Grounding; Maintenance And Upkeep; Disposal - Bosch c-Si M 48 Operating Instructions Manual

22 | Grounding | Maintenance and upkeep | Disposal

7 Grounding

Particularly in exposed locations, sufficient lightning
protection is recommended. Integration into existing
lightning-protection systems must occur in observance of
current country-specific norms and regulations. The re-
spective drill holes for grounding are marked on the re-
verse side of the module frame.
Please perform the following grounding measures:
Important Notice!
„ Attachment of a fitting ring-cable socket (cable cross-
section: min. 2.1 mm²).
„ Use of a fitting fastening screw (minimum diameter:
4 mm), a self-cutting serrated washer, a spring washer
and the fitting nut.
„ Use of a fitting self-cutting screw. Two complete thread
turns of a screw must interlock with the metal.
„ Damaging contact corrosion can be avoided by using
corrosion-resistant materials.
„ Position of the grounding drill holes in accordance
with Illustrations 3 – 6.

8 Maintenance and upkeep

Minimal maintenance and upkeep effort is required in
order to maintain the optimum output of the solar mod-
ule. In the interest of optimum system output, we rec-
ommend to inspect and/or work through the following
items on a semiannual cycle:
Bosch Solar Module c-Si M 48 I Bosch Solar Module c-Si M60 I Bosch Solar Module c-Si M60 S I Bosch Solar Module c-Si P60
„ In the event of heavy or localized contamination (e. g.
with bird droppings), it is recommended to clean the
glass surface of the module with limefree water which
matches the module temperature and a soft brush. No
aggressive cleaning agents, acids or leaches may be
used.
„ The electrical and mechanical connectors must be
checked for cleanliness, durability and sound conditi-
on. Any irregularities must be remedied immediately.
„ Regular verification of the yields by the operator is
recommended.

9 Disposal

Defective or old solar modules must be appropriately
disposed of. These may not be disposed of in house-hold
waste.
Important Notice!
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Robert Bosch GmbH