Safety device for preventing reverse flash flash-S-“”DC-VR

Safety device for preventing reverse flash flash
Showden Co., Ltd.

Showden Co., Ltd.'s Response Status

Response Rate

100.0%

Response Time

117.8hours

About This Product

■Safety device for preventing reverse flash by neutralizing wire ring and insulating wire ringThis is a reverse flash protection safety device based on "Electric power communication protector (for communication cables)" (Electric power standard D-205) and "Electric power safety communication regulations" (JEAC6011). It meets various requirements for installation in information transmission systems and has highly reliable protection performance.

■High protection performanceIt uses a neutralizing wire ring and insulating wire ring method to protect against potential increases caused by both commercial frequencies and lightning surges, and maintains high protection performance. Additionally, a highly reliable gas arrester with large current capacity is used.

■Improve maintenance work efficiencyIt has a unit structure with a gas arrester, terminal board, etc. mounted on the front, making installation and maintenance easy.

■Features・Various circuit methods available depending on the type of circuit used
・Compliant with power standard D-205

■Installation precautions- For external cables and remote grounding wires, use insulated wires with a withstand voltage that matches the potential rise value.
・Please use insulated wire of 22mm2 or more for remote and in-house grounding wires. Please connect the aluminum sheath of the outside cable to the remote grounding terminal, and the aluminum sheath of the local cable to the local grounding terminal.
・If the premises of the electrical station is large and the communication equipment is far from the place where the protector is installed, and there is a risk that the cable installation within the premises may be affected by lightning surges or switching surges, install cables in MDF, etc. in the communication equipment room. Please install a safety device.

■Caution・The commercial withstand voltage value is displayed in the model name S-.
・Commercial withstand voltage: Between the ground and between the primary and secondary terminals, the value in parentheses is 1 minute.
・Insulation resistance: Measured at 500V DC between ground and between primary and secondary terminals, and should be 100MΩ or more.

Model
There are 6 models for this product.

Product
Safety device for preventing reverse flash flash

Handling Company
Showden Co., Ltd.

Categories

Safety Devices

Safety Devices

Surge Countermeasures

Lightning Arresters

Surge Countermeasures

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6 Models of Safety device for preventing reverse flash flash

Click on the part number for more information about each product

Part Number	Price (excluding tax)	Purpose	Transmission frequency band (Hz)	Transmission level	Impedance (Ω)	DC resistance (single wire) (Ω)
S-“”DC-VR	Available upon quote	Public/DC signal/communication lines (compatible with general telephone lines)	DC, 16, 0.3~3.4k	+10dBm	600±20%	60 or less
S-“”DC-CVR	Available upon quote	DC signal/carrier line (corresponds to carrier line with superimposed DC voltage)	DC, 16, 0.3~160k	+10dBm	150±20%	60 or less
S-“”DC-PCM	Available upon quote	PCM carrier line (compatible with PCM carrier line with superimposed DC voltage)	DC, 50k~2M	4Vo-p	110±20%	60 or less
S-“”DC-INT	Available upon quote	ISDN line (compatible with ISDN line)	DC, 10k~2M	+10dBm	110	60 or less
S-“”AC-VR	Available upon quote	AC signal/communication line (compatible with AC signal (teleconverter) line)	16, 0.3~3.4k	+10dBm	600±20%	-
S-“”AC-CV	Available upon quote	AC signal/carrier line (corresponds to carrier line where DC voltage is not superimposed)	0.3~160k	+10dBm	150±20%	-

Click on the part number for more information about each product

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About Company Handling This Product

Showden Co., Ltd.

Response Rate

100.0%

Response Time

117.8hrs

Japan

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Safety device for preventing reverse flash flash Showden Co., Ltd.

Showden Co., Ltd.'s Response Status

About This Product

■Safety device for preventing reverse flash by neutralizing wire ring and insulating wire ring

■High protection performance

■Improve maintenance work efficiency

■Features

■Installation precautions

■Caution

6 Models of Safety device for preventing reverse flash flash

S-“”DC-VR

S-“”DC-CVR

S-“”DC-PCM

S-“”DC-INT

S-“”AC-VR

S-“”AC-CV

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About Company Handling This Product

Related search keywords

Safety device for preventing reverse flash flash
Showden Co., Ltd.