Smart 3 way switch
I have a set of lights on a single pole switch and another set of lights on another single pole switch. Neutrals at both points. One switch has a 2nd story over it. Is there any smart 3 way switch that...
View ArticleClik here to view.
Neon Lights Wattage Consumption
Hello, We are removing some Neon fixtures and will be installing some led fixtures. can anyone help me with the neon wattage consumption. There are 30 fixtures with, 12,000volt 30ma (milliamp)...
View Article24hr “Night Lights”
Is it necessary for a retail store to have night lights that remain on continuously, considering that I've been informed by the Electrical contractor that 24-hour night lights are required?
View ArticleSubdivision lights
Covered photo cell to power up the lights. Not all the lights come on but my meter reads enough power to power them. Changed out the light for a new light and still doesn’t come on. Any suggestions?
View ArticleLED 4 foot lamps
A manufacturing client is having issues with 5 rows of fixtures. 22 4 foot fixtures, 4 lamps across each, 5 rows. He replaced all rows with LED lamps removing the ballasts. 277 volt. rows will not turn...
View ArticleHarmonic - LED Lights
Will LED down lights create more harmonic in system more than compact fluorescent? How does this harmonic created by LED affect the electrical system in overall?Do lighting manufacturers or U.L. allow...
View ArticleType C led install
So I have never replaced a ballast with a driver and I am trying to see what that would look like for some hard to get to ball lights with CFL lamps in them. They are 2 lamp FT36 lamps with a 0-10v...
View ArticleWiring main panel and lighting panel to same fixtures for programming
Hello fellow sparkys! I’m wiring in a new Leviton relay panel with smart breakers and cat6 switches. The beginning seems simple. A circuit from a panel feeds into the Leviton panel and then feeds the...
View ArticleGround Brass Sculpture on Roof?
I have a customer who called to ask if we could ground a metal sculpture on his roof here in TN. The code book doesn't really address this does it? It's a standard composite roof and stick frame on a...
View ArticleCat6 and 120v same conduit?
So I’ve never seen or worked with low voltage switches controlling lighting. What I have is lights on a 120v circuit with 2 OC Sensors and 2 switches(3 way) the ox sensors and switches themselves only...
View ArticleBuilding size requirements.
Is there a sq footage building size that dictates when ASHRAE lighting requirements are required? Commercial office space is what I’m dealing with. No drawings are required for the renovation work I’m...
View ArticleDating Light fixture by UL & IBEW Labels
I have a light fixture that I was hoping someone could help me date using the UL Label or the IBEW Serial Number. UL Label is yellow with a blue border. The text says ELECTRICAL FIXTURE, issue number...
View ArticleWarehouse Lighting
If a warehouse has several rows of lights, all are around 20' up, where would you place occupancy sensors for each row, or couple of rows? Voltage is either 120V or 208V. Should the line voltage be...
View ArticleGigging lights
Those suckers draw a lot of power at 12 volts. Nieces boy called and wants to know how to run those off a 120 volt generator. Do they make A/C to DC power supplies for that purpose? About 400 watts...
View ArticleOccupancy sensor
Hi I have three sets of lights in one room (a dining room in a nursing home 18' x 38' with a slight pitch 2/12 on the ceiling with gable ends. The sets are 8 luminairs + 6 luminairs + 3 ceiling fans...
View ArticleIECC Occupancy Sensor Control
Hi all, I have some confusions on the verbiage with IECC 2018 - C405.2.1.1 (2) where it mentioned occupancy sensor control shall be manual on or controlled to automatically turn on the lighting to no...
View ArticlePower pack to OCC
I have a PP20 power pack going to a CM9 Occupancy Sensor. I am assuming it's ok to just butt splice an cat 5 in between for the low voltage class 2 wiring in a non-plenum drop ceiling? It's it's kind...
View ArticleClik here to view.
EXPLOSION PROOF LIGHTING?
HELLO, I am sending photos to assist in this question. Is the lighting in these photos explosion proof. I have under gone an ATF inspection the agent says, " these are not explosion proof..." They are...
View ArticleLow Voltage Lighting
Hi All! I have a small subdivision that has low voltage lighting installed on the houses to light up the road, but the transformer is located near the house panel at the entry to the community. One of...
View ArticleThermal Expansion or Vandalism
Anybody see PVC bell box do this before? Vandalism seems unlikely, since the light was not even scratched, about 15ft above parked cars. If vandalism, only a chisel or bullet could do this without...
View Article