Related Manuals for Clinton FL-20A
Summary of Contents for Clinton FL-20A
- Page 1 Model FL-20A Cable Fault Locator Instruction Manual Clinton Instrument Company 295 East Main Street Clinton, CT 06413 USA Telephone: 860.669.7548 Fax: 860.669.3825 www.clintoninstrument.com...
- Page 2 Rev J 11/19...
- Page 3 The operator simply con- Sample display screens nects the FL-20A test probes to each end of the cable under test, enters the cable length on the digital touch screen, and selects “Shorts” or “Opens” to begin the test. The unit The FL-20A Cable Fault Locator, a compact 15”W x 14”D...
- Page 4 (Ground Strap) Coaxial Cable Green Blue 295 East Main St. • Clinton, CT 06413 USA • Tel: 860.669.7548 • Fax: 860.669.3825 • www.clintoninstrument.com TITLE: ALL DIMENSION IN INCHES: Specifications subject to change without notice. 11/11 EN the clinton instrument company...
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Page 5: Table Of Contents
Installation ..........................4 Definitions ..........................7 FL-20A Controls ........................9 Settings Menu ........................11 Testing Large Cables with the FL-20A ................17 Performing a Shorts Test ..................... 18 Performing an Open Tests ....................20 Performing a Hi-Pot Test ....................22 Calibration .......................... - Page 7 Declaration of Conformity Manufacturer: ....The Clinton Instrument Company Address: ......295 East Main Street Clinton, CT USA 06413 Herewith declares that The Cable Fault Locator Type FL-20A is in conformity with the provisions of the following EEC directives: 89/236/EEC 73/23/EED Conforms with the emissions requirements of EN 61326-1:2006;...
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Page 9: Safety
A stored charge in the TEST PRODUCT can be lethal, even when the cable is no longer attached to the FL-20A. Please read and understand the manual prior to operating this equipment. A Warning to Supervisors! - Page 10 Risk of electric shock symbol. Earth (ground) symbol. Environmental Conditions The Model FL-20A Cable Fault Locator is designed to be safe under the following conditions: • Indoor use. • Altitude to 2000 m.
- Page 11 Model FL-20A Cable Fault Locator 40ºC. The Clinton Instrument Company certifies that this equipment met its published specifications at the time of shipment. Clinton further certi- fies that its calibration measurements are traceable to the United States National Institute of Standards and Technology to the extent allowed by the Institute’s calibration facility.
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Page 12: Installation
Unpacking The following items are included in the shipment: • FL-20A Cable Fault Locator, with a set of 3 test probes (red, blue and green) connected to the back of the unit • A green 2-position connector, to be used as a safety interlock if prod- ucts will be tested in a cage. - Page 13 Wiring Requirements Mount the X3F Light Tower Be sure the FL-20A is OFF. Mount the X3F to the right side of the FL-20A, using the 4 bolts provided. Locate the 10-pin green terminal block on the back of the X3F, the 4-pin terminal block on the back of the fault locator, and the 4-conductor cable supplied with the unit.
- Page 14 5. Printing occurs when the final test page (results page) appears on the FL-20A display screen, as shown in the picture to the left. Password Protection The FL-20A offers password protection that can prevent unauthorized individuals from defeating safety features and changing voltage settings and test parameters.
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Page 15: Definitions
Resistance is inversely proportional to the cross-sec- tional area of the conductor, so when the diameter of the conductor is doubled, the resistance declines 50 percent. FL-20A tests for metallic shorts are accurate on conductors with loop resistances of 50 milliohms or greater. - Page 16 Standard The test is considered good, with good results. Exceptional The fault location was easily located, and test results are accurate within 1% of the cable length. Page 8 - FL-20A Instruction Manual...
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Page 17: Fl-20A Controls
Wire to earth ground as directed in the Installation section. External safety interlock (for Caged Operation) If cables are to be tested in a caged area with the FL-20A located out- side, the FL-20A external safety interlock must be wired to the cage door so that cables may be tested only when the cage door is closed. - Page 18 X3F Light Tower When the X3F is properly installed, the red High Voltage light will go ON when high voltage is present on the FL-20A test probes. The yellow Test In Progress light will flash during a test. Warning: when the red High Voltage light on the X3F is illu- minated, do not touch the red and blue probes or the test cable, because a charge is present.
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Page 19: Settings Menu
FL-20A is off. To view or change test parameters, turn on the FL-20A power switch, which is located on the back of the unit. The FL-20A will take a few moments to boot up. Do not touch the screen until the Clinton logo appears. The main menu will appear. - Page 20 Model FL-20A Cable Fault Locator until the conductors are intentionally discharged. For this reason, an operator using the FL-20A in an open area is required to hold in the safety buttons on each side of the fault locator. This is a safety precaution to prevent him or her from touching the test cable while it is charged.
- Page 21 The FL-20A will retain this setting in memory, even when it is turned OFF. Printer Installed Turn ON this setting if a thermal printer is attached to the FL-20A. Automatic Printing When this setting is ON, it will force printing at the end of each test, rather than prompting the operator.
- Page 22 You may press BACK to terminate the test, but the test’s accuracy is, at this point, unknown. If you instead press NEXT, the FL-20A will then proceed to ind the distance of the short from the blue probe. A summary screen showing the short’s location from the red and blue probes, as well as the rated accuracy of the test and the suggested trim area, will display.
- Page 23 However, this is not recommended without the advice of a Clinton technician. Lock Test Frequency When this setting is ON, the FL-20A will not prompt the user to enter a test frequency before the Opens test. The default setting is ON. Opens Start Frequency This setting is found on Page 2 of the Opens Parameters menu.
- Page 24 This setting is found on page 2 of the Hi-Pot parameters menu. This is the time, in seconds, up to 60 seconds, that the FL-20A will take to per- form each Vstep to get to the preset maximum Hi-Pot voltage (Vmax (kV)).
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Page 25: Testing Large Cables With The Fl-20A
If conductors are too large to insert into the probes, special attention must be paid to insure that proper connections are made. Poor connec- tions can be dangerous to personnel. Additionally, the FL-20A graphics display may not function correctly due to excess electrical noise created by improper grounding. -
Page 26: Performing A Shorts Test
FL-20A. Discharge all conductors of the test cable prior to connecting to the FL-20A to remove any stored charge from a previous operation. A stored charge in the cable can be lethal. - Page 27 OFF, the screen will display, “Hold Safety Switches.” 10. Press the safety switches as directed. 11. The FL-20A touch screen will indicate test progress as it tries to locate the fault. The X3F yellow light will flash to alert that a test is in progress, and the red High Voltage light will go on, indicating that there is high voltage on the test cable.
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Page 28: Performing An Open Tests
FL-20A. Caution. Discharge all conductors of the test cable prior to connecting to the FL-20A Fault Locator to remove any stored charge from a previ- ous operation. A stored charge in the cable can be lethal. - Page 29 “Ground Probe Connected.” The X3F yellow light will flash to alert that a test is in progress, and the FL-20A touch screen will indicate that the test has begun. 8. If the Full Test setting is OFF, the first test result screen, indicating the fault distance from the blue probe, will appear.
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Page 30: Performing A Hi-Pot Test
FL-20A. Discharge all conductors of the test cable prior to connecting to the FL-20A to remove any stored charge from a previous operation. A stored charge in the cable can be lethal. - Page 31 Switches.” 10. Press the safety switches as directed. 11. The FL-20A touch screen will indicate test progress as it tries to locate the fault. The X3F yellow light will flash to alert that a test is in progress, and the red High Voltage light will go on, indicating that there is high voltage on the test cable.
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Page 32: Calibration
DC multimeter. 5. Connect the green ground probe to earth ground. Check that the ground connection on the rear of the FL-20A is secure and connected to earth ground. Press NEXT. 6. The red high voltage light on the X3A will illuminate, indi- cating that there is high voltage on the red and blue probes. - Page 33 .5kV to 20.0kV) and press OK. Record the voltage output on the multimeter. A number within 2% of the Voltage Reading is within factory tolerance. Repeat as necessary. 14. Press NEXT. The calibration is complete. Press FINISH. FL-20A Instruction Manual - Page 25...
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Page 34: Maintenance
A fuse is located in the ON/OFF power switch. To replace it, discon- nect the power cord from power. Use a flathead screwdriver to gain access to it, as seen in the pictures below. Page 26 - FL-20A Instruction Manual... -
Page 35: Cable Capacitance Chart
Model FL-20A Cable Fault Locator FL-20A Instruction Manual - Page 27... -
Page 36: Cable Loop Resistance Chart
Model FL-20A Cable Fault Locator Page 28 - FL-20A Instruction Manual... -
Page 37: Locating Shorts In Medium And High Voltage Cables
In general, if the cable fails hipot testing at a test voltage of 20 kVDC or 14 kVAC, or above, the FL-20A will not have enough test voltage to gener- ate the sustained arc necessary for shorts testing. - Page 38 Figure 2. Figure 2 The FL-20A will try to balance the resistance of Segment A to Segment B first using one resistance, (R1) but then the arc will move to another site (R2) with lower resistance. The unit will then try to balance these two segments.
- Page 39 This will reduce accuracy in fault location with the FL-20A. 17. When using the FL-20A on cables that failed hipot testing above 15.00 kVDC or 10.5 kVAC, regard the results as suspect unless the FL-20A reports “Standard”...
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Page 40: How To Use The 91785 Fl Test Box
The 91785 FL Test Box is used to simulate three types of cable faults (Open, Metallic Short and High Voltage Short). The FL Test Box is useful in determining if the FL-20A or FL-8A is operating properly. Note the metal terminals, two on the left and right sides and three in the center. - Page 41 8kV. We would expect a result where the fault is 90% (or within our margin of accuracy) from the blue side and 10% from the Red side. These two results should total approximately 100%. FL-20A Instruction Manual - Page 33...
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Page 42: Troubleshooting
When a test takes a very long time and the report screen says your accu- racy is low, you may have a multiple fault condition. The FL-20A will find the first fault so it can be cut out and the cable retested to locate a second short. -
Page 43: Replacement Parts
Fuse 2 amp 5x20 mm 91610 Transformer 20kV DC 115/230v 91609 Test Lead Assembly 10’ 91609-20 Test Lead Assembly 20’ Probe Clip Assembly (for connecting 92100 larger cables) Probe Clip Assembly (for connecting larg- 92113 est cables) FL-20A Instruction Manual - Page 35... -
Page 44: Optional Accessories
Model FL-20A Cable Fault Locator Optional Accessories Part Number Description GND-SP Ground Probe Assembly PRINTER THERMAL RECEIPT Thermal Printer 91901 Printer paper, roll Page 36 - FL-20A Instruction Manual... -
Page 45: Electric Shock Considerations For Electric Vehicle Charging Systems
The higher the DC current, the stronger the sensation when the current is started or interrupted. At frequencies of approximately 1 FL-20A Instruction Manual - Page 37... - Page 46 The magnitude of limb-to-limb current sufficient to cause ventricular fibrillation is greater than that which would cause muscle tetanization. Therefore, limits for continuous current (e.g., lasting over five seconds or so) are usually based on muscle tetanization considerations. Page 38 - FL-20A Instruction Manual...
- Page 47 A limit of 70 mA RMS, independent of frequency, has been used in a number of standards to address burns. At this current level, it is not likely that a severe burn injury would occur that would involve an appreciable volume of FL-20A Instruction Manual - Page 39...
- Page 48 Both insulations should not be vul- nerable to the same act (e.g., a drop on a hard surface or immersion in water) or deteriorating agent (e.g., high tem- perature or over-surface contamination). Page 40 - FL-20A Instruction Manual...
- Page 49 If the system contains more than one source of voltage that can be hazardous, a single GFCI may not be able to protect against electric shock. Both sources need to be con- sidered by the protection scheme. FL-20A Instruction Manual - Page 41...
- Page 50 The protective mechanisms that should be required may be different for each product design. In general, the system of protection against electric shock should consist of one or more of those mechanisms that will effectively Page 42 - FL-20A Instruction Manual...
- Page 51 If the new vehi- cle designs include the appropriate protection equipment to prevent potentially dangerous physiological effects, then electric vehicles will provide a modern, safe and environ- mentally friendly mode of transportation. FL-20A Instruction Manual - Page 43...
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Page 52: Warranty
The Clinton Instrument Company shall not be liable for errors con- tained herein or for incidental damages in connection with the furnish- ing, performance, or use of this material.
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