IEC60695-11-5 Needle Flame Test Apparatus
Product information:
The Needle Flame Tester consists of a Ф0.9mm needle-shaped burner
that tilts with the angel of 45°and provide it with butane gas. The
fire hazard of the equipment when there is flammule inside the
equipment that caused due to the fault condition is assessed by
whether the specimen can be ignited or the combustion time and
length. This tester conforms to the standard requirement of
IEC60695-11-5,IEC60335-1.
The Needle Flame Tester is suitable for the research, production
and quality testing department of lighting equipment, low-voltage
apparatus, household appliance, machine tool electric appliance,
electrical machine, electric tool, electronic instrument,
electrotechnical instrument, electrical connector, electrical and
electronical equipment and other components. It is also suitable
for insulating material, engineering plastics or other solid
combustion material industry.
Model specification and technical parameters (Optional for touch
screen NF-2):
Parameter/ model | NF-1 |
Working voltage | 220V/50Hz |
Timing device | 9999X0.1S |
Combustor | Inner boreφ0.5mm ± 0.1mm ,OD ≤φ0.9mm ,L ≥ 35mm,stainless steel |
Combustion angle | tilt 45°( testing ) or vertical ( when adjust the height of the
flame) |
Height of the flame | 12±1mm adjustable(with flame height gauge) |
Gas category | 95% butagas ( can use the bottled lighter gas) |
Range of temperature test | 0~1000℃ |
Flame warming requirement | From 100°to 700°,time for standard values within 23.5S±1S |
Temperature thermocouple | φ0.5 armour nickel-chromium/nickel aluminum wire K-Thermocouple |
Work shop | 0.5 cube,staunless steel case,black yogon
background,(customizable0.75 cube,1cube) |
Testing process | Test procedure automatic control,independent air draft |
Volume size adjustment | Flowmeter adjustment |
Conforms to standard | GB4706.1-2005,GB5169.5-2008,IEC60695-11-5,IEC60335-1 |
Includes:
A white Pine Test Board and five Sheets of Tissue Paper
A flame height gauge
Consumables:
White Pine Test Board and Tissue Paper
Thermocouple Type K and Copper Block
Scope:
This part of IEC 60695 specifies a needle-flame test to simulate
the effect of a small flame which may result from fault conditions,
in order to assess by a simulation technique the fire hazard.
It is applicable to electrotechnical equipment, its sub-assemblies
and components and to solid electrical insulating materials or
other combustible materials.
One of the responsibilities of a technical committee is, wherever
applicable, to make use of basic safety publications in the
preparation of its publications.
General description of the test:
The test is performed to determine that, under defied conditions,
the test flame does not cause ignition of parts, or that a
combustible part ignited by the test flame has a limited duration
of burning or a limited extent of burning, without spreading fire
by flames or burning or glowing particles falling from the test
specimen.
This test determines the effects on the test specimen of a small
flame such as may arise from other ignited components and the
relevant product specification shall specify the duration of flame
application and the criteria for acceptance.
Description of the test apparatus
Burner:
The burner to produce the test flame shall consist of a tube at
least 35 mm 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 a purity
of at least 95%. There shall be no air admitted to the burner tube.
Flame:
With the axis of the burner in the vertical position, the gas
supply is adjusted so that the length of the flame is 12 mm±1 mm,
when viewed in subdued light against a dark background (see Figure
1a). The flame shall be confirmed using the apparatus and procedure
detailed in Annex A. The test time for the temperature to increase
from 100℃±5℃ to 700℃±3℃ shall be 23.5s±1.0s.
