Electrical code Compliance - Area Classification

Author

Area Classification - need help...

Evelyn S.

2005-08-01, 8:21 pm

I would greatly appreciate replies to this question:
Can a building (electrical building) containing MCCs and control panels =
be made a non-classified area if it is located beside a pump building =
which is classified as Class I Zone 2?
The electrical building is going to have the walls totally sealed to =
prevent gas from leaking inside. The side walls of the pump building =
nearest the electrical building is going to be sealed as well.
I have not experienced something like this arrangement as all electrical =
buildings I have worked on are located outside any classified extent. =
This one will have the electrical building within the 3meters classified =
extent of the pump building. Even though the side walls of both =
buildings are going to be sealed, I'm still not convinced that the =
electrical building should be anywhere within a classified area.
It would even be interesting to know how the "sealing" is going to be =
applied.

So, if anybody has any experience with this scenario, your reply to this =
would really be appreciated.

Dale Farmer

2005-08-02, 2:21 am

"Evelyn S." wrote:

> I would greatly appreciate replies to this question:
> Can a building (electrical building) containing MCCs and control panels be made a non-classified area if it is located beside a pump building which is classified as Class I Zone 2?
> The electrical building is going to have the walls totally sealed to prevent gas from leaking inside. The side walls of the pump building nearest the electrical building is going to be sealed as well.
> I have not experienced something like this arrangement as all electrical buildings I have worked on are located outside any classified extent. This one will have the electrical building within the 3meters classified extent of the pump building. Even t
hough the side walls of both buildings are going to be sealed, I'm still not convinced that the electrical building should be anywhere within a classified area.
> It would even be interesting to know how the "sealing" is going to be applied.
>
> So, if anybody has any experience with this scenario, your reply to this would really be appreciated.

What country and code are you working under?

PCK

2005-08-15, 7:21 am

yesi it has been done this way, you have just described Swift`s Adhesive
thinner mixing facilities in Brampton Ontario Canada
at all penetrations conduits must be sealed within 18 " with eys fittings
and Chico compound
all fittings must be explosion proof
"Evelyn S." <esimbol@shaw.ca> wrote in message
news:roxHe.86170$s54.34236@pd7tw2no...
I would greatly appreciate replies to this question:
Can a building (electrical building) containing MCCs and control panels be
made a non-classified area if it is located beside a pump building which is
classified as Class I Zone 2?
The electrical building is going to have the walls totally sealed to prevent
gas from leaking inside. The side walls of the pump building nearest the
electrical building is going to be sealed as well.
I have not experienced something like this arrangement as all electrical
buildings I have worked on are located outside any classified extent. This
one will have the electrical building within the 3meters classified extent
of the pump building. Even though the side walls of both buildings are
going to be sealed, I'm still not convinced that the electrical building
should be anywhere within a classified area.
It would even be interesting to know how the "sealing" is going to be
applied.

So, if anybody has any experience with this scenario, your reply to this
would really be appreciated.

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