Article 647 Sensitive Electronic Equipment - What Applies?

[NEC User]

What type of equipment is considered sensitive electronic equipment and applicable for Article 647 Sensitive Electronic Equipment?

Data Racks, Processors, Relays, Servers, Printers, Computers?

 

[NEC User]

I couldn't find any definition within NEC

 

[mgookin]

Anything with a female connector on it!

(sorry, I couldn't resist)

 

[petersonra]

Anything with a female connector on it!

(sorry, I couldn't resist)

Have you noticed that at least some manufacturers have stopped referring to them as male/female and now refer to them as pin/socket?

 

[fmtjfw]

647 -- Audio Video equipment

647 -- Audio Video equipment

The idea was to reduce 60Hz hum in audio equipment and related 60Hz artifacts in TV signals.

 

[GoldDigger]

Have you noticed that at least some manufacturers have stopped referring to them as male/female and now refer to them as pin/socket?

Part of that may have come from the problem of the DB-25 (RS-232) and similar data connectors where the female (socket) contact is mounted in the male shell and vice versa.
In RF, there have been coaxial connectors, notably the General Radio series, which are referred to as hermaphroditc, in that any connector would mate with any other connector, no male vs. female dichotomy.
Old coaxial microphone connectors had the same characteristic. But mating two connectors required using the screw shell from either one of them.

In "common" pin and socket connectors the male/female based on the shell started getting fuzzy when touch safe connectors with the metal parts shrouded in both kinds came into popularity.