跳至主要内容

PG-NF Needle Flame Test Apparatus compares with IEC60695-5-11

1. Application scope
The IEC60695-5-11 specifies a needle test to simulate the effect a small flame which may result from fault conditions, in order to assess by a simulation technique the fire hazard. It is applicable to electro-technical equipment, its sub-assemblies and components and solid electrical insulating materials or other combustible materials. 


2. Description of the test apparatus
1) Burner: the burner to produce the test flame shall consist of a tub at least 35mm long with a bore of 0.5mm±0.1mm and an outer diameter not exceeding 0.9mm.The burner is supplied with butane or propane gas having gas having a purity of at least 95%. 
PG-NF: The burner is made by stainless steel, the size is Φ 0.5mm ± 0.1mm, outer dia.: ≤Φ 0.9mm, Length: 35mm. 

2) Flame: With the axis of the burner in the vertical position, the gas supply is adjusted so that the length of the flame is 12mm±1mm, when viewed in subbdued light against a dark background. The test time for the temperature to increase from 100℃±5℃ to 700℃±3℃ shall be 23.5s±1.0s.
PG-NF: The burner angle can be adjusted at 450 or 900. The flame height is 12mm ± 1mm (with height gauge), the background is black, the flame requirement is rising time from 100℃±2℃ to 700℃±3℃ should within 23.5s±1s.

3) Lab chamber: the lab chamber shall have an inside volume of at least 0.5m3. The chamber shall provide a draught-free environment, whilst allowing normal thermal circulation of air pass the test specimen. The chamber shall permit observation of the test in progress. The inside surfaces of the wall shall be a dark color.
PG-NF: The working dimension is 0.5CBM and made by stainless steel. The equipment with a view-window made by stalinite. 

4) Thermocouple
A sheathed fine wire type K (NiCr/NiAl) with an outer sheath diameter of 0.5mm.
PG-NF: Thermocouple: Φ0.5mm K type

5) Severities
Preferred values of duration of application of test flame are as following: 5s, 10s, 20s, 30s, 60s, 120s
PG-NF：Burning duration: 0-999.9s±0.1s auto record, manual pause

3. Evaluation of test results
The test specimen is considered to have satisfactorily withstood the needle flame test if one of the following situation applies:
a. There is no flame and no glowing of the test specimen and no ignition of the specified layer or wrapping tissue.
b. Flames or glowing of the test specimen and surrounding parts extinguish within 30s after the removal of the needle flame. Also the surrounding parts have not burnt away completely and there has been no ignition of the specified layer or wrapping tissue. 

See from the comparison, PG-NF needle flame test apparatus completely meets the requirement of IEC60695-5-11. Meanwhile, Pego provides the third-Lab Calibration Certificate authorized by CNAS. Welcome to contact us to get more information: sales@pegotester.com
标签：

评论

发表评论

此博客中的热门博文

vertical impact hammers

The vertical impact hammer is designed according to IEC60068-2-75 test Ehc, the hammer consists by a striking element which falls freely from rest through a vertical height on to the specimen surface held in a horizontal plane, and the fall of the striking element shall be along a guideway, the guideway shall not rest on the specimen and the striking element shall be free of the guideway on the striking the specimen , the mass of striking element is equal to equivalent mass . 2J striking element equip with Φ 40 mm*4 71 mm guideway, 5J striking element equip with Φ6 8 mm*3 85 mm guideway, 10J striking element equip with Φ8 9 mm* 337 mm guideway, 20J striking element equip with Φ10 8 mm* 520 mm guideway, 50J striking element equip with  Φ12 9 mm* 650 mm guideway. 
发表评论
阅读全文

JIS D0203 rain nozzle and spray nozzle test chamber

https://www.pegotester.com/JISD0203_rain_and_spray_test_chamber.html The spray nozzle and rain nozzle test chamber is designed to meet the test requirements of JISD0203 R1/R2 rain test and S1/S2 spray test. The rain nozzle has 2 holes and spray nozzle has 40 holes. Type Symbol Test Purpose Test Method Rain Test R1 Auto parts against water direct contact water pressure: 0.01Mpa, water flow: 1.9L/min, water temperature: ordinary temperature, test time: 10min R2 Auto parts against rain or spray water   indirect contact water pressure: 0.03Mpa, water flow: 3.2L/min, water temperature: ordinary temperature, test time: 10min Spray Test S1 Auto parts against rain or jet water direct contact water pressure: 0.10Mpa, water flow: 24.5L/min, water temperature: ordinary temperature, test time: 30min S2 Auto parts against riptide water pressure: 0.30Mpa, water flow: 39.2L/min, water temperature: ordinary temperature, test time: 1h  
发表评论
阅读全文

The relationship between standards IEC62262 and IEC60068-2-75

  The IK code is a coding system to indicate the degree of protection provided by an enclosure against harmful external mechanical impacts. The standard IEC62262 defines the impact energy corresponding to different IK codes. In general, the degree of protection applies to the complete enclosure. If parts of the enclosure have differing degrees of protection, the latter shall be indicated separately. IK00 IK01 IK02 IK03 IK04 IK05 IK06 IK07 IK08 IK09 IK10 IK11 0 0.14J 0.2J 0.35J 0.5J 0.7J 1J 2J 5J 10J 20J 50J IK00 - no protection IK01 - withstands 0.14J impact force (equivalent to the impact of an object weighing 0.25KG falling from a height of 56mm on the surface) IK02 - Withstand 0.2J impact force (equivalent to the impact of an object weighing 0.25KG falling from a height of 80mm on the surface) IK03 - Withstand 0.35J impact force (equivalent to the impact of an object weighing 0.2KG falling from a height of 140mm on the surface) IK04 - Withstand 0.5J impact force (equivalent to t...
发表评论
阅读全文