Reply to thread

Message

<blockquote data-quote="Ryan Lantzy" data-source="post: 34402" data-attributes="member: 7">Re: So, what are some warning signs that a stage may be unsafe?I&#039;m not sure.&nbsp; For the record, I rechecked 400.4 does allow ST, STO, STOO, STOOW, on &quot;theater stages&quot; as well... that list was long and I didn&#039;t feel like retyping it all out, skipped right over those.&nbsp; So it doesn&#039;t prohibit thermoplastic.&nbsp; S, S, SC, and SJ (thought not technically allowed it&#039;s a similar material) are most commonly seen in this industry and most literature I&#039;ve found list them as flame retardant while ST anything isn&#039;t.&nbsp; I would imagine that is because one is rubber and one is plastic.I don&#039;t know for sure, but my guess is they are not covered by these sections because they are part of &quot;cord and plug connected equipment.&quot;&nbsp; The sections pertaining to theater/live sound (520) are talking mainly about electrical supply and branch circuits.&nbsp; It does seem like grey area though.&nbsp; Forget IECs for a second though... if 520 does apply to literally everything on stage, you couldn&#039;t even have a little portable fan up there if it were equipped with an SJT cord.&nbsp; It also might fall under some other section that exempts cords under a certain length or current rating or something.None-the-less, good question Silas.</blockquote>

[QUOTE="Ryan Lantzy, post: 34402, member: 7"] Re: So, what are some warning signs that a stage may be unsafe? I'm not sure. For the record, I rechecked 400.4 does allow ST, STO, STOO, STOOW, on "theater stages" as well... that list was long and I didn't feel like retyping it all out, skipped right over those. So it doesn't prohibit thermoplastic. S, S, SC, and SJ (thought not technically allowed it's a similar material) are most commonly seen in this industry and most literature I've found list them as flame retardant while ST anything isn't. I would imagine that is because one is rubber and one is plastic. I don't know for sure, but my guess is they are not covered by these sections because they are part of "cord and plug connected equipment." The sections pertaining to theater/live sound (520) are talking mainly about electrical supply and branch circuits. It does seem like grey area though. Forget IECs for a second though... if 520 does apply to literally everything on stage, you couldn't even have a little portable fan up there if it were equipped with an SJT cord. It also might fall under some other section that exempts cords under a certain length or current rating or something. None-the-less, good question Silas. [/QUOTE]

Verification