PV Powered 5200 Especificações descarregar pdf (Página 39)

38 DOCR 070366-B

It is worth noting that for this example we calculated the minimum series fuse rating. However, it

may be appropriate to use the supplied 15 A fuses as long as they do not exceed the maximum

series fuse rating (provided by the module manufacturer) or the overcurrent protection require-

ments of your PV source wires. Please reference the appropriate NEC Article(s) for further discus-

sion regarding proper sizing of overcurrent protection.

Other fuse manufacturers may have compatible fuse types. The generic properties are:

• Type: PV Fuse

• Fast-acting

• Dimensions: 1 1/2” in length x 13/32” fuse diameter

• Interrupt Rating: >= 10 kA @ 600 V

• UL and CSA approval of the fuse is mandatory

4.8.5.2 String fuse replacement

4.8.5.1.2 PV fuse properties

DANGER!

String fuses shall only be replaced by a qualied professional.

Ensure no live voltages are present on PV input and AC output

circuits, and verify that the DC disconnect, AC disconnect, and

dedicated AC branch circuit breaker are in the “OFF” position,

before attempting to replace DC fuses. With a DC amperage clamp

meter, ensure that there is no current owing through the fuse to be

replaced.

PV solar arrays produce hazardous voltages and currents when

exposed to light which can create an electrical shock hazard. Using

dark opaque sheets, cover the PV solar array before tampering or

reinserting PV string fuses

WARNING!

AVERTISSEMENT!

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Figure 31: String fuse replacement procedure

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PV Powered 5200 Especificações Página 39