Be aware of the fact that your boat’s hull is not a ground path.
Never ground any
electronics to the hull
. Use grounding blocks that are provided.
Grounding com-
ponents to the hull may result in hull damage by electolysis
. make sure your
battery terminals are kept clean at all times. make sure that no electrical connec-
tions are in an area of your boat that could come in contact with water.
If you are adding any accessories to your boat, insulate the accessory to avoid phys-
ical contact with the aluminum in your boat, if the accessory is manufactured from
a dissimilar metal.
Galvanic Series of Metals
The metals in the chart (below) range from the least Noble (anode active) to the
most Noble (cathode Passive). combinations of any of them will show you what to
expect relative to active and Passive corrosion.
This information is important to know when adding or replacing hull fittings: use
metals that are close to each other in the galvanic series. The best way to avoid cor-
rosion is to use genuine replacement parts. When adding accessories not supplied
by us, consult your dealer regarding selection and proper installation.
least Noble (anode-active)
1.
Zinc
2.
Galvanized steel or galvanized iron
3.
aluminum
4.
cadmium
5.
mild steel
6.
Wrought iron
7.
cast Iron
8.
Ni-resist
9.
Type 304 Stainless Steel
10.
lead
11.
Tin
12.
manganese bronze
13.
Naval brass (60% copper-39% zinc)
14.
Nickel (active)
15.
Yellow brass (65% copper-15% zinc)
16.
admiralty brass
17.
aluminum bronze
18.
red brass (85% copper-35% zinc)
19.
copper
20.
Silicon bronze
21.
Nickel (passive)
22.
Hastelloy c
most Noble (cathode-Passive)
5.7
E
L
E
C
T
R
IC
A
L
S
y
ST
E
M
Lund-05.indd 7
7/9/10 1:50 PM
https://www.boat-manuals.com/
