Okay, let's break this down to address the safety and code compliance of your subpanel installation in California.

Key Considerations and Concerns1. Type 1 Enclosure Suitability

Type 1 enclosures are designed for indoor use. They provide a degree of protection against contact with the enclosed equipment, but not against rain, snow, or sleet. The most critical issue is that a Type 1 enclosure is

not rated for wet locations. This is a fundamental problem if it's exposed to the weather.2. "Behind" the Metal Door/Cover

The presence of a metal access door might offer some degree of protection, but it is

highly unlikely to provide adequate protection equivalent to a weatherproof enclosure. Water can still enter through gaps, seams, ventilation holes (if any), and when the door is opened, exposing the subpanel directly to rain. Condensation can also form inside. Just because it looks like it offers protection, doesn't mean it does. And it definitely doesn't mean it meets code.3. Stucco Cladding Proximity

The fact that the subpanel is one inch behind the stucco is irrelevant in terms of weather protection. Stucco is not a seal against moisture penetration.4.

California Electrical Code (CEC) and NEC

California adopts the National Electrical Code (NEC) with some state-specific amendments. The NEC is the guiding document.

NEC 312.2

Cabinets, cutout boxes, and meter socket enclosures must be suitable for the environment in which they are installed. This is a fundamental requirement.

NEC 312.2(A)

Damp and Wet Locations. In damp or wet locations, cabinets and cutout boxes shall comply with one of the following: (1) Installed to conform to 314.15 (Protection from Corrosion) (2) Equipped with a raintight or weatherproof enclosure

NEC 314.15

Requires raceways entering enclosures to be arranged to prevent water from entering the enclosure.

NEC 408.38 Switchboards, switchgear, and panelboards shall be located in dedicated spaces and protected from damage. NEC 408.36 Panelboards in damp or wet locations shall be identified for use in such locations and shall be mounted to provide minimum space between the enclosure and the wall or other supporting surface in accordance with 312.5(C). This is not an exhaustive list, but highlights the key considerations.

Is it Safe and/or Acceptable? NO. It is almost certainly NOT safe or acceptable under the CEC/NEC. The use of a Type 1 enclosure in this exterior application is a code violation and creates a significant safety hazard.

Reasons for Non-Acceptability and Safety Concerns



Water Intrusion

Water getting into the panel can cause short circuits, corrosion, equipment failure, and create a shock hazard. This is dangerous to anyone who opens the door or comes into contact with the system.

Corrosion

Moisture will corrode the components inside the panel, leading to premature failure and potential hazards.

Code Violation

As noted above, the CEC/NEC requires enclosures suitable for the environment.

Recommendations1. Replace the Enclosure

The only acceptable solution is to replace the Type 1 enclosure with an enclosure that is specifically rated for outdoor and wet location use. This would typically be a NEMA 3R, 4, 4X, or similar enclosure. This enclosure MUST be rated for the environment it will be exposed to.2.

Proper Installation

The weatherproof enclosure must be properly installed, with appropriate seals, fittings, and connections to prevent water entry. Consult the enclosure manufacturer's instructions for proper mounting and sealing. Ensure adequate space is provided behind the enclosure in accordance with NEC (see above), to prevent moisture accumulation.3.

Inspection

Have a qualified, licensed electrician inspect the installation to ensure it meets all applicable codes and is safe. They can properly identify the correct NEMA rating for the enclosure based on the actual exposure conditions.4.

Consider Relocation

If possible, consider moving the subpanel to a protected indoor location. This would eliminate the need for a weatherproof enclosure.

In Summary

The installation as described is highly likely to be a code violation and presents a safety hazard. Replacing the Type 1 enclosure with a weatherproof enclosure rated for wet locations is essential for safety and code compliance. Always consult with a qualified electrician for any electrical work and to ensure compliance with local codes and regulations. Don't take shortcuts when it comes to electrical safety. Flag for review