big one 41-60 Flashcards
- What kind of circuit must the sump pump and lights in the elevator pit be connected to?
A separate branch circuit/ GFCI Line side
2011 Ammendment
Art 620 Elevators, dumbwaiters, Escalators,moving walks, platform lifts
620.24(A)
620.24 Branch Ckt for hoist way pit lighting and receptacles
(A) Separate Branch ckt.
A separate branch cut shall supply the hoist way pit lighting and receptacles.
Required lighting and/or sump pump shall not be connected to the load of a ground fault cut interrupter
- When using a grounding conductor it should not be smaller than # 14
Copper solid only
- Where Practicable a separation of at least _____ feet shall be maintained between communications wires and cables on buildings and lightning conductors
6 Feet
Art. 800 Communications Circuits
800.53 Lightning conductors
Where practicable, a separation of at least 6ft. shall be maintained b/w communications wires and cables on building and lightning conductors
- When using #12 THHN or THWN which are both rated for 90 degrees and when you look at the Table 300.15 what is the maximum OCP that can be used for general wiring
Tbl 310.15
30 Amp circuit Breaker or fuse
- When shall it be permitted to use track lighting with receptacles at each end in a public bathroom?
Not Allowed in bathrooms XV Lighting Track Art. 410 Luminaires, lamp holders and lamps 410.151(C) 410.151 Installation (C) Locations not permitted Lighting track shall not be installed in the following locations 1) Where likely to be subjected to physical damage 2) In wet or damp locations 3)Where subject to corrosive vapors 4) In storage battery rooms 5).......
Where a boathouse is using a ramp that is movable because of the water level changing with the tides. What wiring type of raceway would you use at the hinges?
Electrical Non Metallic Tubing(ENMT) Art. 555 Marinas and Boatyards 555.13(B)(5) 555.13 Wiring Methods (B) Installations (5) Protection Rigid or nonmetallic conduit suitable to protect wiring above decks or piers and landing stages and below the enclosure that serves it.
- What is not required to be marked on signaling wire or cable?
Circular Mil Area
Art. 310 Conductors for general wiring
310.11(B)(4)
310.11 Marking
(B) Required information
(4) Optional marking of wire size
All conductors and cables shall be marked to indicate the following applicable method in 310.11(B)
1) The max voltage
2) Poper type Letters for type wire specified
3) Manufactures name, trademark, or the distinctive marking by which organization responsible for the product can be really accessible
4)optional marking of AWG size or circular mil
- For roads, streets and other areas subject to truck traffic the minimum clearance of a 22 KV overhead line
is 18.5 ft
Art 225 outside branch cut feeders
225.60(A) Clearances over roadways, walkways, rail, water and open land
Table 225.60
Location
Open Land Subject to vehicles and cultivation – 18.5 ft
or grazing
- Mandatory rule of this code are those that identify actions the are specifically required or prohibited, use the term
Shall/Shall Not
Art 90 Introduction
90.5(A)
90.5 Mandatory rules, permissive rules, and explanatory rules
(A) Mandatory Rules
Mandatory rules of this code are those that identify actions that identify actions that are specifically required or prohibited and are characterized by the use of the terms SHALL or SHALL NOT
- What is not listed on a motor disconnect?
Laboratory Approval
- Power conductor on poles must have a separation of less than____ from communication conductors when the power is greater than 300 volts.
12 Inches
Art. 800 Communication System
- Fuses and circuit breakers shall be permitted to be connected in ____ where they are factory assembled in a parallel and listed unit.
Parallel
Art. 240 Overcurrent Protection
240.8 Fuses or circuit breakers in parallel.
Fuses and circuit breakers shall be permitted to be connected in parallel where they are factory assembled in parallel and listed as a unit. Individual fuses, circuit breakers, or combinations there of shall not otherwise
be connected in parallel.
- What is the maximum length of flexible metal conduit allowed in ducts or plenums used for environmental air that is physically connected to equipment and permitted to used in ducts or plenum chambers.
4 feet
Art 300 Wiring Methods
300.22(B)
300.22 Wiring in ducts, plenums, and other air handling spaces
(B) Ducts or Plenums used for environmental air.
Only wiring methods consisting of type MI cable, the MC cable employing a smooth corrugated impervious metal sheath without and overall non-metallic covering, electrical metallic tubing, flexible metallic tubing, intermediate metal conduit, or rigid metal conduit w/o an overall non- metallic covering shall be installed in ducts or plenums specifically fabricated to transport environmental air. Flexible metal conduit shall be permitted, in lengths not to exceed 4 feet to connect physically adjustable equipment and devices permitted to be in these ducts and plenum chambers.
- When are lights permitted to be installed in ducts or plenums used for environmental air?
Enclosed Gasketed-Type
Art 300 Wiring Methods
300.22 Wiring in ducts, plenums, and other air handling spaces
(B) Ducts or Plenums used for environmental air.
Where Equipment or devices are installed and illumination is necessary to facilitate maintenance and repair, enclosed Gasketed-Type Luminaires shall be permitted.
- Electrical Vehicle supply equipment locations, when the site is indoors, the coupling mean of the electric vehicle supply equipment shall be stored or located at a height of not less than ____ inches and not more than ___ feet above the floor level.
not less than 18 inches and not more than 4 feet above the floor level
Art 625 Electric vehicle charging system
625.9(B)
625.9 Indoor Sites
(B) Height
Unless specifically listed for the purpose and location, the coupling means of the electric vehicle supply equipment shall be stored or located at a height of not less than 18 inches and not more than 4 feet above the floor level.
