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#102040 - 10/17/04 07:43 AM Marrettes in Panel
RobbieD Offline
Member

Registered: 02/23/03
Posts: 238
Loc: Canada
Is there any code rule that says that you can not use marrettes in panels? You know if the wire is too short. CEC 6-212(1) talks about conductors feeding through. I never use marrettes in panels because I make sure the wires are long enough but I am curious if there is a code rule not allowing this.

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#102041 - 10/19/04 08:35 PM Re: Marrettes in Panel
frank Offline
Member

Registered: 05/29/01
Posts: 361
Loc: windsor ontario canada
The code rule escapes me right now but yes for branch panels as long as cross sectional area does not exceed 40% or something like that.Marretts in control panels are not.Ive had inspectors offer to accept marretts as a solution where someone has landed more than one wire on breakers listed for only one wire.

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#102042 - 10/20/04 08:04 AM Re: Marrettes in Panel
aspencade Offline
Member

Registered: 10/19/04
Posts: 13
Loc: BC Canada
Robbie:

I think you got the rule already. The same rule specifies that you cannot use the panel as a junction box. If you make a connection with a marrette then you are using it as a junction box.

Don

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#102043 - 10/20/04 09:04 PM Re: Marrettes in Panel
frank Offline
Member

Registered: 05/29/01
Posts: 361
Loc: windsor ontario canada
See rule 12-3034 (ii).Wiring Space in Enclosures.
It is allowed except it's 75% cross sectional area not 40%.A circuit that enters and exits an enclosure in one or more directons is the defenition of a j-box. 6-212(1)keeps separately derived systems seperate or that's how CCS inspectors rationalize it.

[This message has been edited by frank (edited 10-21-2004).]

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