PS Magazine - JUNE 1984
PS, The Preventative Maintenance Monthly
ISSUE 379
JUNE 1984
I
I
I
I
-±²³´µ¶·¸¹º»
STYLE
Breaking the Code
Each cartridge fse-tHe kind you most
oFten deal with±has a string oF letTers and num²
bers stamp³D on th³ ´rrules. µHey tell you
everything you need to know about th³ fse.
µHey'll also sometimes clue you to the NSN.
BeFOre s³nding o¶ your PN request, bump tHe
number on the F·rrUl³ against the lis¸ing in the
Master Cross ReFerence List (MCRL) Part
±.
DIMeNsION±
CodE tyP²
(inches)
¹irst is the style codeº
F02²
It tells you the fse
size and type.
F01
car³ri´gµ
F02
car³ri´gµ
-
¶ar³ri´gµ
f07
car³ri´gµ
F09
car³ri´gµ
F11
car³ri´gµ
F14
plug
-
f15
car³ri´gµ
"F
car³ri´·µ
F19
Kni¸µ bla´µ
,_
K¹i¸µ Bla´µ
F21
Kni¸µ bla´µ
F2º
Kni¸µ
bla´µ
F27
car³ri´gµ
Fº8
»ar³ri¼g½-
F29
car³r¾´gµ
F3¿
car³ri´gµ
F36
Àink
F3Á
Âink
F38
Àink
F39
Âink
F40
Âink
F50
Âink
F5Ã
In´iÄa³År
alarm
F60
car³ri´gµ
±
Ã
x
.25
1Æ25
x
Æ25
1Æ125
x
Æ25
²
1Æ5
x
Æ406
ÃÇ5
x
È406
ÃÆ5
x
Æ406
ÃÈ281
x
ÃÉ28Ã
2Æ0
x
Æ562
3Æ0
x
Æ812
5Ê8Á5
x
1Æ312
Z.125
x
ÃÆËÌ
8Æ625
x
2Æ406
10Æ3Á5
x
2ÆÍÎ_ÏÐ
3Æ0
x
Æ406
4È5
x
Ç406
³
ÑÆ0
x
Æ812
Ã0Ò0
x
Æ8Ã2
2Æ5
x
Æ562
2È5
x
È56Ó
3Æ0
x
Æ812
3Æ5
x
ÃÊ06Ô
1Æ75
x
1Æ312
ÃÕ406
x
Ê406
Ã.672
x
Æ406
ÃÆ5
X
È406
[
Blow time is re»r³sent³d
by
3
l³tt³rs.
A
is normal
(normal interrupting capaci²
ty).
b
is time lag (slow
VoltagE
ratINg
CurrENt
ratI±G
blow).
C
is ¼st (very high
inte½rupting capacity). Al²
way¾ substitUte an A ¿se Àr
an A, a B fse FOr a B and
a C fse FOr a C.
250V
means tHe fse is
rat³d at250 volts. Rememb³r,
you can us³ a fse with a
higher voltage rating than
the original only iF the amp
rating is the same.
1 Y³A
is the amp rating. It
shows the max amount oF
consÁnT current the ¿se link
will carry witout blowÂing.
r:±
¹inally, thÃ
S
tells you the
²
´rrules are silverÄcoaTed.
52
No
S
,
no silver. Plain ´rÅ
rules are preF·rred because
they don't tarnish or corrode
so easy.
JUN 84
B
E´TR cµ¶fUL
WHE
us·NG
¸¹vºl»¼½ ¾O¿ÀD
ÁÂÃÄÅÆ ÇHÈ ÉMPÊ
ËÌÍ ÎÏÐÑÒ
ARe
ÓÔÕÖ× ØÙÚ
Û
ÜÝmÞ ßàá
BLOW-TIME
•´.
âãä åæç èéZê
ëìí îïðW ñòóôõ
ar¼ nOT. h½¾¿
ÀÁÂ
ö÷øpùúû üý
þÿĀāĂă
ĄąĆKćĈĉ ĊċČ
D²ÖIGNA×IØN
ÙHÚRÛÜÝÞRIßàáâã
äIMåNæIçNè
(²³´HeSµ
3A
B
ßlÅwéaijing
3Aê
NÅrmal
1 Ã/4 lÅng
x
1/4 ´ëaì
3Aê ßlÅíîlÅ
ßlÅwéaijing
4Aê
NÅrmal
4Aê ßlÅïîlÅ
ßlÅwïaijing
1 1ð4 lÅng
x
9ð32 ´iaÆ
ñAê
NÅrmal
5Aê ßòóïîòÅ
ßlÅwôaijing
1 Ã/2 lÅng
x
13õ32 ´iaÆ
ËAê
faö³íaijing
1 lÅng
x
1/4 ´iaÆ
A
B
c
Faö³÷aijing
Aêc
Faö³øaijing
1 Ã/4 lÅng
čx
1/4 ´iaÆ
AêX
faö³ïaijing
1 lÅng
x
1ð4 ´iaÆ
FNù
Faö³éaijing
1 Ã/2 lÅng
x
Ã3/32 ´iaÆ
MúÀ
ßlÅwéaijing
MúX
ßlÅwïaijëng
Ď
1/4 lÅng
x
1ð4 ´iaÇ
Mûh
faö³ïaijing
FďĐe Care
Ænce you've got the right fs³, you want to mak³ sure it lasts a long time.
BeFÇre you slip it into a hold³r, turn the circuit oFÈ. ÉF you don't, you could
cr³ate an arc. µhat burns th³ ´rÊUles
R³´=µ¶·¸¹º»¼½
or terminals and limits good contact by
iËcr³asing r³sistance.
Shine up pitted or dirty TerÌinals
witH em³ry cloth.
Kee» clips tight. It should take a pretÍ
ty good push to seat the new fseÎ
Squ³eze loos³ cli»s togeth³r. ÉF that do³sn't work, r³»lace 'eÏ.
Watch out For signs oF overheaÐing or corrosion on th³ ´rrUl³s.
JuN Ã
53
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