IEC60331-21 Wire Flame Test Chamber
Standards
IEC 60331-21
Tests for electric cables under fire conditions - Circuit integrity
- Part 21: Procedures and requirements - Cables of rated voltage up
to and including 0,6/1,0 kV
Specification
2. Cable and cable line integrity combustion test machine design
principle:
The cable and cable integrity fire tester is divided into three
parts: the combustion box, the combustion frame, and the control
box, all of which are individually movable. Each device is equipped
with casters at the bottom for easy movement and sanitation. A
device used for cables and cables that require line integrity when
using a flame with a temperature of not less than 750 ° C (control
of heat output) for individual fire test
Cable and cable line integrity combustion test machine technical
parameters:
1. Design of the combustion chamber
It is fixed to the angle iron bracket with a suitable material to
form the entire cubic combustion chamber.
Combustion chamber: inner dimensions: 3M x 3M x 3M total 27 cubic
meters.
Can be brick wall structure or steel plate structure, selected by
customers
2. Sample holder: The sample consists of two or three metal ring
supports with an inner diameter of approximately 150 mm.
3. Burning device:
(1) Blowtorch: A propane gas burner with a nominal length of 500 mm
and a width of 15 mm for a nozzle with a venturi mixer.
(2) Flow meter: air flow meter: 80L/min, propane flow meter: 5L/min
(3) The composition of the blowtorch control system: pressure
regulating valve, piezoelectric igniter, flameout device,
temperature control thermocouple,
Gas source (owned by your company), ignition device, gas pipeline,
flow meter, venturi mixer,
Blowtorch, ball valve, air line, compressed air bottle (owned by
your company)
(4) Timer: 0~99.99s/m/h can be set arbitrarily
(5) Ignition device: for automatic ignition
(6) Temperature controller: consists of two temperature monitoring
sections,
Temperature range: 0~1000°C can be set arbitrarily.
4. Line load:
(1) Test transformer: 3000VA three (2) Test voltage: AC1000V
(3) Test current: 3A
IEC60331-21 Wire Flame Test Chamber.pdf
What is a test fire and why is it important?
What Is Fire Testing? Fire testing intends to understand the
influence of a direct flame on a material or product. Companies may
analyze the effect on wiring or cable, building materials or
furnishings.
