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Type: Posts; User: publicgood

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  1. Replies
    13$$
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    1,630

    Have you considered a cable tray option?

    Have you considered a cable tray option?
  2. Replies
    13$$
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    1,630

    Do you know if they installed heaters within the...

    Do you know if they installed heaters within the bus duct? Took precautions (and followed code) by utilizing vapor barriers at entrances of buildings? Derate for ambient? IR connections periodically?...
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    13$$
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    1,630

    https://www.eaton.com/ecm/idcplg?IdcService=GET_FI...

    https://www.eaton.com/ecm/idcplg?IdcService=GET_FILE&allowInterrupt=1&RevisionSelectionMethod=LatestReleased&Rendition=Primary&dDocName=TB01701002E
    ...
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    13$$
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    1,630

    Bus duct

    Bus duct
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    17$$
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    1,443

    I finally released my first FREE iOS (iphone) app...

    I finally released my first FREE iOS (iphone) app for voltage drop. Several more apps in the works.

    VDrop by Nebulous LLC https://itunes.apple.com/us/app/vdrop/id1461666751?mt=8

    I’ll let you...
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    0$$
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    VDrop iOS (iPhone) App - FREE

    I recently published a FREE new voltage drop app to the Apple App Store:

    VDrop by Nebulous LLC https://itunes.apple.com/us/app/vdrop/id1461666751?mt=8

    It is called VDrop. By Nebulous LLC.

    I...
  7. Will the PVC be protected from damage?

    Will the PVC be protected from damage?
  8. Replies
    3$$
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    497

    Yes

    Yes
  9. Replies
    3$$
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    497

    The source and entrance equipment are typically...

    The source and entrance equipment are typically in a separate room, but panels downstream from transfer switches don’t need to be.

    NFPA 110 (similar for NFPA 111)

    7.2.3* Level 1 EPSS equipment...
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    17$$
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    1,443

    Right. Which is why I was interested in age. One...

    Right. Which is why I was interested in age. One assumes many electricians near retirement may not use a smartphone. Where it is pretty safe to assume, not that older than this they wouldn’t, 40yr...
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    17$$
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    1,443

    https://www.bls.gov/oes/current/oes472111.htm#st

    https://www.bls.gov/oes/current/oes472111.htm#st
  12. Replies
    17$$
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    1,443

    Statistics About Electricians

    I am doing some app development for electrician tools. I’m trying to understand the market. I see the BLS shows 655,840 employed as of May 2018. Does anyone have a resource to understand age range?...
  13. You note current sensing. How will you sense...

    You note current sensing. How will you sense voltage to compute kwh?
  14. Without PTs, this is only an approximation of...

    Without PTs, this is only an approximation of usage.
  15. BICSI specifically states not to use isolated...

    BICSI specifically states not to use isolated ground receptacles.
  16. Replies
    5$$
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    504

    SWD/HID listed breaker would comply. As long as...

    SWD/HID listed breaker would comply. As long as the light fixtures have molex (or similar) connectors that would meet code.

    Likely not the intent and they forgot local switches, with the intent...
  17. Thread: Plenums

    by publicgood
    Replies
    3$$
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    307

    Tough one. I’d say yes since the environmental...

    Tough one. I’d say yes since the environmental air definition uses OR. With the goal of non-plenum wiring methods having potential to produce smoke.

    Informational Note No. 1:  The space over a...
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    15$$
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    I assume this is because the other (2) ATSs being...

    I assume this is because the other (2) ATSs being fed off of the generator utilize the neutral and land on 3pole ATSs (with un-switched neutrals)

    [/LIST]

    RESPONSE: The ATS-1 feeds fire pump...
  19. Replies
    15$$
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    1,473

    The system as a whole is solidly grounded by your...

    The system as a whole is solidly grounded by your normal service N-G bond, which your generator neutral is also touching.
  20. Replies
    15$$
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    Not bringing a neutral to ATS-3 is okay, since...

    Not bringing a neutral to ATS-3 is okay, since not needed. This does not classify that downstream system as ungrounded, as it is solidly grounded upstream.

    Am I missing another question?
  21. Replies
    15$$
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    1,473

    I am going to restate some things I believe I...

    I am going to restate some things I believe I understand/assume about the OP question:


    ATS-3 is not a service entrance ATS
    Bonding for the service is already done before it serves ATS-3
    ...
  22. Replies
    3$$
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    348

    Especially if you look to the industry standard...

    Especially if you look to the industry standard of care...NFPA 70B, NFPA 70E, manufacturer recommendations, NETA, NECA, etc.
  23. Replies
    3$$
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    348

    Is it likely to require examination, adjustment,...

    Is it likely to require examination, adjustment, servicing, or maintenance while energized?
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    4$$
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    506

    408.3(E) uses A-B-C to describe left to right,...

    408.3(E) uses A-B-C to describe left to right, front to back, and top to bottom - not L1, L2, L3.
  25. Replies
    4$$
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    506

    A-B-C or L1-L2-L3

    I understand these are used interchangeably. Curious though if there is a NEMA, ANSI, IEC, IEEE, or other standard based on equipment type or voltage? NEC 408.3(E) states A-B-C for arrangement...
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