#200 AMP WIRE SIZE FOR 100 FEET INSTALL#
#200 AMP WIRE SIZE FOR 100 FEET CODE#

That is the maximum fault current which the breaker can interrupt without a failure which could ignite a fire. Breakers, including main breakers that are functioning as the Service Disconnecting Means, are marked with their withstand rating in symmetrical Amperes. You need to know the maximum fault current that will be available at the Service Disconnecting Means supply terminals. You may have another issue here that you would need to check out with your electrical utility. It's a relatively low cost step that provides real benefit for the life of the structure. Taking extra care with your grounding will help to make your homes wiring system and the loads it supplies much more resistant to surge and spike damage.

#200 AMP WIRE SIZE FOR 100 FEET INSTALL#

If you decide to install a Ground ring then you can avoid installing GEC for the rods by connecting them to the Ground Ring. Devise some way of protecting that conduit from vehicle movement.

If there will be a driveway immediately adjacent to the house then run the GEC in Schedule 80 Non Metallic Conduit to the height were it will enter the building.

Coil enough extra to reach the termination point inside the Service Equipment enclosure. If they're still going to require driven rods then drive them through the bottom of the foundation excavation and run the Grounding Electrode Conductor (GEC) up the foundation wall to well above finished grade.

#200 AMP WIRE SIZE FOR 100 FEET CODE#

I don't know what the Canadian Electrical Code says on that subject but it would be worth knowing before the foundation excavation is back filled. Check with the electrical inspection office to find out if you will still need driven rod electrodes ground rods if you have a concrete encased electrode. Placing it in the bottom of the foundation trenching will often put it much deeper and in the case of Grounding Electrodes deeper really is better. US Code only requires a ground ring to be 30 inches beneath the finished grade. Yes I'm saying all the way around the house. If you want to go a step better than absolute minimum then have the electrician come out and lay a Ground Ring around the outside of the footer from the future location of the Service Equipment back to the future location of the Service Equipment. The electrical inspector is not very likely to except 'They forgot' as an explanation. If at that point your electrician has to ask the general contractors superintendent to please tell them were the stub up of the rebar is so that they can run a grounding electrode conductor to it and they answer I don't know you have a problem. Let me just opine that is something worth mentioning to your general contractor especially if that general contractor is you! The Foundation is the very first part of your home that is actually built and your electrical system will not even be begun until after the frame, walls, and roof are completed. Given that you are in Canada that could have become no longer true but I would find it very hard to understand such a great step backward. If there is any reinforcing steel in your new home's foundation a connection to that steel must be made available to connect to the Main Bonding Jumper of your Service Equipment. And don't forget those that MUST be present at the House. If Code lets you calculate on 100% Power Factor, you'll get back that 0.03% and be well within the legal range.Ĭlick to expand.Don't leave out the other electrodes which are also present at the house. And it did.īy the way, this calculator assumes 90% Power Factor, not 100%. and then went 'Wait a minute! I bet if I type in '3.1 allowable' it will give me a better answer'. This right here is why you never take a voltage drop calculator for granted. Will your AHJ be alright with that? They ought to be, IMO. Voltage drop is a cat's whisker above 3%.In the USA we do that calculation based on 83% of service size anyway. Note that most consumer panels are not rated for continuous power, and you have to get special panels rated for continuous so a 200A panel is rated for 160A continuously. Amperage is 160A because Canada generally has you compute based on 80% ampacity, though I can't quote chapter and verse on how/if that applies to services.In this case the wire will be attaching to aluminum lugs at both ends, so anyone indulging in ill-informed fears should fear copper, not aluminum. Aluminum because anyone who buys 90m of copper wire of any size is mad as a hatter.Here's what I get when calculating for Canada, where they have legislated voltage drop.

200 amp wire size for 100 feet