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Inch and One Half (41) Electrical Conduit Dimensions

One Inch and One Half 1 1/2″ is the trade size, not the actual dimension of electrical conduit.  Forty One 41 is the metric...
Examples of PVC Schedule 40 Electrical Conduit. The labeling on the conduit is also depicted.

Electrical Conduit Types

Dear Mr. Electrician: I am making plans to build a new house for myself.  I have an architect working on plans and I want...
The Backside of a Residential Telephone Jack

USA Telephone Wiring Color Code

Tip + Ring - Cat 3 Green Red Cat 3 Black Yellow Pair 1 White with blue stripe Blue Pair 2 White with orange stripe Orange Pair 3 White with green stripe Green Pair 4 White with brown stripe Brown  

Two Inch Electrical (53) Conduit Dimensions

Two Inch 2″ is the trade size, not the actual dimension of electrical conduit.  Fifty Three  53 is the metric designator not the actual...

Three Quarter Inch 3/4″ (21mm) Electrical Conduit Dimensions

Three Quarter Inch 3/4″ is the trade size, not the actual dimension of electrical conduit.  Twenty One 21 is the metric designator not the...
Wires in a hole awaiting the installation of an electrical box

Installation of an Additional Wall Dimmer and New Ceiling Light Fixture

Dear Mr. Electrician: Is it possible to install an additional dimmer next to an existing one and connect a new ceiling light to the...