160
House Electrical
SECTION NINE
supply is turned off . The result is a discharge that can
reach tens of thousands of volts for a short time period .
Care should be used when working with this voltage
as current values can be quite high, as in the case of
battery cables . Shorting a battery cable to ground with
a battery at a reasonable state of charge can result in a
fire or serious personal injury from a burn .
The 12 Volt DC fuses service the interior house lighting,
ventilation fans, furnace and monitor panel . Fuses are
color coded to indicate the rated amperage .
Fuse current set points follow much of the same
electrical principle as the 120 Volt AC breakers . Using
12 Volt DC as the electromotive force can make it more
susceptible to outside influences, such as corrosion
from weathering or oxidation .
The danger from shocks with this voltage is minimized
but can still occur . A good example is when a magnetic
field is generated then collapses when the power
supply is turned off .
The result is a discharge that can reach tens of
thousands of volts for a short time period .
Care should be used when working with this voltage
as current values can be quite high, as in the case of
battery cables . Shorting a battery cable to ground with
a battery at a reasonable state of charge can result in a
fire or serious personal injury from a burn .
Blade Fuse Guide
Color
Mini
Standard
Maxi
Black
1
Gray
2
2
25
Violet
3
3
Pink
4
4
Tan
5
5
10
Brown
7 1/2
7 1/2
35
Red
10
10
50
Blue
15
15
60
Yellow
20
20
20
Clear
25
25
80
Green
30
30
30
Blue-Green
35
Orange
40
40
Mini, Standard, and Maxi Fuse Colors and Amperage
Ratings
ATC Fuse
060086B
060086c
Test Here
Blown Fuse
Good Fuse
Representation of various fuses and a circuit breaker.
Quarter is used for size comparison of fuses.
A. Manual Reset Circuit Breaker
B. Auto Reset Circuit Breaker
C. Standard Fuse
D. Mini Fuse
E. Maxi Fuse
080528e
A
B
C
D
E
Summary of Contents for Class A Gas 2020
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