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 AC
DECLINE HIGH-VOLTAGE FUSES OF OUTSIDE
Many types of
ac decline high voltage fuses of outside such as RW3-10, RW7-10, RW10-10(F),
(H)PRWG1-10(F) and so are under way in our corporation, adopting to
transmission lines of 10～35kV system and overload or short-circuiting
protection of transformer. The pole material of RW10, HPRWG1-10 type
fuses is polymer. It features high pollution resistance, low weight
and toughness.
The product is made of isolation pole, touching conductor and fuse
bushing, and the technic specifications meet with national standard
JB/DQ2139 and GB15166.3.
1 Designation of Type Letters
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2 RW3-10、RW7-10、RW9、RW12
type outside decline high-voltage fuses
The product adopts to transmission lines of 10kV system and overload
or short-circuiting protection of transformer. It is made of isolation
porcelain, touching conductor and fuse bushing, The conductor of electricity
uses die-casting or punch moulding , and the connection ends use tinning
arts and crafts. The main part of RW3 type fuse is copper casting.
The main part of RW7, RW9 and RW12 type fuses is punch moulding. It
features simple structure, high pollution resistance, high cautery
resistance , long creep distance and long life.
The technical specifications meet national standard JB/DQ2139"technical
rules of ac decline high-voltage fuses of outside". The technical
parameters are given in Tab 1.
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Tab 1. Technical data of
RW3-10、RW7-10 type
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Type code
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Rated voltagekV
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Rated currentA
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Perm.voltage oflighting
impulsekV,max.
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Perm. a.c.Voltage,
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Rated breakcapacity
MVA
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（H）RW3-10/100A
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10
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100
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75
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90
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42
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100
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20
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（H）RW3-10/200A
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10
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200
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75
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90
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42
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100
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20
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RW7-10/100A
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10
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100
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75
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90
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42
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100
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20
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RW7-10/200A
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10
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200
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75
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90
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42
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100
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20
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RW9-10/100A
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10
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100
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75
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90
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42
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100
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20
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RW9-10/200A
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10
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200
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75
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90
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42
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100
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20
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RW12-10/100A
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10
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100
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75
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90
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42
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100
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20
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RW12-10/200A
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10
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200
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75
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90
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42
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100
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20
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