Hi Jeff:
Quotes from the 1996 NEC: "110-2. Approval. The conductors and equipment required or permitted by this Code shall be acceptable only if approved." "Approved: Acceptable to the authority having jurisdiction." "90-7. Examination of Equipment for Safety. For specific items of equipment and materials referred to in this Code, examinations for safety made under standard conditions will provide a bais for approval where the record is made generally available through proumlgation by organizations properly equipped and qualified for experimental testing, inspections of the run of goods at factories, and service- value determination through field inspections. This avoids the necessity for repetition of examinations by different examiers, frequently with inadequate facilities for such work, and the confusion that would result from conflicting reports as to the suitability of devices and materials examined for a given purpose. "It is the intent of this Code that factory-installed internal wiring or the construction of the equipment need not be inspected at the time of installation of the equipment, except to detect alterations or damage, if the equipment has been listed by a qualified electrical laboratory that is recognized as having the suitable facilities described above and that requires suitability for installation by this Code." So, the NEC requires all parts to be certified. If the rack has a certification label on it indicating the whole thing is certified, then the inspector will stop there. If the rack does not have such a label, then the inspector is entitled to look at the individual parts included in the rack for certification labels. It is true that a power supply can be evaluated as a component of the system. If this is the case, then the system must bear a certification label. If the inspector does not accept that the power supply is included in the system certification, then providing him with a copy of the certification report will clarify that problem. Best regards, Rich ------------------------------------------------------------- Richard Nute Product Safety Engineer Hewlett-Packard Company Product Regulations Group AiO Division Tel : +1 619 655 3329 16399 West Bernardo Drive FAX : +1 619 655 4979 San Diego, California 92127 e-mail: [email protected] ------------------------------------------------------------- --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
