TypeMagnetic Pull-Off DFT Gauge - answer -Known as "Banana Gauge"
-Intrinsically Safe
