Astronergy CHSM6612M Installationshandbuch - Seite 11
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4.2 Grounding
4.2.1 The grounding requirements must be checked in accordance with the applicable
regulations and standards before work is started.
4.2.2 Use the marked 5.5 mm grounding holes to ground the anodized frame. Use one M5 nut,
two M5 cut washers, one M5 plain washer, one M5 spring washer, and one M5 bolt and
the copper wire. All nuts, bolts, and washers are type M5 and should be made of
stainless steel (Fig. (n) ).
4.2.3 Put the bolt through the cup washer and wrap the copper wire around the bolt. (Note that
the copper wire cannot be attached directly to the aluminum.)
4.2.4 Put the bolt through the cut washer and then through the hole in the aluminum frame.
4.2.5 Add the spring washer and nut on the other side of the bolt and tighten to secure all
parts. The tightening torque should be 210±20 N•cm.
4.2.6 Approve the use of UL-467 certified bonding and grounding devices, including Burndy
(formerly Wiley Electronics) Washer Electrical Equipment Bonding (WEEB) and similar
devices, such as barbed washers, that meet the requirements of UL-467 as suitable for
electrical bonding and grounding PV modules to PV mounting systems.
5 Maintenance
5.1 Regularly carry out a visual inspection for dirt, dust, bird dropping, leaves, and other detritus
covering the modules.
5.2 If snow is present, a soft-bristled brush with soft bristles may be used to clean the surface of
the modules.
Chint Solar (Zhejiang) Co., Ltd. | Add:1335 Bin´an Road, Binjiang District, Hangzhou | P.C: 310053
Tel: 0086-571-5603 1888 | Fax: 086-571-5603 2316 | Website: http://energy.chint.com/
(n)Grounding the aluminum frame with copper wire