Solar PV Why Resources Tests Construction Contact Search Terms

Single Phase Services


A consumer service is considered to be all of the Wiring from the service box, to the point where the utility makes connection.
The supply Service can either be overhead or underground. This comes from the utility company on a pole, or ground transformer. Preparing an installation for the supply service requires several considerations. Nova Scotia Power site recommendations.

1 ) figure out the demand factors for home. Square meters of living space, what is going to require electrical demands on the service.
2) acquire a permit. Keep in contact with the utility.
3) Arrange for a temporary hookup.
4) arrange for the wire inspector to perform are rough -in inspection.
5) Arrange for the service entrance to be inspected.

It is extremely important to communicate with the supply authority. Developing an amicable relationship can only help in the long run.

Service equipment is located between the supply authorities distribution equipment and the consumers distribution equipment.

Section 6 of the CEC applies to services, service equipment, and metering equipment.

Overhead Service Highlights

The installation of a service entrance mast has requirements because of safety.
-they are placed not to exceed nine meters for supply company to be able to connect conductors. Minimum 3.5 meters.
- rigid steel conduit to be able to stand bad weather and winds.
-a use of bolts to fasten not less than 38 mm in any dimension.
-a roof rafter or roof truss to secure a guy.
-separate brushed holes to prevent arcing from conductors in the service head.
-drip loops at a minimum length for connection.
-proper sealing of conductors.
-The conductors pointing downwards to prevent water coming into the insulation.

Underground Service Highlights

Once again there are safety requirements for underground installation.
-in accordance with Table 19 for a condition of use.
-Approved for service entrance use( conductors)
-buried with underground requirements.
-without splices or joints( except 12-112 )
-drain water from conduit
-must be scaled
-proper fittings that allow movement. (Meters)
-must comply with the supply authority.
-accessible to only authorized personnel.
-no live parts for supply side( see below)
-line to line not to exceed 300 Volts
-spare conductors not less than 450 mm
-on load side except( 300 Volts-200 Amp-600 Amp see code)
-readily accessible
-not located in coal bins...etc see code...

Grounding and Bonding

Requirements are too large to mention. Section 10 deals with every scenario to guard people from electric shock.

Demand Factors

8-200 single dwelling
8-202 apartment
8-204 schools
8-206 hospitals
8-208 hotels
8-210 other
8-212 special lighting

Nova Scotia Power (Utility)

Here are some links to the Nova Scotia Power site. You'll need to visit the site, and become familiar with obtaining permits and installation requirements. Please keep in mind that you'll have to be there for the inspector, so if you have a full time job, and are doing a project on the side, you'll have to be available during business hours. Factor this into your pricing.

Click here for Inspections

Click here for applications