in-cabinet PDU safety regs?

Hi Folks,

Do you know of any regulations, standards or publications covering the
safe installation and use of the little 1U and 2U PDUs in rack
cabinets? My google fu is failing me. All I've found is OSHA
and I'm not 100% sure it applies.

Thanks in advance,
Bill Herrin

If you are in the US, NFPA 70 article 645 may, or may not, apply.

I've referenced article 645 before, but you have to look at anything
upstream or downstream of the PDU as well, as the system as a whole needs
to be within standards.