Sub Panel

[Phillip Dougan]

I am installing a 100 amp subpanel in a detached garage. Building codes in this area are based on the 95 NEC. Could someone please tell me what the 95 NEC burial depth requirement is for the feed to the subpanel. I have been told two different things by building inspecters and need to know what the 95NEC requires. I don't have easy access to the 95 NEC.

 

[Phillip Dougan]

I am installing a 100 amp subpanel in a detached garage. Building codes in this area are based on the 95 NEC. Could someone please tell me what the 95 NEC burial depth requirement is for the feed to the subpanel. I have been told two different things by building inspecters and need to know what the 95NEC requires. I don't have easy access to the 95 NEC.

Sorry guys but I meant to say "Building codes in this area are based on the (05) NEC". I'm stuck in the past I guess.

 

[mcclary's electrical]

ther'es no such thing as a 95 code book

 

[ty]

ther'es no such thing as a 95 code book

it would be 1993 or 1996, 1999, 2002, 2005, 2008.

So what Code was in affect in your area in 1995?

 

[raider1]

Welcome to the forum.

The burial depth requirement will be based on what type of wiring method you are going to be using.

What type of wiring method are you going to use?

Also is this going to be installed under a driveway or parking area?

The requirements will be located in Table 300.5 of the 2005 NEC.

Chris

 

[Phillip Dougan]

Welcome to the forum.

The burial depth requirement will be based on what type of wiring method you are going to be using.

What type of wiring method are you going to use?

Also is this going to be installed under a driveway or parking area?

The requirements will be located in Table 300.5 of the 2005 NEC.

Chris

Sorry guys but I meant to say "Building codes in this area are based on the (05) NEC". I'm stuck in the past I guess. It will be insalled in conduit and it will not be under a driveway or parking lot.

 

[skeshesh]

As stated by others there is no 95 edition of NFPA70(NEC). In 1995 they were probably following the '93 edition. Here's a link to the NFPA website where you can view the 1993 edition of NFPA70 for free when you sign up for the website (no charge, no purchases necessary). You can't print out the pages, but if you just need to look it's a great resource:

http://www.nfpa.org/freecodes/free_access_agreement.asp?id=7093SB

 

[raider1]

For PVC conduit the burial depth would be 18" in accordance with Table 300.5 unless you hade 2" of concrete covering the trench then it would be 12".

Chris

 

[John Valdes]

NEC 2005 Table 305 is where your answer lies.

Direct Burial cables - 24"

RMC or IMC - 6"

PVC - 18"

 

[Dennis Alwon]

NEC 2005 Table 305 is where your answer lies.

Direct Burial cables - 24"

RMC or IMC - 6"

PVC - 18"

Of course this can be amended by wiring in a residential area.

Direct burial could be 12", PVC need not be 18

 

[stevenje]

ther'es no such thing as a 95 code book

As you sure that Sparky doesn't have a looseleaf copy? He certainly has everything else!

 

[Phillip Dougan]

Thanks for the info everyone.