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What is the clearance requirement of the point of attachment to the weatherhead?
Within 24"
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Additional services may be provided by the company for what condition
- -Optional standby systems
- -Capacity Requirements
- -Parallel power production systems
- -Emergency lighting
-
Is the point of attachment installed and maintained by the customer.
Yes
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Within _____ inches of the weatherhead shall the point of attachment be located?
24"
-
What vertical clearance is required over driveways, parking lots, and alleys?
16 feet
-
What are the required size and material of Slip Sleeves?
- 18” length 2 ½” Dia. Schedule 40 PVC
- or
- 18” length 3” Dia. Schedule 80 PVC
-
What is the maximum length for an overhead service drop to a temporary service?
70 feet
-
What is the maximum number of cables in a standard single-phase pedestal, with six-position URD moles?
15
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Should all electrical equipment be considered energized?
Yes
-
When electric meter employees are working on company premises other than electric meter shops, they shall ______.
Conform to the safety rules of other departments
-
When shall required Lineman’s class “2” higher rubber gloves be worn?
When cutting service drops at a fire or similar emergency
-
Is it required to wear a hard hat every time you’re outside your truck.
No
-
How many employees may work off of the same ladder?
Only one
-
Can Phone loops, cable TV conductors, grounding clamps, etc. be attached to the service mast.
No
-
What is the maximum height of the point of attachment above the roofline?
48 inches
-
Must all meters shall be installed outdoors unless approved by the meter department for indoor location.
Yes
-
What is the minimum depth of working space in front of metering equipment?
- 3 feet,
- 3 1/2 feet or
- 4 feet
- (depending on the fire rating)
-
What height shall indoor multiple meter sockets, vertically aligned be mounted at to center of meter?
2’ min to 6.5’ max
-
What height must a single meter be mounted?
(center of glass)
4' min to 6' max
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Is a stamped brass address tag is required on any location of meter socket.
No. A non-removable portion only.
-
How and where must unit numbers on apartments must be marked?
By a permanent durable means at the meter socket and corresponding main service breaker, tenant panel board, doorway or entrance
-
What is the minimum dimensions on a 200 amp individual meter socket
19” high by 13” wide
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What is the maximum length of #2 triplex service drop conductor to residential or commercial installations?
90 feet
-
Is an authorized closed loop allowed on new electrical services.
No
-
Are Line and load conductors permitted in the same raceway or conduit.
No
-
When shall Service Mast braces or guyes be used?
When the WEATHERHEAD is more than 48 inches above the roofline.
-
What is the clearance requirement of the point of attachment to final grade?
Maximum 24'
-
What is the clearance requirement for service drops and loops over pedestrian spaces? (Per NESC)
- 12' min for 600V or less
- 10.5' min - insulated drops less than 300V
(normally 12', but can be 10.5')
-
What are the clearance requirements for service drops and drip loops over driveways? (Per NESC)
16' min for 600V or less
-
What are the clearance requirements for service drops not readily accessible to pedestrians?
3.5' for multiplex
-
What are the clearance requirements for service drops and drip loops for land traversed by vehicles?
16' min
-
What is the minimum size and material type for a service mast?
2" GRC
-
What are the clearance requirements for the service mast above the roofline?
48" max
-
Are service mast couplings allowed above the roofline?
Below?
Not above, but below is ok.
-
What is the required length of the service entrance conductors?
- 36" min commercial
- 24" min residential
-
What is the maximum OH service Voltage that can be attached directly to a building (except substation or transformer room)?
2400V
-
UG line & load conductors shall enter & exit the same side of the socket.
True or False?
False
-
How many U-guards are allowed per pole?
Encompassing what % of the pole?
How many conductors per each U-guard?
3 U-guards max
40% of pole max
One set of conductors per U-guard (750 max)
-
What is the maximum number of service risers per building?
6 max, with a single set of conductors in each riser.
-
Can UG laterals pass through a wall below grade or above the 1st floor level?
No.
-
Can load conductors exit through either end of horizontals, back or verticals?
No, NOT the left!
-
On lever bypass type housings, load conductors shall exit right or lower rear knockouts.
True or False
True
-
Can customer owned conduit be attached to our pole?
No. Not more than 6" above final grade.
-
How many feet of customer owned conductor must be coiled at the base of pole?
32'
-
How many secondary runs per phase on a 3 phase padmount transformer?
8 runs per phase (24 total)
-
How many days may closed loops be authorized?
7 calendar days. (or temp meter must be installed)
-
If we own/maintain the lateral, how many residential units can be grouped at one location?
6 Max
If house meter used, or more than 6 units, the customer owns/maintains lateral.
-
What is the max amperage for self contained meters?
400amps then CTs must be used.
-
What is the max breaker size that can be used for a 200amp meter?
250amp breaker
-
What is the max breaker size for a 320amp meter?
400amp
-
In what situation can we install a k-base meter?
No longer allowed per BB.
-
What metering rates does Xcel use
- SG-Secondary General
- C-Commercial
- R-Residential
- RD-Residential demand
- PG- Primary General
-
Are closed loops allowed on new services?
No.
-
Where must the high-leg be located in the meter housing?
In breaker panel?
Per NEC
- In meter housing on the right.
- In breaker panel in the center.
-
What is the maximum metered service size?
4000 amps.
-
Are "rack mounted" doughnuts/window type CTs allowed?
No. Not on racks.
-
Are grecian urns (bushing mount in xfrmr)allowed?
No.
-
What size, type, and length max conduit must be run underground to the CT cabinet?
- Min 1" sched 80PVC
- 25' max
-
What size, type, and length max conduit must be run above ground to the CT cabinet?
Min 1" GRC, IMC, or EMT 25' max
- Min 1-1/4" GRC, IMC, or EMT
- 25'-100'
Max 180 degrees of bends if over 25'
-
When may ice and snow shields be required?
In heavy snow/ice areas and above 6000' elevation.
-
How many services will be supplied to a building or other structure?
Only one. Per NEC
-
Are jumpers allowed on new services?
No. Only rewires.
-
What is the minimum depth of UG service laterals?
24"
-
What is the max length of the following service drops? #6, #4, #2, 1/0, 4/0, 500
(service pole must be used if exceeds)
- #6 - 110'
- #4 - 110'
- #2 - 90'
- 1/0 - 80'
- 4/0 - 70'
- 500 - 50'
-
How many runs of 350cmil per ped?
5 per ERT mold(4 services, 1 streetlight)
(plus 1 feed for a 6-block ERT mold)
So, 18 total cables (3ERT blocks @ 6 ea)
-
Per Blue Book, can the center knockout (bottom) of the meter housing be used?
No.
-
Can knockouts on either side of horizontal or verticle surfaces be used for load conductors?
Yes
-
UG temp ground rods will be installed by the customer, not less than 5' from the pedestal. True or False
True
-
Can temporary services be attached to trailers or vehicles?
No
-
Which of the following must be displayed on a temp?
C. Service address
-
What is the Max length of 4/0 conductor from the company pole to a temp?
What is the vertical angle of the drop?
- 70' max
- Must be greater than a 45 degree angle.
-
What is the minimum distance a OH temp can be from a company pole?
10'
-
UG temp supports and groundrods shall be where in regards to the utility easement?
Inside? or Outside?
Outside
-
How far must UG temp supports be from a pedestal?
- Pole type - 6' min
- Brace type- 5' min
-
What are the BB requirements for self-contained meter housings?
- -Steel sockets (no aluminum except on multiple metering)
- -5th terminal in 9:00 position connected with 16AWG wire min.
- -7th terminal connected w/16AWG min
- -Ringless cover, no screws
- -Locking jaw bypass on the right side.
- -Must accomodate a meter seal and padlock.
-
What are the ID requirements on the following installations?
Commercial-
Multiple Residential-
Single residence-
- -ID must be a brass, steel or aluminum tag attached to the non-removable portion of the meter socket
- -Unit number must also be permanently marked on the breaker, and entrance to the premise
-
What additional BB requirement does a 320amp meter socket have?
Anti-inversion clip on top right terminal.
-
What is the required height and width of the following meter housings?
200amp
320amp
- 200amp 19"h x 13"w
- 320amp 26 1/2"h x 13"w
-
In addition to the self-contained meter requirements, what 3 additional requirements apply to multiple meter housings?
- - Can be steel or aluminum
- - Must have a permanent barrier to isolate the disconnect switch
- - Each line-side compartment must accomodate a meter seal even if there is no meter present.
-
What are 4 Metering Pedestal requirements?
- -Furnished, installed and maintained by customer.
- -Separate covers on disconnect switch, wiring area, and metering area
- -If enclosed, must have a 8"x8" lexan viewing area
- -Door hinged on right or left. (can be top-hinged with prior approval if it can be propped open with a locking mechanism)
-
Which of the following structures can meters be attached to?
Mobile homes, construction trailers, fences, manufactured homes.
Only to manufacured homes if on a permanent foundation.
-
Meters must be located adjacent to and within line of site of the mobile structure it serves (mobile homes, construction trailers, etc)
True or False
True
-
What considerations must be taken into account for determining meter locations?
- -May not interfere with sidewalks, driveways or passageways
- -Can't obstruct doors or windows
- -Can be hazardous or impracticle
-
For Primary Metering, where is line-side conduit required?
From the point of delivery to the meter cabinet.
-
What are the mounting heights for the following?
Single meters-
Indoor multiple meters-
Outdoor multiple meters-
- Single meters- 4'min-6'max
- Indoor multiple meters- 2'min-6.5'max
- Outdoor multiple meters-3'min-6.5'max
-
What are the clearances in front of meters?
- 3', 3.5', or 4' deep per NEC
- and 2.5' wide
-
What the clearance requirements for gas regulators radially from:
-doors, windows, attic/dryer vents?
-Air intakes?
- -doors, windows, attic/dryer vents -----3'
- -Air intakes----6'
-
What is the clearance requirement for electrical equipment either side, or directly above a gas meter set?
12"min
-
What is the clearance requirement for electrical equipment from a propane tank refill valve?
15'
-
When are the following allowed?
-Junction boxes?
-LBs?
-Line & load conductors in the same raceway?
- Junction boxes - with approval
- LBs - with approval
- Line & load conductors in the same raceway - never
-
How many runs per single phase transformer?
- -4 runs if greater than 350mil
- -6 runs for residential (4 runs of 350 plus 2 runs of 4/0)
- -8 runs if 4/0 or smaller
-
When may we charge a re-connect fee?
If a service is disconnected by someone other than the company.
-
What are the clearance requirements of secondary services for roofs accessible to pedestrians by doorway, ramp, stair or ladder?
- 11' triplex
- 11.5' open wire
-
What are the clearance requirements of secondary services for roofs accessible to trucks?
Other vehicles (not trucks)?
- trucks- 16' for triplex
- 16.5' for open wire
- Other vehicles (not trucks)- 11' triplex
- 11.5' open wire
-
What size and type pole is required for temps?
Who installs/furnishes?
- min 4"x4" class 7 min, or class 6 pole
- 30' high for OH
- installed by customer
(1200ft per lb strength)
-
What is the min depth for temp poles?
OH pole circumference.
23.5" @ ground level, 5" @ top
-
What is the min distance an OH temp support brace can be from the point of attachment?
12"
-
Service equipment on temps must be supplied by the company.
True or False?
False. Customer supplies.
-
Temp support stakes must be what depth?
12" max
-
What size must temp meter sockets be?
11" min.
-
What length conductor must be available for termination in an UG ped for a post type temp? (TM20)
36"
-
What is the min conductor size in a temp?
min #6
-
Do temps need to be cold sequenced?
Why or why not?
As a commercial unit, no need to be if it is one single phase meter, one loop, where the Fault Current is below 10,000 amps
-
What is the size and length of liquitite required for temps?
- Min 1", max 1-1/2" diameter
- 12' long
-
For OH temps, what is the required height from ground to point of delivery?
12'min 16'max
-
What size must temp braces be? (TM30)
- 2"x4" min
- extending 3' min from the base
-
Where must the 5th terminal tickler be connected?
Tied to N in meter housing. (Not to ground, as the ground may inadvertently get cut)
Connect 5th terminal 1st, then tie to N to reduce chance of short by having grounded wire flailing around in housing.
-
What is the min size and material type for a riser?
- Minimum - Sched 80 pvc (GRC stronger)
- 2" min for 200 amp
- 3" min for 320 amp
-
What is the clearance requirement of a snow shield from the meter socket?
12" min
-
Main breaker or load center, if required, shall be mounted on the right side of the meter.
True or False
True
-
What is the Clearance Requirement from the drip loop to the roof?
18" min
-
What is the Clearance Requirement for conduit to extend beyond concrete, blacktop or patio installed by the customer?
2'
-
What size crimping dye should be used for insulinks and buttsplices:
-up to 2/0?
-3/0 to 4/0?
- -up to 2/0 : 5/8th dye
- -2/0 to 4/0 : 840 dye
-
What size crimping dye should be used for side-by-side buttons:
- #1 & 2?
- #3,5,6 & 7?
- - #1 & 2 : "O" dye
- - #3,5,6 & 7 : "D" dye (crimper itself)
-
What are 2 ways to check for 240 shorts in a ped if 1 leg is connected?
If short exists, wiggie will show 120V N to shorted leg and 240V phase to shorted leg.
-
How many temp drawing are there?
- 3
- TM10 - OH
- TM20 - UG Post type
- TM30 - UG Brace type
-
What is the rule of thumb for pole depths?
- 10% of pole height + 2'
- so, 5' deep for a 30' pole
-
If an installation (similar to a temp) is Permanent, what are the additional requirements?
- - must have two 6"x6" treated wood posts or two 4" GRC posts or two unistruts
- (buried 36" deep)
- min 3/4" exterior plywood or unistrut
-
What size jumper wire should be used for a meter housing for a 2 wire preferred method?
#6 minimum
(SC160, 170)
-
Where should the 5th terminal be connected to on a 3W3phase housing?
To the grounded phase within the meter socket.
(SC130)
-
What is the Clearance requirement between meter housings?
2" min
-
What are the clearance requirements of a service drop from a window:
Horizontal- triplex?
Horizontal- open wire?
Vertical?
- Horizontal- triplex: 3'
- Horizontal- open wire: 5.5'
- Vertical: 0
-
What is the clearance requirement of a drip loop over a deck/balcony?
- Triplex- 11'
- Open wire up to 750V- 11.5'
- Open wire over 750V- 13.5'
(same as hot tubs)
-
What is the CR of a service drop passing over a 4' overhang (less than 6' in length)?
If crossing more than 6' of roof, what is the CR after the 1st 6'?
18"
3'
-
What is the CR for electric meter from a propane refill valve?
12'
-
What is the CR of a gas regulator from a common building opening (door, window)?
3'
-
If the height won't permit 16' over a residential driveway, it may be reduced to what?
Insulated service drops:
Insulated drip loops:
- Insulated service drops: 12.5'
- Insulated drip loops: 10.5'
-
What is the CR of a service drop above a sidewalk?
12'
-
What is the CR of multiplex from edge of pool, Base of diving platform, water surface?
Diving platform?
Hot tubs?
- 22.5'
- 14.5'
- 11'
- (add 6" to each for open conductors, then an additional 2' for primary)
-
What is the CR for UG laterals to a pools?
To patios?
5' (per Joe- Sched 40 UG, Sched 80 above ground)
1'
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