Carultch
Senior Member
- Location
- Massachusetts
To comply with 2014 & pre-2019 of 2017 rapid shutdown, it is common to lay inverters nearly flat, and mount adjacent to the array. For shading reasons, it is preferable for these to be at the north edge of the array, which inevitably puts pressure on the design decision to put these close to the edge of the roof.
The question is, assuming structural integrity is not a concern, how close can the inverter be to the edge of the roof, regarding safe maintenance practices?How much space minimum is required for the human body plus a safety margin, does one need for safely working on the roof, given that there is no guardrail or sufficient parapet along the edge?
NEC110.26, doesn't have a "condition 4", for an unprotected roof/deck/platform edge. The design in question has only 6 ft from the edge surface of the inverter to the roof edge, and I have an instinctive feeling that it wouldn't be safe.
The question is, assuming structural integrity is not a concern, how close can the inverter be to the edge of the roof, regarding safe maintenance practices?How much space minimum is required for the human body plus a safety margin, does one need for safely working on the roof, given that there is no guardrail or sufficient parapet along the edge?
NEC110.26, doesn't have a "condition 4", for an unprotected roof/deck/platform edge. The design in question has only 6 ft from the edge surface of the inverter to the roof edge, and I have an instinctive feeling that it wouldn't be safe.