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12kV (H)RW12–12 Polymeric Silicone Rubber Composite Expulsiont Drop-out Fuse Cutout

 
(H) RW12-12 (F) outdoor high voltage AC drop fuse (hereinafter referred to as "fuse") is applicable to the
outdoor overhead distribution systems with a rated frequency of 50Hz and rated voltage of 10kV. It is used
as a protective element of circuit or electrical equipment in case of overload or short circuit fault of a power
system.
When traveling normally, the fuse is connected in series in the power line, the fuse is in a tensioned state,
and the movable joint is locked. When the line fails, the fault current causes the fuse to blow, the movable
joint is released, the fuse tube is quickly dropped, and the circuit is cut off, which plays a role in safety
protection for the maintenance of the line and equipment. The load type fuse is added with elastic contact
and arc extinguishing cover on the basis of the ordinary type, which is used to open and close the load
current in the power system.
 
Availability:
Quantity:
  • RW12-12

  • DGG

1. The characteristics and advantages of the silicone rubber type drop-out fuse cutout are worth considering when looking for reliable protection for electrical systems. This type of fuse is designed to provide efficient and effective protection against overcurrents and short circuits, ensuring the safety and stability of the electrical network.


2.  .One key feature of the silicone rubber type drop-out fuse cutout is its durability and resistance to harsh environmental conditions. This makes it suitable for use in a wide range of applications, including outdoor installations where exposure to moisture, dust, and other contaminants is a concern  .


3. Additionally, the design of the drop out fuse cutout allows for easy installation and maintenance, reducing downtime and ensuring quick and efficient replacement when necessary. This can help minimize disruptions to the electrical system and prevent costly repairs or replacements.


4. Overall, the silicone rubber type drop-out fuse cutout offers a reliable and cost-effective solution for protecting electrical systems from overcurrents and short circuits. Its durability, ease of installation, and low maintenance requirements make it a practical choice for ensuring the safety and reliability of electrical networks.


No.

Item

Unit

Parameters

1

Rated Frequency

Hz

50/60

2

Rated Voltage

kV

12

3

Rated Current for Fuse of the same family

A

≤100

≤200

4

Rated Breaking Current

kA

12.5

16

5

Rated Short-time Power Frequency

Withstand Voltage

To Earth (Dry/Wet)

kV/

min

42/1

Fracture (Dry/Wet)

48/1

6

Lightning Impulse Withstand

Voltage

To Earth

kV

75

Fracture

85

7

Creepage Distance

mm

Not less than 372(e-level)

8

Mechanical Life

Times

500

9

Usage Life Span

Years

Not greater than 20

If the altitude is over 1000m,the rated insulation level should be modified as appropriate


USAGE: ENVIRONMENTAL CONDITION

The insulator is made of high-strength ceramic or imported silicone rubber insulation material, with

large creepage distance design, pollution resistance and environmental adaptability, and excellent

insulation performance, which meets the requirements of long-distance travel in high sea wave

areas.

2. The upper contact adopts a silver pair design, and the contact stainless steel spring provides contact

pressure to ensure good conductive contact, and the contact resistance is very small, no more than

300mW.

3. The lower contact adopts a silver pair design, which provides a pair of current paths and is not

connected with the bare foot of the hinge shaft.

4. The fuse tube adopts an epoxy phenolic glass cloth tube with fibre lining with a special

anti-ultraviolet coating, which has excellent anti-ultraviolet performance.

5. The parallel groove coupling is made of cast brass. Even if the dimensions are inconsistent, the

connection becomes very simple due to the provision of two conduits.

6. The trunnion is made of high-strength cast bronze and silver plated on the surface. It is pressed on

the surface of the hinge to ensure that the closing is aligned with the fuse tube.

7. The design of the baffle fully meets the rapid separation of the end, the cable strand pops up quickly,

and the force transmitted to the fuse can be reduced when closing.

8. The collar joint ensures reliable tripping after cutting off.

9. The rated current of the fuse of the same family is large, up to 200A, and the breaking capacity can

be strong, up to 16A.

10. According to the user's requirements, a fixed device for power inspection and grounding can be

added to facilitate the user's power inspection and grounding operation.


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