"Intrinsically Safe" blue wire color code?

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geerhed

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Does anyone have a specification for the "light blue" the NEC (et.al.) call out for IS circuits in hazardous locations? Is there a RAL or Pantone color that is either 1. identified or 2. commonly used?

Thanks,
 
geerhed said:
Does anyone have a specification for the "light blue" the NEC (et.al.) call out for IS circuits in hazardous locations? Is there a RAL or Pantone color that is either 1. identified or 2. commonly used?

Thanks,
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That would be more of a wire manufacture spec or insulated cable mfg association.
 
IS "light blue" color coding is permissive rather than required. As such,identified is a pretty good term; i.e., is the chosen color, "Recognizable as suitable for the specific purpose, function, use, environment, application, and so forth, where described in a particular Code requirement." In fact, unless it would cause confusion with other onsite systems, light blue isn't even restricted to IS. See Section 504.8(C).
 
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