Dismountable steel safety shields KSR, KSR-2U, KSR-2U2, KSR-1

Protective dismantable steel shields RIZUR-KSR are designed for installation on coupling sleeves for the power cables of 6 and 10 kV aimed at localizing fires and explosions that can be caused by a dielectric breakdown tn the coupling sleeves.

The shield is used to protect coupling sleeves, mounted in the wells and on a previously mounted and operating cable lines, as well as the ones mounted in a small spaces: tunnels, channels, sewers, and on cable racks.

RIZUR-KSR-1 and RIZUR-KSR-2 are designed for operation in a moderate continental climate, under roof and inside a facility, excluding spaces with high humidity.
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Protective dismantable steel shield KSR-1, KSR-2, KSR-2U2

ТU 2733-001-12189681-2016

OOO NPO RIZUR designs and manufactures protective shields of any size in accordance with the technical requirements provided by the Customer.

Intended use and application area 

Protective dismantable steel shields RIZUR-KSR are designed for installation on coupling sleeves for the power cables of 6 and 10 kV aimed at localizing fires and explosions that can be caused by a dielectric breakdown tn the coupling sleeves.

The shield is used to protect coupling sleeves, mounted in the wells and on a previously mounted and operating cable lines, as well as the ones mounted in a small spaces: tunnels, channels, sewers, and on cable racks.

RIZUR-KSR-1 and RIZUR-KSR-2 are designed for operation in a moderate continental climate, under roof and inside a facility, excluding spaces with high humidity.

Design description

The shield consists of a base, a lid and a welded line 30х5 with holes for the coupling bolts. A half of the pipe ф102х3 with a cable fixation system (U-bolt) is welded onto the base plug.

The base and the lid are connected with a 1,0 mm space between with the help of 6 bolts and female screws M12. The space is achieved with packings on the bolts. The inside surface of the base and the lid is lined with sheet asbestos.

The sidewalls of the shield are covered by an asbestos-cement plate. From the one side of the shield there’re permanent blank covers, and from the other – combined (dismountable and non-dismountable). The shield has 2 grounding screw bolts – one on the base and one on the lid.


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NOTE! It's possible to manufacture shields of different sizes and with different mounting elements.

Technical specifications 

RIZUR KSR-2 RIZUR RSR-2M RIZUR KSR-2L
Housing Structural carbon steel 
ATsEID (asbestos-cement electro-technical arc-resistant plates) 
Sheet asbestos KAON-1
Liquid glass
Tightening clamp Structural carbon steel 
-  -
Limit value of the short-circuit current 14,5 kA 12 kA 12 kA

Marking and size of the epoxide polyurethane coupling

SE-3х150-10,
SE-3х240-10,
SP-3х150-10, SP-3х240-10 


SE-3х50-10,
SE-3х95-10,
SP-3х50-10,
SP-3х95-10 


SE-3х50-10,
SE-3х95-10,
SP-3х50-10,
SP-3х95-10 
Marking and size of the lead polyurethane coupling
SS-110 


SS-60, SS-70, SS-80, SS-90, SS-100 


SS-60, SS-70, SS-80, SS-90, SS-100 

Dimensional specifications 

Type Dimensions, mm
A Н L D2
KSR-2 219 159 1450 96
KSR-2M 219 159 1250 85
KSR-2L (light version) 240 162 1250 85
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