Recent content by STEVETERRY

  1. STEVETERRY

    20Amp Twist Lock connectors - outdated vs L6-20 and L6-15

    The issue is where the connector is used. If it's on a piece of listed portable equipment, its UL recognition is subsumed in to the listing of the equipment. However, it cannot be used as a permanently installed receptacle in a building's infrastrucure, since there is not a physical...
  2. STEVETERRY

    20Amp Twist Lock connectors - outdated vs L6-20 and L6-15

    1. Open can. 2. Carefully re-insert worms into can. 3. Close can. BTW, PowerCon and True1 are UL Recognized, not UL Listed--a big difference. For more on this subject, see: https://blog.etcconnect.com/2018/03/product-listing-secrets-ul-listed-vs-ul-recognized/ :-) ST
  3. STEVETERRY

    Dimmer rack CB/disconnects

    The actual definition from the 2020 NEC: Stage Switchboard. A permanently installed switchboard, panelboard, or rack containing dimmers or relays with associated overcurrent protective devices, or overcurrent protective devices alone, used primarily to feed stage equipment.
  4. STEVETERRY

    20Amp Twist Lock connectors - outdated vs L6-20 and L6-15

    That is correct--this pin connector cannot be used at 250V in North America. Please see this link: https://blog.etcconnect.com/2019/06/why-cant-i-use-a-125-250v-pin-connector-to-feed-a-208v-luminaire-in-north-america ST
  5. STEVETERRY

    20Amp Twist Lock connectors - outdated vs L6-20 and L6-15

    The core issue here is an old-type non-NEMA connector that allows use with H-N-G at 120V and H-H-G at 208 or 240V. As previously mentioned, one has no guarantee of the voltage on the connector. It's legal, because it was legal when installed. However, if it was my facility, I would seriously...
  6. STEVETERRY

    Automated Fixtures Questions on the Source 4WRD

    All I can say is that S4WRD Color will swing through the yoke with a standard 1/2-13 bolt head and flat washer affixing it to the c-clamp. That spec was a key factor in the product development-and caused more than a bit of angst in the development team. If you are using a higher profile...
  7. STEVETERRY

    Dimmer rack CB/disconnects

    "It's been awhile since I've been in the room, but I think the CBs are inside that room -- and I think code *requires* the disconnecting means to be "in sight of" the devices anyway, right?" There is no such NEC requirement for stage switchboards such as those you describe. However, it is very...
  8. STEVETERRY

    Important NEC Tentative Interim Amendments--Public Comment

    Here it is from NEC 2020: 520.73 Switches Required. All luminaires, lampholders, and any receptacles adjacent to the mirror(s) and above the dressing or makeup counter(s) installed in dressing or makeup rooms shall be controlled by wall switches installed in the dressing or makeup room(s)...
  9. STEVETERRY

    Important NEC Tentative Interim Amendments--Public Comment

    I do not personally know of a fire created by appliances left on in dressing rooms. But I'll bet there was one, back at the dawn of time. If you have a compelling argument as to why the pilot light should be eliminated, you can submit a public input to the 2026 NEC. That comment period will be...
  10. STEVETERRY

    Important NEC Tentative Interim Amendments--Public Comment

    I assume that there was one or more fires back at the dawn of time, but I have no specifics. It is reasonable to assume that heating appliances (curling irons, etc) plugged into counter-level dressing room outlets could be inadvertently left on, causing a fire risk. The pilot light requirement...
  11. STEVETERRY

    Important NEC Tentative Interim Amendments--Public Comment

    No, it does not cover that issue. This is strictly about the relative position and protection of the connection points for ungrounded, grounded, and equipment grounding conductors that are currently mandated by 2020 NEC 408.18(C) 1, 2, and 3. It affects Stage Switchboards (fixed and portable)...
  12. STEVETERRY

    Important NEC Tentative Interim Amendments--Public Comment

    There are two proposed NEC Tentative Interim Amendments (TIA's) in public comment that are of significant importance to the entertainment industry. TIA's 1573 and 1574 seek to exempt permanent and portable Stage Switchboards (dimmer racks and relay racks, for example) from certain requirements...
  13. STEVETERRY

    Strain relief

    I think you mean a "2-screw" type connector, not a "set-screw" type: https://www.maltbyelectric.com/index.jsp?path=product&part=59409&ds=dept&process=search&qdx=0&ID=%2CCONDUIT.ACCESSORIES%2CBX.NON.METALLIC.CABLE.S.E.C.LIQUID.TIGHT.FLEX.FITTINGS%2Cdept-1OG&title=3302.TB ST
  14. STEVETERRY

    Dave Cunningham and the Magic of the Source 4--today at 2PM eastern

    "DC threw all that into the garbage and re-invented the wheel essentially." And that is what makes Dave unique in our industry. Nobody can do that reinvention like Dave. Hence, my reference to "magic". ST
  15. STEVETERRY

    Dave Cunningham and the Magic of the Source 4--today at 2PM eastern

    That was the color filter only. ST