8 checking the fuse holders, 9 checking the bolted, clamp and plug connections – SMA SSM8-21-BS User Manual

Page 47

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SMA Solar Technology AG

10  Maintenance

Installation Manual

SSMxx-21-IA-BS-JP-en-20

47

Procedure:

2. Check whether the warning labels on and inside the device are damaged or missing.

Replace warning labels if damaged or missing. Select a warning label that is correct for the product version.

3. Check that the cover latches are undamaged and securely in place.

If the cover latches are damaged or loose, they must be replaced.

10.8 Checking the Fuse Holders

2. Check the fuse holders for discoloration or changed appearance.

If they are discolored or changed in any way, contact the SMA Service Line.

3. Ensure that each fuse holder opens and closes properly.

10.9 Checking the Bolted, Clamp and Plug Connections

2. Ensure that the bolted connections of the power cables are securely in place.
3. Check whether there is any discoloration or change in appearance of the bolted connections at the insulation or the

terminals.
If the bolted connections and terminals show discoloration or a changed appearance, replace them.

4. Ensure that all connectors are intact and securely in place.

10.10 Checking the Surge Arrester for the DC Main Cable

2. Check whether the ready indicator on the surge arrester is red.

If the ready indicator is red, replace the protection module.

E

86-0512

Positive terminal (L+)

F

86-101700.02*

Three labels:
Risk of electric shock from active power source
Risk of electric arc
Risk of burns due to hot components

* Material number of the label sheet with all warning labels for all product versions

1.

'$1*(5

Danger to life by electric shock or electric arc if live components are touched

• Disconnect the Sunny String-Monitor from voltage sources (see Section 8, page 41).

1.

'$1*(5

Danger to life due to electric arcs when opening the fuse holders

• Only open the fuse holders in the Sunny String-Monitor when the power is switched off.

1.

'$1*(5

Danger to life by electric shock or electric arc if live components are touched

• Disconnect the Sunny String-Monitor from voltage sources (see Section 8, page 41).

1.

'$1*(5

Danger to life by electric shock or electric arc if live components are touched

• Disconnect the Sunny String-Monitor from voltage sources (see Section 8, page 41).

Position SMA order number

Designation

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