CEP 6506GU, 6506G Operators Manual

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CEP 6506GU/G, 8706GU/G

Temporary branch power distribution unit

with Ground fault protection for personnel

Installation and Operating Instructions

SPECIFICATION These installation and operation instructions apply to the following temporary power branch distribution system components. Do not discard these instructions, save for future Reference.

PORATBLE POWER

DISTRIBUTION UNITS These units are rated for 50 amps, 125/250 VAC, Single Phase. The max. ampacity for the 50 amp unit is 100A @ 120V. The 20 amp, 120 volt outlets are individually protected by circuit breakers and GFCI circuit modules.

Model

Number

20 Amp

Receptacle

6506GU, 8706GU

U-Ground

6506G, 8706G

Twist-Lock

INTRODUCTION CEP temporary power distribution units equipped with GFCI products will protect you from electrocution hazards resulting from ground faults. Ground faults are current leaks and can result in electric shock. Currents of only 60/1000 of an ampere can be fatal. The GFCI protection provided by CEP temporary power distribution units significantly minimizes shock hazards. CEP temporary power distribution units,

which are UL listed as Class A, Group I interrupters, respond to fault currents as low as 3-6 milliamperes, and will shut of the current within 1/40th of a second. The temporary power distribution unit is designed to provide protection against electrical shock hazards due to line-toground faults. Although the GFCI Module does not eliminate the hazard of a shock, it does limit the duration of the shock to a period considered safe for normally healthy persons. GFCI Modules will provide protection against ground faults only. They will not protect against overloads or short circuits. There is no known device that will guard against the electrical shock hazard resulting from contact with both the “hot” and neutral wires of the electrical circuit. ELECTRICITY IS DANGEROUS. EVEN WHEN SAFETY DEVICES ARE PRESENT, HANDLE WITH CARE AND USE REASONABLE CAUTION.

LET CAUTION PREVAIL The CEP temporary power distribution unit is designed to be used on a grounded electrical supply system. It will not operate when supplied from a power source which is not grounded. Over-current protection of the proper rating, according to the National Electric Code, Article 240, must be used on the supply circuit feeding the temporary power distribution units.

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TEST PROCUDURE All Models Connect the temporary power distribution unit to an appropriate power source. CAUTION

Power is immediately available at the 50

amp outlet when the source is energized on all models.

1. Verify all circuit breakers are in the “on” position.

2. Push the test button on the individual GFCI module. The unit should trip.

3. Push the reset button. The indicator light should come on.

4. Repeat steps 2 & 3 for the remaining five (5) modules.

TROUBLE SHOOTING The GFCI Modules within the temporary power distribution unit will trip whenever one or more of the following abnormal conditions exist in the line (supply) side circuit:

1. Either line (hot) conductor is transposed with the neutral conductor.

2. Either line (hot) conductor is open (disconnected)

3. There is an excessive voltage imbalance between line 1 and line 2 circuits. This may be the result of an open neutral conductor in the supply circuit.

When the abnormal condition(s) in the supply circuit is corrected, the unit may be reset for normal use by completely removing and then reapplying line power. It is recommended that the GFCI test procedure be repeated at this time. When a GFCI module trips, attempt to reset it by pressing the reset switch, being careful to look for possible danger to personnel. If the module resets, the fault was momentary and has cleared. If it trips again immediately, the fault is still present and the GFCI module is performing its safety function. To locate the fault, disconnect all loads and again try pressing the reset switch. The module should reset. Reconnect the loads one at a time.

The module will trip when the faulted load is reconnected. Inspect all tools, appliances and extension cords in the faulted load circuit, repairing or replacing any that are not in good condition.

NOTE: Tripping of a circuit breaker in these models can only result from an overload or short circuit condition in its individual load circuit. When the fault in the load circuit is corrected or removed, the circuit breaker can be reset for normal use by switching handle to “OFF” position and then to the “ON” position.

NUISANCE TRIPPING All cables have some capacitive leakage. In a 120 volt system, there is a limited to the length of cable which can be run before sufficient leakage to ground will build up causing a GFI to trip. Individual 120 volt branch circuit load cords should be limited to 250 feet in length.

APPLICATION NOTES Enclosure is a NEMA Type 3R; enclosures are intended for use outdoors to protect the enclosed equipment against windblown dust and water and to provide for its operation when the enclosure is covered by external ice or sleet.

HIGH VOLTAGE LIGHT An illuminated high voltage light indicates the input wiring is incorrect; check the power source.

CONTACT MONITOR LIGHT The red monitor light is a welded contact indicator. If the monitor light is on with the unit tripped, it indicates the contact is welded, and the unit should be replaced immediately -- there is no GFCI protection. When the TEST button is pressed, both the POWER light and MONITOR light should go out, and come back on when the RESET button is pressed.

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MAINTENANCE & REPAIR

CAUTION: Electrical power supply MUST BE OFF AND DISCONNECTED before and during any repair or maintenance. Repair and maintenance must be performed by a trained and competent electrician.

WARNING: If any parts or components of this temporary distribution box appear to be missing, broken or show signs of damage, DISCONTINUE USE IMMEDIATLEY! Do not modify these devices in any way. Replace worn or damaged components. Failure to do so could cause serious personal injury or death.

PARTS LIST

DESCRIPTION

6506GU

6506G

20 AMP 125V RECEPTACLE

520R1

205R

20 AMP RECEPTACLE COVER

7421

7420

30 AMP 250V TWIST LOCK RECEPTACLE

306R

30 AMP RECEPTALCE COVER

7420

50 AMP 125/250V TWIST LOCK INLET

6375M

50 AMP 125/250V TWIST LOCK RECPT.

6369M

50 AMP RECEPTACLE COVER

7788

BOX LEG

LEGG

BOX LID

LID6G

GFCI MODULE

GF6095

20A/125V SANP CIRCUIT BREAKER

CB120NS

30A/250V SNAP CIRCUIT BREAKER

CB230NS

LEGG

306R

520R1/

205R

LID6G

GF6095

CB120NS CB230NS