Electrical Systems-Chapter 17 Pools and Fountains
drain
A ___________ is required at the low point of the each recession that houses dry-niche luminaires
double, cord
A cord connected pump is often used with storable pools. The pump should be ___________ -insulated and have an equipment grounding conductor in its ________
control circuitry
After checking the line and load sides, what should you check next?
isolate, jumper
After verifying that voltage is present in a power circuit, i need to then ______________ the control circuit from the power circuit using a ___________
underwater luminaires
All _____________ ______________ require GFCI protections
enclosures, equipment
All electrical ____________ and ___________ near a pool must be grounded
5'
All fixed metal parts within _______ of the inside edge of the pool walls must be bonded together
Luminaire
Another word for light fixture
7'-6"
Any light fixtures or paddle fans located within a 5' perimeter of the hot tub must be ____________ above the maximum water line
10 feet, GFCI
Any receptacles and switches within ________ feet of an indoor spa and hot tub unit must be ___________ protected
the clearances specified in section 680.8 are maintained
Conductors that are owned by an electric utility can be located over a pool as long as ___________
corrosion-resistant
Deck boxes must be constructed of ____________-_____________ material
they do not pose a tripping hazard
Deck boxes used for connections to underwater luminaires must be installed in a location where__________
rated maximums
Do not "push" the equipment beyond it's _____________ _____________
Underwater luminaires, all electrical equipment within 5' of the pool, all recirculating system equipment, junction boxes, transformer enclosures, panels that supply electrical equipment for the pool but are not part of the service equipment
Example of items that must be grounded
Forming shells of underwater light fixtures, drains, reinforcing bars in concrete, metal pool framing, ladders and handrails, metal deck boxes, transformers, enclosures, diving board frame, pumps and pump motors, metal conduit, metal pool cover components
Examples of items that typically should be bonded
4", 4'
Except when supplying dry-niche luminaires, a deck box must be elevated _____" or set back ______' from the pool's edge
short circuit, current surge
Failure of a protective device is usually the result of either a _____________ __________ or a ____________ __________
distinct part
Following the process of elimination, after checking the power connections to the supply, circuit breakers, and fuses, you should then check each _________ __________ of the equipment
1.) The lamp must operate at 15 volts or less, 2.) the lens, body, and transformer must be impact resistant, 3.) the assembly must be listed for its purpose and cannot have exposed metal parts, and 4.) the transformer must be identified for its purpose and must be an isolated winding type with a grounded metal barrier between the primary and secondary windings
For a cord and plug connected luminaire to be installed in the walls of a storable pool, what conditions must be met?
6 feet
For indoor hot tub and spa units, they must be no less than _________ feet from any receptacles in the same room
The luminaire is GFCI protected AND the luminaire is totally enclosed
For indoor pools, the required height of a luminaire above the maximum water level can be reduced to 7'-6" IF
service, panel board
For outdoor spa units, if the assembly includes a factory supplied panel, it can be connected to the _________ or main ____________
6 feet, GFCI
For permanently installed pools, a receptacle used to power the water pump motor is required to be at least ____ feet from the pool and ___________ protected
12 feet
For pool area lighting, code allows light fixtures (luminaires) to be installed directly above, or within 5 feet horizontally from the inside wall of a pool, as long as the luminaire is at least _________ feet above the maximum water level
18 inches
For under water lighting, luminaires must be installed at least ________ inches below the normal water level of the pool
possibility
For underwater lighting, luminaires must be designed so that there is no _______________ of shock hazard, even without GFCI
150
For underwater lighting, the circuit supplying the luminaires cannot be over __________ volts
instruction booklet
Hold on to the test equipment _________________ ________________ and refer to it when necessary to ensure the equipment is being used correctly and operating accurately.
15
If a flush deck box is potted, it can be used for lighting operation at ______ volts or less
brass
If the conduit is metallic, it must be made of ___________ or other corrosion-resistant material
voltage carried through the line
In section 680.8 of the code, the required clearance for overhead conductors depends on the ________
cuts, abrasions, or nicks
Inspect insulation on test leads before and after testing. Look carefully for any ______________
storage
Keep test equipment in good, clean ____________
Underwriters Laboratories or another recognized test laboratory
Luminaires used for underwater lighting must be of an approved type and listed by ______________________
closed, one
Make sure clamp-on instrument jaws are completely __________, and on _________ conductor at a time
10
Normally, receptacles are not allowed within _______ feet of the inside wall of a pool or fountain
safety rules
Observe all ____________ ____________ while testing
VII
Part _____ of article 680 of the code contains regulations regarding hydromassage bathtubs
VI
Part _____ of article 680 of the code contains regulations regarding pools and tubs for therapeutic use
IV
Part _____ of article 680 of the code contains regulations regarding spas and hot tubs
125 volt
Permanently installed pools must have at least one ______ volt receptacle within 20' for maintenance use
flow through the ground path and trip the overcurrent protective device
Proper grounding ensures that a short circuit will ______
equipment grounding connection
Receptacles that give power to cord connected pumps must have an ______________ ____________ ______________
the breaker is good if the voltage is correct
Testing a BREAKER is done by using a voltmeter, and connecting one side to the line side of one breaker and the other lead to the load side of a different breaker. How do you know that the breaker is good?
ground
Testing a FUSE is also done with the help of a voltmeter, except when checking a fuse, you need to connect one lead of the voltmeter to the load side of a fuse, and the other to the __________
Tied reinforcement bars in a concrete pool, the bolted or welded metal pool wall, or a solid copper conductor that is no smaller than 8 AWG
The common bonding grid may be any of the following:
copper, 8
The connection to the common bonding grid must be made with a __________ conductor no smaller than ___ AWG
12
The equipment grounding conductor for pool-related equipment and devices is normally no smaller than ______ AWG
Rigid metal, IMC, Liquid-tight flexible nonmetallic, or PVC
The forming shell of an underwater luminaire is equipped with threaded entry ports for conduit. What materials can be used for this conduit?
potted (sealed)
The luminaire cord must ____________ at the end attached to the fixture and its terminals to prevent water entry
Forming shell
The shell that houses a wet-niche luminaire
supply
Troubles are often encountered at the __________, or power source, of the circuit
finding a problem, and correcting a problem
Troubleshooting consists of two goals. _____________ a problem and ___________ a problem
True! Cords leading to underwater luminaires should always be shorted on the SUPPLY end
True or False, if the cord leading to the underwater luminaire needs shortening, it must be trimmed at the SUPPLY end, not at the fixture end.
True! Cord and plug devices can be used in an area less than 20 feet from the inside wall of the pool as long as they are rated 15 amps or 20 amps, and are GFCI protected
True or False? Cord and plug devices, such as table lamps, can be used in an area less than 20 feet from the inside wall of the pool
True! Special luminaires listed and identified for use at minimum depth of 4" are permitted, but not luminaire shall be installed at less tan 4" in depth
True or False? Special luminaires listed and identified for use at minimum depth of 4" are permitted
False, wet-niche luminaires can be lifted out of the forming shell for servicing
True/False Once a wet-niche luminaire is installed, it is installed permanently
False. The required clearance over the water surface and the clearance over a diving board or observation stand differ, wherein the clearances over diving boards or observation stands must always be maintained at least 10' horizontally from the pool
True/False The required clearance over the water surface is the exact same as the clearance over a diving board or observation stand.
True. You should check the LINE side FIRST, and the load side after
True/False, you should test the line side of the power circuit before the load side
True! All electrical equipment used with storable pools must be protected by a GFCI
True/False? All electrical equipment used with storable pools must be protected by a GFCI
True! Communication lines can pass over the pool if they maintain a 10' vertical clearance of diving boards and platforms
True/False? Communication lines can pass over the pool if they maintain a 10' vertical clearance of diving boards and platforms
FALSE WITH A CAPITAL F! Conductors that are not owned and maintained by the electric utility are NOT allowed to be strung over a pool or within 10' horizontally from the pool. This applies to applications such as service drops and conductors for pole-mounted lights.
True/False? Conductors that are not owned and maintained by the electric utility are allowed to be strung over a pool or within 10' horizontally from the pool
False! Deck boxes that supply dry-niche luminaires are NOT required to be elevated 4" or set back 4'. In fact, many styles of dry-niche fixtures have integral flush deck boxes to permit easier maintenance
True/False? Just like a wet-niche luminaire, a deck box for a dry-niche luminaire is required to be elevated 4" or set back 4' from the pool edge
intended
Use the test equipment for it's _____________ purpose
completely surrounded by water
Wet-Niche Luminaires are intended for installation in a forming shell mounted in a pool or fountain structure where the luminaire will be _____________
Experience, knowledge, and technique
What are the main ingredients to successful troubleshooting?
There is no minimum distance requirement for receptacles separated by a wall or barrier
What are the minimum distance requirements for receptacles separated from the pool by a wall or other barrier?
They must be GFCI protected
What are the requirements for all receptacles within 20 FEET of a pool?
Lights in the area AROUND the pool and lights IN the pool
What are the two basic groupings of lights used in and around pools?
If the motor does not start with the jumper installed, check the voltage across the overloads (with the jumper still in place)
What is the fifth step to troubleshooting a control circuit?
check the input voltage to the control transformer
What is the first step to troubleshooting a control circuit?
Isolate the control circuit with a fused jumper. If the motor starts with the jumper installed, the control circuit is faulty
What is the fourth step to troubleshooting a control circuit?
To keep all metals that are not intended to conduct electricity at the same electric potential and eliminate voltage gradients
What is the purpose of bonding?
Grounding and Bonding. The lug is attached to an equipment grounding conductor and bonding jumper
What is the purpose of the lug inside the forming shell?
check the output voltage of the control transformer
What is the second step to troubleshooting a control circuit?
verify the current draw of the control circuit
What is the third step to troubleshooting a control circuit?
The luminaire must be installed 5' above the maximum water level and be firmly attached to a structure
What requirements allow for a luminaire installed in an area located 5-10 feet from the inside wall of a pool to not need GFCI protection?
When the existing lighting fixture/outlet is 5' above the maximum water level, rigidly attached to an existing structure, and protected by a GFCI
When is it acceptable to have existing lighting fixtures and outlets within 5 feet of the inside wall of the pool?
protective device
When troubles are encountered at the supply, this usually means that something went wrong with the ____________ _____________, such as the circuit breaker or fuse
voltmeter
When troubleshooting power circuits, I should first use a ________________ to check each of the incoming lines to confirm that voltage is present at the required level
breaker
When troubleshooting the power source and power is present up to the protective device, the ___________ or fuse should be checked
power, protective
When troubleshooting the power source, before checking the protective device, you need to make sure that there is __________ up to the ____________ device
how the equipment functions, and what types of circuits are present
When troubleshooting, you need to understand what two things?
highest, overloading
When using instruments with several scales, always begin testing with the ____________ scale to prevent _________________
Article 680-Swimming pools, fountains, and installations
Where is the Code requirements found for areas in the vicinity of water?
power connections to the supply, circuit breakers, and fuses
Which components can usually be checked fairly quickly?
line voltage
___________ __________ means a good fuse, and zero voltage means the fuse is blown
motors
____________ are typically the most expensive individual components and are the most critical to operation
voltage gradients
a difference in electrical potential across a distance or space
Storable pool
a pool constructed aboveground capable of holding water at a maximum depth of 42", or any size pool with nonmetallic, molded walls or inflatable walls
common bonding grid
all items being bonded must be bonded to a _____________ _____________ _______________
Deck Box
an enclosure or junction box set on or in the concrete around the pool that is sued to supply the luminaire.
Wet-niche luminaires
an underwater luminaire intended for installation in a forming shell mounted in a pool or fountain structure where the luminaire will be completely surrounded by water
Dry-niche luminaires
luminaires which are installed in closed recessed formations outside the wall of a pool
testing equipment
the better the ___________ ___________, the easier the job and more accurate the readings
a jumper helps isolate the control circuit from power
what is a jumper used for?
The source is considered first, then you can move on and isolate the control circuit.
when checking a power circuit, what do you consider first? What do you do next?
energized
when making resistance measurements, never work on a circuit that is __________
Equipotential bond
when two or more objects share the same electrical potential