TERMINOLOGY
WHAT WENT WRONG?
CURRENT LIMITING
OR
SUPPLEMENTAL
OR
SUPPLEMENTAL
NEC
100
AN ________ IS IDENTIFIED AS EITHER AN OVERLOAD CONDITION OR A SHORT CIRCUIT CONDITION.
WHAT IS AN OVERCURRENT?
100
THIS IS THE TYPE OF OVERCURRENT CONDITION THAT RESULTS IN THE CURRENT STAYING IN THE NORMAL CODUCTION PATH.
WHAT IS AN OVERLOAD CONDITION?
100
THIS CUTS OFF A FAULT CURRENT AT LESS THAN ONE HALF CYCLE.
WHAT IS A CURRENT LIMITING OCPD?
100
THIS IS THE MINIMUM SIZE CIRCUIT BREAKER FOR #10 AWG WIRE.
WHAT IS A 30 AMP BREAKER?
200
THIS CONDITION RESULTS IN AN EXCESSIVE CURRENT RELATIVE TO NORMAL OPERATING CURRENT, BUT ONE THAT IS CONFINED TO THE NORMAL PATH PROVIDED BY THE CONDUCTORS, CIRCUIT DEVICES, AND LOADS OF THE DISTRIBUTION SYSTEM.
WHAT IS AN OVERLOAD?
200
THIS CONDITION IS CREATED FROM A BOLTED OR AN ARCING CONDITION.
WHAT IS A SHORT CIRCUIT?
200
THIS CUTS OFF FAULT CURRENT FLOW FOR UP TO 1 1/2 CYCLES.
WHAT IS A NON CURRENT CARRYING OCPD?
200
WHAT IS NOT READILY ACCESSIBLE, WHAT IS NOT ACCESSIBLE (WIRING METHODS)
ARTICLE 314.29(A)
WHAT IS THE INTEGRITY OF THE BOX IS COMPROMISED BY SUBFLOOR SUPPORTS?
300
________ RESULTS IN FAULT CURRENT THAT FLOWS OUTSIDE THE NORMAL CONDUCTING PATH AT SOME POINT ON THE CIRCUIT.
WHAT IS A SHORT CIRCUIT CONDITION?
300
A TRANSFORMER PRIMARY WHEN ENERGIZED, ENERGIZING CAPACITORS AND STARTING A MOTOR CREATE THIS TYPE OF OVERLOAD WITH A TEMPORARY INRUSH OR SURGE CURRENT.
WHAT IS A HARMLESS OVERLOAD?
300
THIS TYPE IS FOUND IN LIGHT FIXTURES AND MOST MULTIMETERS.
WHAT IS SUPPLEMENTARY OCPD'S?
300
THIS IS WHERE YOU FIND THE MINIMUM DEPTH OF WORKING SPACE IN FRONT OF LIVE PARTS OR FROM THE ENCLOSURE (EX. PANEL)
WHAT IS TABLE 110.26?
400
THIS IS A TYPE OF SHORT CIRCUIT CONDITION IN WHICH AN UNINTENTIONAL CONNECTION IS MADE BETWEEN AN UNGROUNDED CONDUCTOR AND A NON-CURRENT CARRYING CONDUCTOR, METALLIC EQUIPMENT OR EARTH.
WHAT IS A GROUND FAULT?
400
WHAT IS A SHORT CIRCUIT CONDITION?
400
THIS OCPD GREATLY REDUCES DAMAGE TO EQUIPMENT AND HELPS PROTECT WORKERS FROM DEVASTATING ARC FLASH AND ARC BLAST INCIDENTS.
WHAT IS CURRENT LIMITING OCPD'S?
400
ARTICLE 110.12
WHAT IS A PROFESSIONAL AND SKILLFUL MANNER?
500
A DEVICE CAPABLE OF PROVIDING PROTECTION FOR SERVICE, FEEDER, BRANCH CIRCUITS AND EQUIPMENT OVER THE FULL RANGE OF OVERCURRENTS BETWEEN ITS RATED CURRENT AND ITS INTERRUPTING RATING.
WHAT IS A BRANCH CIRCUIT OVERCURRENT PROTECTIVE DEVICE?
500
EXPOSED PHASE CONDUCTORS THAT ARE TOO CLOSE TOGETHER HAVE A POTENTIAL FOR THIS.
WHAT IS AN ARCING FAULT?
500
DURING THE PERIOD OF TIME THIS OCPD IS CLOSED, THE CIRCUIT WIRING AND COMPONENTS CAN ENDURE TREMENDOUS AMOUNTS OF THERMAL AND MAGNETIC ENERGY.
WHAT IS NON-CURRENT LIMITING OCPD'S?
500
THIS IS THE MARKINGS ON BOXES THAT VERIFIES IT IS PROTECTED AGAINST CORROSIVE AGENTS.
WHAT IS 3X?
TABLE 110.28