AS/NZS 5033:2005
$70.20
Installation of photovoltaic (PV) arrays
Published By | Publication Date | Number of Pages |
AS | 2005-05-19 | 81 |
Specifies electrical installation requirements for PV arrays with an open circuit voltage of up to 600 V d.c. or up to plus or minus 600 V with respect to earth.
Scope
This Standard sets out the general installation requirements for photovoltaic (PV) arrays with d.c. open circuit voltages up to 600 V between positive and negative conductors or up to (600 V with respect to earth and a maximum power of 30 kW.
This includes the following PV array configurations (refer to Figures 1.1 and 1.2) – Single string of modules.
Multi-string PV array.
PV array divided into several sub-arrays.
Direct current systems, and photovoltaic systems in particular, pose some hazards in addition to those derived from conventional a.c. power systems, including the ability to produce and sustain electrical arcs with currents that are not much greater than normal operating currents. This Standard addresses the safety requirements arising from the particular characteristics of photovoltaic systems. A discussion of those characteristics is presented in Appendix A.
Although this Standard does not cover PV array systems with a power greater than 30 kW, similar principles can be used for such systems.