2 STORY ADDITION ELECTRICAL PLAN

The electrical plan involves the following steps:

  1. Replace existing panel with new 40 circuit panel and new breakers (but no AFCI breakers) to handle existing circuits plus a 100 amp breaker to provide power to a sub panel. Include a home surge protector.
  2. When footers have been poured, run #2 service entry cable approximately 80 ft to a 100 amp 12 circuit main lug sub panel in the workshop.
  3. Run new 15 and 20 amp circuits to the workshop and expanded bedroom.
  4. Run 240 volt circuits to new outside heat pump, and steam generator placed over shower 8 ft ceiling.

CIRCUITS

All bathroom GFCI outlets are on one 20 amp circuit. The additional master bathroom outlet will be on this circuit.

The existing master bedroom light/fan is on the ?? circuit. This wall switch will be relocated when the bedroom door is moved and used to control 2 down lights in the new bedroom hallway.

The master bedroom has 4 wall outlets. The one on the end wall will stay where it is to provide an outlet in one closet. The one on the back wall will be relocated to the other closet. The 2 outlets on inner walls will be used on opposite sides of the bedroom hallway.

The following existing circuits will have their breakers replaced with AFCI breakers in the main panel: ???

The following new circuits will be pulled from the new sub panel:

  1. Two 20 amp circuits (one for the outlets in the workshop and one for the outlets in the bedroom. These will use AFCI breakers, and 20 amp receptacles for the workshop and 15 amp receptacles in the bedroom.
  2. Three 15 amp circuits with standard breakers for the:
  3. Workshop fan/lights (2 each) and 6 recessed lights (LED bulbs).
  4. Bedroom fan/lights (2 each),?? wall lights, and ?? recessed lights (LED bulbs).
  5. Four powered smoke detectors (1 each in the master bedroom, 1st floor addition and the other two 2nd floor bedrooms) and a Kiddie CO2/smoke detector in the 2nd floor hallway.
  1. Two 240 volts circuits:
  2. One 40 amp circuit for the Mr Steam MS225E steam generator (7.5 KW, Amps 240/IPH, wire size 8)
  3. One 20 amp circuit for the heat pump – see 6.1
  1. A ?? amp circuit for the furnace or air handler in the attic.

CODE TIPS

Use # 6 insulated wire to ground subpanel to rebar.

Use separate circuits for the following: 20 amp for GFCI outlets; 20 amp for outer outlets (1 circuit for each new room); lights/fans (1 circuit for each new room); and smoke and CO2 detectors.

Use #2 service entry (2/2/2/1) wire from the main panel to the 100 amp sub panel. Use 12/2 wire for the 20 amp outlet circuits. Use 14/2 wire for the 15 amp lights/fans and smoke detector circuits.

Use fan-rated boxes for the ceiling fans, and use bubble covers on the 2 outside outlets.

All outlets will be tamper-proof outlets (or GFCI outlets)

No more than 12 ft along a wall from one outlet to the next.

Staple wire to studs every 4 ft and include a staple within 18 inches of each box.

Have an electrician teach me how to run wire into a box so it will pass the rough inspection.

DESIGN TIPS

Hide ceiling smoke detectors around a corner or in a corner.

6.2