MIEngineer
Member
- Location
- Michigan
Hello All,
I was wondering what people interpretations of 2005 NEC 110.34(C) was.
(C) Locked Rooms or Enclosures. The entrance to all buildings, vaults, rooms, or enclosures containing exposed live parts or exposed conductors operating at over 600 volts, nominal, shall be kept locked unless such entrances are under the observation of a qualified person at all times.
Where the voltage exceeds 600 volts, nominal, permanent and conspicuous warning signs shall be provided, reading as follows:
DANGER ? HIGH VOLTAGE ? KEEP OUT
The second paragraph seems a bit dijointed. I read it as locked rooms with EXPOSED LIVE PARTS over 600V need the sign. Others here feel locked rooms with ANY equipment over 600V need the sign, even switchgear with cubicles.
I Appreciate any responses.
I was wondering what people interpretations of 2005 NEC 110.34(C) was.
(C) Locked Rooms or Enclosures. The entrance to all buildings, vaults, rooms, or enclosures containing exposed live parts or exposed conductors operating at over 600 volts, nominal, shall be kept locked unless such entrances are under the observation of a qualified person at all times.
Where the voltage exceeds 600 volts, nominal, permanent and conspicuous warning signs shall be provided, reading as follows:
DANGER ? HIGH VOLTAGE ? KEEP OUT
The second paragraph seems a bit dijointed. I read it as locked rooms with EXPOSED LIVE PARTS over 600V need the sign. Others here feel locked rooms with ANY equipment over 600V need the sign, even switchgear with cubicles.
I Appreciate any responses.
