Photovoltaic bracket bolt torque test

How to ensure the reliability of nut bolts & clamps?

Proper care must be taken while tightening of nut bolts and clamps and necessary investigations must be conducted while installation. 3. O&M: A regular inspection practice must be incorporated for corrosion, nuts and bolts strength and periodic tightening to ensure the reliability of module mounting structures.

What is the maximum voltage a photovoltaic module can run?

For roof use, the maximum system voltage must not exceed 600V according to National Electrical Code. Under normal conditions, a photovoltaic module is likely to experience conditions that produce more current and/or voltage than reported at standard test conditions.

Does a photovoltaic module produce more voltage?

Under normal conditions, a photovoltaic module is likely to experience conditions that produce more current and/or voltage than reported at standard test conditions. The requirements of the National Electrical Code (NEC) in Article 690 shall be followed to address these increased outputs.

Should a purlin be rigidly connected to a torque tube?

Purlin should be rigidly connected to the torque tube such that the torque tube can achieve rigid rotation of the Purlins and eventually the panels. We observed that the connection was badly articulated and has resulted in tearing and enlargement of the purlin hole, thus resulting in a “wobble” of the purlin on the tube.