Junction box


  • Webster's Revised Unabridged Dictionary
    • Junction box (Elec) A box through which the main conductors of a system of electric distribution pass, and where connection is made with branch circuits.
    • ***


In literature:

Dec. 5, 1881 439,391 Junction Box for Electric Wires.
"Edison, His Life and Inventions" by Frank Lewis Dyer and Thomas Commerford Martin
At intervals there are junctions for service connections, with street boxes and covers serving as inspection chambers.
"Scientific American Supplement, Vol. XXI., No. 531, March 6, 1886" by Various
At the Junction she changed cars for Chicago, missed two connections, and lost her lunch-box.
"Miss Mink's Soldier and Other Stories" by Alice Hegan Rice
For the lighting circuits a flexible steel conduit is used, and a special junction box.
"The New York Subway" by Anonymous
Best of all, is to have the cold junction in a box, together with a thermometer, so that its temperature may definitely be known.
"The Working of Steel" by Fred H. Colvin
The next moment the Midway Junction "ghost" stepped grimly from his box, and stood before them.
"The Young Railroaders" by Francis Lovell Coombs
She traced the launching circuits to a junction box and opened the lid.
"Deathworld" by Harry Harrison
If there is, see if there's a junction box or a switch or anything.
"Smugglers' Reef" by John Blaine
These tap connections are best made by means of junction boxes which contain terminals for all the conductors.
"Cyclopedia of Telephony and Telegraphy, Vol. 2" by Kempster Miller
Say, Tupper, I went over the junction-box in the alley back of the house.
"Whispering Wires" by Henry Leverage

In news:

Forensic investigation into boy's death reveals lethal combination of severed ground wire and water buildup in junction box.
Junction box SIMCO Industrial Static Control Hatfield PA USA SIMCO introduces a new junction box for use with the Blue Bar HL and PerforMAX 3 HL.
A box containing only straight pulls that is calculated by the straight-pull method could be too small if there are spliced conductors in the junction box .
A junction box with only straight pulls containing spliced 4 AWG or larger conductors must comply with the minimum-size requirements of 314.28(A)(1) and (A)(2).
Pull- and Junction-Box Calculations, Part II.
314.28 Pull and Junction Box es.
The National Electrical Code (NEC) has specific requirements detailing how to calculate the maximum numbers of conductors in boxes (outlet, device, junction, pull, etc.
For example, a junction box has two rows of raceways on the right side and two rows on top.
Next month's Code in Focus continues the discussion of pull and junction box calculations.
The West Seattle Junction is not full of big box retailers and is not known as a mecca for those who want to camp out on a sidewalk.
Community members interested in becoming guardians can mail their donations to The House, PO Box 2837, Grand Junction, CO 81502, or sign up online at the related link below.
Amargosa Opera House & Hotel PO Box 8, Death Valley Junction, CA 92328 amargosa- opera-house .com 760-852-4441.
The outside plant is essentially the local loops and all their associated equipment, which includes the cables, junction boxes, load coils and other structures.
Squirrels chew up everything junction boxes and cable.
Electrical Junction Box Manufacturer, RACO, Relocates Distribution Center to South Bend , Indiana.

In science:

The apparatus comprises a Junction Box and a Mini-Tower hosting 16 optical sensors.
First results from the NEMO Phase 1 experiment
The apparatus includes prototypes of the critical elements of the km3 detector: the Junction Box (JB) and a prototype detection unit called Mini-Tower.
First results from the NEMO Phase 1 experiment
The Junction Box was connected to shore via a 28 km electro-optical cable reaching a shore station located inside the port of Catania where the power supply, the instrumentation control and the data acquisition systems are located.
First results from the NEMO Phase 1 experiment
The number of excess Cooper pairs on the box can be measured via a probe Josephson junction through which Cooper pairs can tunnel out of the box, depending on the charge state of the box and on the probe voltage Vp (Fig. 3.7).
Experimental Quantum Computation with Nuclear Spins in Liquid Solution
The two junctions J1 and J2 (in the left and right dashed boxes) have anharmonic potentials with unequal energy level spacings (shown below).
Spectroscopy of Three-Particle Entanglement in a Macroscopic Superconducting Circuit
Connection to the Junction Box is provided through a wet mateable hybrid connector (HC) placed on the tower base.
Status of the NEMO Project
Also the power feeding and control system has been tested in its complete configuration. The integration of the junction box (Fig. 5) is completed while the mini-tower (Fig. 6) integration is almost completed. Their deployment and connection is scheduled forthe autumn of 2006.
Status of the NEMO Project
The fully assembled internal vessels of the Junction Box.
Status of the NEMO Project
Since 1996, the Collaboration has deployed many strings to monitor the environmental parameters of water, the permanent electro-optical cable of about 40 km, transmitting data and power between the shore station in La Seyne sur Mer, and the junction box off shore that is operating since November 2002.
Rapporteur Summary of Sessions HE 2.2-2.4 and OG 2.5-2.7
The permanent electro-optical cable, of about 40 km, transmitting data and power between the shore station in La Seyne sur Mer and the junction box off shore has been operating since November 2002.
In Search for Extraterrestrial High Energy Neutrinos
In December, 1993, the basic infrastructure for the DUMAND experiment was put in place on the ocean bottom off the Big Island of Hawaii: the underwater junction box, shore cable, environmental monitoring equipment, and the first string of phototubes.
Summary of Nuclear and Particle Astrophysics Sessions
We first compare two simple circuits (figure 1). One is the Cooper pair box with a Josephson junction that is voltage-biased through a capacitor.
Quantum phase slip junctions
This model consists of suberconducting box with a low-capacitance, CJ and Josephson junction, EJ biased by a classical voltage, Vg through a gate capacitance, Cg placed inside a single mode microwave cavity [10, 11, 12].
Dynamics of encrypted information in the presence of imperfect operations
The two DOMs in each tank are connected to the surface junction box, which is between the tanks at a distance of 25 m from the corresponding deep string.
IceCube: Status and Results
The simplest device displaying Coulomb charging effects is the single electron box (SEB) which is formed by a metallic island between a tunnel junction and a gate capacitor, see Fig. 1.
Coulomb charging energy for arbitrary tunneling strength