The DC power surge protector is used to prevent damage caused by lightning overvoltage and transient overvoltage to the DC power system and electrical equipment, and to protect the safety of equipment and users. Applicable to all kinds of DC power systems, such as secondary power supply output, DC power distribution screen and various DC power equipment.
The DC power surge protector is used to prevent damage caused by lightning overvoltage and transient overvoltage to the DC power system and electrical equipment, and to protect the safety of equipment and users. Applicable to all kinds of DC power systems, such as secondary power supply output, DC power distribution screen and various DC power equipment. Today, Xiaobian will introduce you to the classification of DC power surge protectors according to the working principle:
It is understood that according to its working principle, SPD can be divided into voltage switch type, voltage limit type and combination type.
(1) Voltage switch type SPD. In the absence of transient overvoltage, it exhibits high impedance. Once it responds to lightning transient overvoltage, its impedance mutates to low impedance, allowing lightning current to pass through, also known as "short-circuit switch type SPD".
(2) Pressure limiting SPD. When there is no transient overvoltage, it is high impedance, but as the surge current and voltage increase, its impedance will continue to decrease, and its current and voltage characteristics are strongly nonlinear, sometimes called "clamped SPD".
(3) Combined SPD. It is a combination of a voltage switching type component and a voltage limiting type component, which can be displayed as a voltage switching type or a voltage limiting type or both, depending on the characteristics of the applied voltage.
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Flange is an element connecting pipe to pipe, which used for connecting one pipe end to another. Equipment import and export for two devices is also connected to each other by a flange, gasket and bolt as a group of combined sealing structure of detachable connection. The flange is used in pairs, low-pressure pipeline can use Threaded Flange, pipeline pressure above four kilograms should use welding flange. Flange with different pressure is attached with different bolt.
Product Name
Flange
Items
Plate, Welding Neck, Slip on, Blind, Lap joint, Threaded Flange
Standard
ANSI
ANSI B16.5 ASME B16.47 series A/B
DIN
DIN
GOST
GOST 12820-80
EN
EN1092-1:2002
JIS
JIS B2220-2004, KS D3576, KS B6216 KS B1511-2007 JIS B2261; JIS B8210
BS
BS4504 BS10 Table D/E
Material
ANSI
SS 304/304L, 316/316L
DIN
SS 304/304L,316/316L
GOST
SS 304/304L,316/316L
EN
SS 304/304L,316/316L
JIS
SS 304/304L, 316/316L
BS
CSRST37.2;S235JR;C22.8;Q235SS 304/304L,316/316L
Pressure
ANSI
Class 150, 300, 600, 900, 1500 2500lbs
DIN
PN6,PN10,PN16,PN25,PN40,PN64,PN100
GOST
PN6,PN10,PN16,PN25
EN
PN6,PN10,PN16,PN25,PN40,PN64,PN100
Slip On Flange,Astm Slip On Flange,Forged Slip On Flange,Stainless Steel Slip On Flange
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