# Week 5

Receptacles connectors and attachment plugs for showcases must be of a listed grounding type rated ______

15 or 20 amperes

Where appliances are unlikely to be used simultaneously each _____ or fraction thereof (of separate and continuous length) shall be considered one outlet of not less than 180 colt amperes.

5 ft

Where the grounding electrode conductor connects to a single or multiple rod pipe or plate electrodes or any combination Thereof and that conductor portion is the sole grounding electrode connection the maximum size required is _______

6 AWG copper or 4 AWG aluminum

In cord connected showcases the secondary circuits of each electric discharge lighting ballast is (are)

Limited to one showcase

Fractions of an ampere 0.5 and higher are ____ while fractions less than 0.5 are dropped

Rounded up

A recessed luminaire not identified for contact with insulation shall have all recessed parts spaced at least _____ from combustible materials

0.5 inches

In banks or office buildings th receptacle load shall be calculated to be the larger of (1) the calculated load from 220.14(I) or (2) ___ volt ampere per square foot

1

In determine the load of the highest rated motor the greater of either the ampere rating from 430.22(E) or the largest continuous-duty motor full load current multiplied by ____ shall be used in the summation

1.25

Three phase voltage is found by multiplying the voltage single phase by ______

1.732

Conductors ________ AWG and larger can be connected I parallel electrically joined at both ends to from a single conductor

1/0

____ receptacles are permitted on a 15 ampere overcurrent protective device

10

One of two methods for calculating show window branch circuit loads is to multiply each receptacle by ______

180

REceptavle outlets are calculated at a minimum of ____ volt amperes for each single or multiple receptacle on one yoke or strap

180

Receptacles are calculated at ___ per strap

180 volt-amperes

Heavy duty lighting track is identified for use exceeding ___ amperes

20

The volt-ampere unit load for a bank. Is _______

3.5

The ____ for the controlled lighting circuit shall be provided at the location where switches control lighting loads that are supplied by a grounded general purpose branch circuit

Grounded circuit conductor

A continuous load is defined as a load _______

Having a maximum level of current sustained for three hours or more

A 3 pahse 4 wire wye-connected power system supplying nonlinear loads may necessitate a design allowing for the possibility of ______ on the neutral conductor

High harmonic neutral currents

The feeder or service neutral load is the _______ of the load determined by Article 220

Maximum unbalance

______ applies to the wall placement provisions for commercial occupancies

No rule (the 6-ft provisions applies to dwelling units only

General purpose receptacles are ______

Not continuous loads

A ballast in a Fluorescent exit luminaire shall -------

Not have thermal protection

The load calculation form results (overcurrent protection and conductors) represent ___ requirement.

Only a minimum

In calculating general lighting load each floor's area shall be calculated using th buildings or areas _______

Outside dimensions

Branch circuits shall be rated in accordance with the maximum permitted ampere rating or setting of the _____

Overcurrent device

The supply circuit's calculated load for lighting units that have ballast or transfrmers is based on the ____not on the lamps' total wattage

The total ampere ratings of such units

The minimum number of branch circuit is determined from ___ load and the size or rating of the circuits used

The total computed

A load where the maxim current is expected to continue for ___ or more is a continuous load

Three hours

The disconnecting means for a sign in a commercial or industrial building must be ___ or outline lighting system that it controls

Within sight of the sign

Sign and outline lighting outlets in commercial buildings are computed at a minimum of ____ volt amperes

1200

Feeder conductors and overcurrent protection shall be sized at 100% of no continues loads plus ___% of continuous loads

125

For circuits supplying loads consisting of odor operated utilization equipment fastened in place with a motor larger than 1.8 hp in combination with other loads the total calculated load must be based on ____ % of the largest motor load plus the sum of the other loads

125

Where a branch circuit supplies continuous loads or any combination of continuous and noncontinuous loads the minimum brach ciruit conductor size shall have an allowable ampacity not less than th noncontinuous load plus ____ of the continuous load.

125%

GFCI protection for personnel is required in bathroom receptacles that are ______

125-volt single phase, 15-20- ampere

Show window branch circuit loads must be calculated either by (a) the unit load per outlet as required by other provisions of 220.14 or (b) at ____ colt amperes per linear foot

200

The demand factor for three pieces of equipment is 90% for four pieces ____% and for five pieces 70% for more than five pieces of equipment is 65%

80

When considering receptacle volt ampere rating a single piece of equipment (consisting of four or more receptacles must be calculated at not less than _____ volt amperes per receptacle

90

Lighting in hospitals hotels and motels is considered

A continuous load

The load calculation form provides ____

A estimate of the size required for the service or feeder

Individual moveable showcases can be connected by ______

Flexible cord to permanently installed receptacles

To calculate multiple non coincidental used in loads used simultaneously the ____ loads that will be used at one time is used in calculating the total feeder service load

Largest

Sign and outline lighting outlets must be calculated at a minimum of ____ per required branch circuit

1200 volt- amperes

Wall switch controlled lighting outlets are not required in commercial occupancies except for ____ containing equipment that requires servicing

Attic and underfloor spaces