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Forum: General Electrical Forum

For electrical topics that do not match any of the other headings.

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    01-17-13 11:40 PM Go to last post
  1. Ampacities of Table 310.15(B)(16) for up to two current-carrying conductors?

    I find Table 310.15(B)(16), as a general reference, with "Not more than three current-carrying conductors" fascinating. Given that the majority...

    Started by MarineTech on 05-17-13
    2 Pages
    1 2
    • Replies: 11
    • Views: 194
    Today 11:23 AM Go to last post
  2. Ringing Out A New Electrical Installation

    I have been an electrical contractor for over 30 years and have never had to "ring out" our wiring after the rough-in. We always take our time when...

    Started by Wire Runner on Today
    • Replies: 4
    • Views: 60
    Today 10:41 AM Go to last post
  3. Rating of automatic transfer switch

    On an optional standby system, can a 400amp transfer switch be used on a 600 amp service? The normal and load feeders would be sized for 600 amps...

    Started by lfloyd on 05-17-13
    • Replies: 2
    • Views: 136
    Today 09:45 AM Go to last post
  4. Restaurant time clock

    Hello All, I'm trying to put together an inexpensive simple way to meet title 24 lighting code for a small/medium restaurant. It has 4...

    Started by tbakelis on Yesterday
    3 Pages
    1 2 3
    • Replies: 20
    • Views: 381
    Today 04:53 AM Go to last post
  5. hot tub trouble

    Got a call for a outdoor hot tub shocking some people yesterday. When I arrived at almost dark I got a voltage reading of around 20-30 volts from the...

    Started by WESL on 05-17-13
    2 Pages
    1 2
    • Replies: 19
    • Views: 379
    Yesterday 11:30 PM Go to last post
  6. speed control for single phase fractional hp ac motor

    I am needing to control the speed of a hoists used to accurately position a 50lb load. It would be used approximately 5 times per hour for less than...

    Started by BertPage on 05-17-13
    • Replies: 8
    • Views: 169
    Yesterday 06:46 PM Go to last post
  7. Altering a Dryer Cord

    We all know that the manufacturers of dryers don’t include the power cord with the machine, because they can’t know which type of outlet any given...

    Started by charlie b on 05-10-13
    3 Pages
    1 2 3
    • Replies: 20
    • Views: 751
    Yesterday 01:06 PM Go to last post
  8. 7,200 volts on house wiring

    I just wanted to throw this out there to get some other opinions. I have a situation in which the utility company's primary fell across the secondary...

    Started by rgsmith on 05-08-13
    3 Pages
    1 2 3
    • Replies: 22
    • Views: 1,102
    Yesterday 10:08 AM Go to last post
  9. Permit question??

    I am a general contractor in PA and I unfortunatley got "roped in" to installing baths and kitchens for one of the big "box stores". My issue is I...

    Started by jrfbuildit on 05-17-13
    • Replies: 8
    • Views: 259
    Yesterday 07:35 AM Go to last post
  10. Lamps and the new energy code

    A friend of mine just completed a new residential job and the inspector failed him on the final because of the standard incandescent lamps he...

    Started by ceb58 on 05-17-13
    2 Pages
    1 2
    • Replies: 15
    • Views: 308
    Yesterday 07:31 AM Go to last post
  11. Art.312

    Understanding NEC Vol. 1. Page 322 states; 312.5(C)Ex. (g) Conductor fill is limited to 60%, wording of the text book. However, in the...

    Started by rome44 on 05-16-13
    2 Pages
    1 2
    • Replies: 15
    • Views: 317
    05-17-13 10:05 PM Go to last post
  12. Harmonic Effects

    I have recently installed a single phase 100A service at a bus stop for a real time sign that includes lighting. Inside the sign there is a modem, PC...

    Started by ta2drchr on 05-16-13
    2 Pages
    1 2
    • Replies: 13
    • Views: 227
    05-17-13 09:29 AM Go to last post
  13. #12 THHN Adjustment Factor

    Hi everyone, On table 310.15(B) (16) THHN on the 75 degree column #12 is rated at 25A**. The ** stands for the maximum overcurrent rating 240.4D...

    Started by machronister on 05-16-13
    • Replies: 3
    • Views: 210
    05-17-13 08:37 AM Go to last post
  14. Liquidtight metal conduit for pool pump

    Can i run the metal sealtight underground for my pool pump? Need to run it about 30 feet.

    Started by Murray123 on 05-17-13
    • Replies: 1
    • Views: 128
    05-17-13 07:39 AM Go to last post
  15. "Disc Type" Harmonic Filter Question???

    One of our clients has recently been approached by a company that is pushing 'donut' style harmonic filters in order to reduce energy usage. They...

    Started by tmillard on 05-14-13
    2 Pages
    1 2
    harmonic filter
    • Replies: 10
    • Views: 256
    05-16-13 06:25 PM Go to last post
  16. Static Dissipation

    I'm not sure if this is the right forum for this question. If not i kindly ask a Mod to redirect this post. Let's start with a little backround....

    Started by GOZ on 05-08-13
    2 Pages
    1 2
    • Replies: 15
    • Views: 526
    05-16-13 03:21 PM Go to last post
  17. Is this imbalance kosher?

    Hi, I'm new to the forum and am registered as a consumer. I am a Metrologist and I have used this forum as a source of knowledge for years now. I...

    Started by Wilber100 on 05-15-13
    2 Pages
    1 2
    • Replies: 12
    • Views: 289
    05-16-13 01:14 PM Go to last post
  18. Good Torque Wrench?

    We all know of electricians who go their entire careers without torque their lug nuts to the listed pressure. I want to break that habit and find a...

    Started by Fliz on 05-13-13
    • Replies: 3
    • Views: 245
    05-16-13 12:26 PM Go to last post
  19. 75 KW Diesel Generator Cummins

    I need help trying to spec a 75KW Diesel Generator with integral fuel tank (installed directly beneath the generator) manufactured by Cummins. Can...

    Started by Malteser on 05-15-13
    • Replies: 3
    • Views: 170
    05-16-13 12:19 PM Go to last post
  20. USES Power Shaver

    My company has received a proposal for the installation of USES Power Shaver devices. www.powershaver.com/Home/tabid/103/Default.aspx ...

    Started by jtinge on 05-14-13
    2 Pages
    1 2
    • Replies: 14
    • Views: 409
    05-16-13 10:33 AM Go to last post

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