Detailed Product Description

Network case

General distribution frame

JPX260 general distribution frame

Main technical indexes:

Frame: Integrated frame: Reliable earthing setting is matched

Alarm: It has a far-distance supervision or centralized alarm interface

Security connector board, testing connector bar

Insulation resistance: Insulation resistance between any two disjunct connecting terminals is ≥1000MΩ/500 V(DC)

Electric strength: No breakdown or arcover under 1000V(AC)/1min(45~60Hz) between any two disjunct connecting terminals

Contact resistance: Contact resistance between two tangent reeds is ≤7mΩ, terminal contact resistance between a lead wire and a terminal is ≤3mΩ

Pull-off strength: For circling connection type, it is ≥22N(diameter of leading wire is 0.4mm), that of clip connection type is ≥25N(diameter of leading wire is 0.4mm),

Fire retardant performance of plastic: Meets standards of GB/T5169.7-1985 Fig. General distribution frame

Security unit

Insulation resistance: Insulation resistances between line a and b, between line a& b and ground wire or and signal line as well as between other metal parts are ≥1000MΩ/100V(DC)

Contact resistance: Contact resistance between two tangent reeds is ≤7mΩ; Terminal contact resistance between leading wire and terminal is ≤mΩ

Defence performance of overvoltage and overcurrent: Direct current breakdown voltage Udc=230; Pulse breakdown voltage Umax≤800V ( if ascent rate of voltage is 1KV/μs)

Alarm and invalidation defence performance: If earth current of line a and b of security unit reaches 2.5A(virtual data) when they get to be overvoltage, earthing should be taken in 5-15 seconds, at the same time report emergency and send alarm signals

Resistance of security unit under normal temperature: ≤22Ω, resistance difference of line a and b is ≤2Ω

Non-operating current: 100mA within an hour non-operating (when the testing voltage is 60V(DC) and environmental temperature is 40ºC

Current limiting characteristic (when the environmental temperature is 40ºC)

Current (A) operating time(S) remark

0.75          ≤5

0.75          ≤5

2             ≤0.5

3             ≤0.2

2             ≤0.5

3             ≤0.2

Fire retardant performance of plastics: Meets standards of GB/T5169.7-1985

Working environment: Working temperature: 5~40ºC

Relative humidity: ≤85%(if +30ºC), fig.: Connection tools

Atmospheric pressure: 70kPa~106kPa

Characteristics:

Double-faced frame is manufactured by special aluminum sections, it is easy to assemble and is designed in two styles of structures to get it dilatable.

Single-faced frame combines advantages of double-faces frame while saves space, all operation is carried out on obverse and is free from long jumper.

It is in full-module structure, and it is agile and easy to deploy and assemble

The general distribution frame consists of inline security connector bar, rank testing connector bar, security unit and other accessories.

It has satisfying defence performance that damages to communication equipment and personnel in machine room by overvoltage and overcurrent which are caused by thunders and other reasons can be prevented.

Overvoltage protector applies high quality gas or semiconductor tube, overcurrent protector applies high quality macromolecule PTC or ceramic PTC. These two protector operates exactly and reliably and acts rapidly. Besides it has good nonstick performance.

All plastics are fire retardant engineering plastic.

Contacting parts are gilded, silver plated, tinned, nickelplated and taken embalmment.

Alarms parts include unit, bar, and row alarming and general alarm (sound and light).

The frame owns reliable earthing system.