Services

Service conductors are considered outside the building when installed in a conduit and encased with at least __________ in. of concrete or brick. Answer? What code section?

2 inches Article 230.6 (2)

Service conductors shall have a clearance of not less than __________ ft. from windows that are designed to be opened, doors porches, stairs, balconies, or similar locations. Answer? What code section?

3 feet Article 230.9 (A)

Overhead service conductors shall be permitted to pass above roofs where voltages between conductors does not exceed 300 volts and are installed at a height of 3 ft., where the roof has a slope of at least __________ in. by __________ in. Answer? What code section?

4 inches by 12 inches Article 230.24 (A)(Except. 2)

Overhead service conductors crossing public streets, alleys, roads, and parking areas subject to traffic shall have a clearance of __________ ft. from final grade. A. 10 B. 12 C. 15 D. 18 Answer? What code section?

D. 18 feet Article 230.24 (B)(4)

The service disconnecting means is not required to be located in a readily accessible location for all premises. True or False? What code section?

False Article 230.70 (A)(1)

Each overhead service conductor shall have overload protection True or False? What code section?

False Article 230.90

A minimum 100 amp service disconnecting means shall be installed for a single-family dwelling. True or False? What code section?

True Article 230.79 (C)

The overcurrent protection device shall be sized high enough to carry the locked-rotor current for a service supplying a fire pump. True or False? What code section?

True Article 230.90 (A)(Except. 4) Article 695.4 (B)(2)(a)

A copper grounded conductor shall be permitted to be ____________________ when used for an underground service conductors utilizing a cable assembly or installed in a raceway. Answer? What code section?

Uninsulated Article 230.41 (Except. 1) Article 230.30 (A)(Exception)

Overhead service conductors shall be permitted to be installed for overhanging roofs provided no more than __________ ft. of such conductors does not pass over more than __________ ft. of the roof. Answer? What code section?

6 feet 4 feet Article 230.24 (A)(Except. 3)

Service-drop conductors shall not be smaller than __________ No. copper or No. __________ aluminum. Answer? What code section?

8 AWG copper or 6 AWG aluminum Article 230.23 (B)

Other cables used for service conductors shall maintain a clearance of not less than __________ in. from the surface over which they pass. A. 2 B. 6 C. 10 D. 12 Answer? What code section?

A. 2 inches

A vertical clearance of __________ ft. shall be required for overhead service conductors above over roofs. At least a __________ ft. clearance shall be maintained in all directions from the edge of the roof. A. 8 and 3 B. 8 and 6 C. 10 and 3 D. 10 and 6 Answer? What code section?

A. 8 feet and 3 feet Article 230.24 (A)

The service head shall be listed for use in a ____________________. A. wet location B. damp location C. class 2 location D. NEMA 3R Answer? What code section?

A. wet location Article 230.54 (B)

To ensure against the interruption of power to fire pumps, an ____________________ shall be permitted to be installed. Answer? What code section?

Additional Article 230.2 (A)(1)

A minimum __________ amp, three-wire service disconnecting means shall be installed for a single family dwelling. A. 60 B. 100 C. 150 D. 200 Answer? What code section?

B. 100 amp Article 230.79 (C)

Overhead service conductors crossing residential property or driveways must have a clearance of __________ ft. from final grade. A. 10 B. 12 C. 15 D. 18 Answer? What code section?

B. 12 feet Article 230.24 (B)(2)

Overhead service conductors crossing residential property or driveways shall have a clearance of __________ ft. from final grade where the voltage exceeds 300 volts-to-ground. A. 10 B. 12 C. 15 D. 18 Answer? What code section?

C. 15 feet Article 230.24 (B)(3)

A reduction in clearance above only the overhanging portion of the roof to not less than __________ in. shall be permitted if two methods are met A.6 B. 12 C. 18 D. 24 Answer? What code section?

C. 18 inches Article 230.24 (A)(Except. 3)

No more than __________ switches or sets of circuit breakers mounted in a single enclosure, in a group of separate enclosures, or in or on a switchboard or in switchgear, shall be permitted to be installed for each set of service-entrance conductors. A. 2 B. 4 C. 6 D. 10 Answer? What code section?

C. 6 Article 230.71 (A)

Emergency lighting or power systems shall not permitted to be installed with a separate service. True or False? What code section?

False Article 230.2 (A)(2)

A building of different voltages shall not be permitted to be supplied with two or more service drops or underground laterals. True or False? What code section?

False Article 230.2 (D)

Service conductors operating over 1000 volts shall not be required to be provided with short—circuit protection device in each ungrounded (phase) conductor that it supplies. True or False? What code section?

False Article 230.208

Overhead service conductors crossing property where people have access must have a clearance of at least 12 ft. from final grade. True or False? What code section?

False Article 230.24 (B)(1)

Service conductors supplying a building or structure shall be permitted to pass through the interior of another building or structure. True or False? What code section?

False Article 230.3

Individual open conductors shall not be installed within 15 ft. of grade level or where exposed to physical damage. True or False? What code section?

False Article 230.50 (B)(2)

When installing a three-phase, four-wire, delta-connected service, where the midpoint of one phase winding is grounded, an outer finish marked yellow or identified by other effective means shall be used for the conductor with a higher voltage-to-ground. True or False? What code section?

False Article 230.56

The service point is the point of connection between the facilities of the serving utility and the premises wiring. True or False? What code section?

True Article 100

Where a raceway enters a building or structure from underground distribution system, it shall be sealed. True or False? What code section?

True Article 225.27

A high-voltage fuse shall not exceed three times the ampacity of the continuous rating of the conductor to be installed. True or False? What code section?

True Article 230.208

Service-drop conductors shall be permitted No. 12 hard-drawn copper where installed to serve small loads of only one branch-circuit, such as small polyphaser power loads. True or False? What code section?

True Article 230.23 (B)(Exception)

The minimum point of attachment of the overhead service conductors is 10 ft. from finished grade. True or False? What code section?

True Article 230.26

Only one set of service-entrance conductors shall be permitted to be supplied by a service-drop or service lateral. (General Rule) True or False? What code section?

True Article 230.40

Service equipment rated at 1000 volts or less shall be marked to identify as being suitable for use as service equipment. True or False? What code section?

True Article 230.66

When installing service-entrance conductors in a service raceway or service-entrance cable, no other conductors shall be installed. (General Rule) True or False? What code section?

True Article 230.7

Each service disconnecting means shall be permanently marked to identify it as a service disconnect. True or False? What code section?

True Article 230.70 (B)

The disconnecting means shall disconnect all ungrounded conductors from the premises wiring system simultaneously. True or False? What code section?

True Article 230.74