T 03

Resistance to heat and fire


 
PTL Glow-Wire Test Apparatus
to determine the fire resistance by the fire hazard test.
Test apparatus according to IEC 60695-2-10 :2000-10,
for glow-wire flammability tests for end-products (IEC 60695-2-11), for glow-wire flammability index tests method for materials GWFI (IEC 60695-2-12) and for glow-wire ignitability tests for materials GWIT (IEC 60695-2-12).
Standard outfit:
1 glow-wire loop of nickel-chromium, with clamping mechanism,
1 carriage to be moved by hand, with multiple adjustable holding device for the specimen,
1 rail system with ground running surfaces,
1 pair of fine ropes with weights for the contact force of 1 N,
1 indicating device for the depth of penetration, with maximum pointer and stop,
1 scale to measure the flame height, multiple adjustable,
1 high current isolating transformer to heat the wire loop, with series connected vari-able ratio transformer, to set the temperature up to 960 C,
1 miniature jacket thermocouple type K (NiCr/NiAl), with plug almost free from thermo-electric voltage and with compensating lead,
1 temperature indicating instrument to indicate the temperature of the glow-wire loop, with digital display, measuring range 0...1000 C, class 0.5, can be readjusted, with compensation of the ambient temperature,
1 housing, desk shaped, with all necessary electrical components, with safety switch and 2 keys.
Design:
Testing device mounted on the housing of sheet steel, papyrus-white structure varnished, plan dimensions approx. 400 mm x 400 mm, total height approx. 570 mm, carriage and specimen holding device of corrosion-protected materials,
delivery including foil of fine silver 99.8 %, 0.06 mm thick, for calibration of the temperature indicating instrument, board of pine wood, 10 mm thick, wrapping tissue and mains connection cord set,
for connection to A.C. 230 V, 50 to 60 Hz,
Glow-Wire Test Apparatus 14 Bestell-Nr.: T 03.14
Alternatively:
The Glow-Wire Test Apparatus 35 is equal to the basic model T 03.14 however it is fitted with the following additional outfit:
Motor Drive for moving the specimen to the wire loop, and for returning to the starting position.
As soon as the specimen contacts the loop, a coupling releases the carriage. After an operation time of exactly 30 seconds, the carriage is automatically returned. The test results are better reproducible, and the laboratory technician's attention is not diverted during the testing procedure by having to do various operation tasks. He can fully concentrate on the observation of the specimen.
Pulse Timer with Time Display to give an optical and a disengage able sound signal after 30 seconds each, and to indicate the testing time.
The pulse timer is started at the same time as the specimen contacts the loop. By that, the indication of the time begins to run. The minutes and the seconds appear on the display. At the first signal, the specimen is returned and the glow-wire heating is automatically interrupted.

Wire Loop Current Indicator for measuring the current of the glow-wire,
with digital display, measuring range 0...160 A, class 1, with a current transformer,
Glow-Wire Test Apparatus 35 Article No.: T 03.35
Spare parts:
The articles T 03.81 to T 03.93 are wearing parts without guarantee.
Article No.:
Glow-wire loop 0.5 of nickel-chromium, NiCr 8020, material No. 2.4869, with bore hole 0.6 mm, for the thermocouple 0.5, T 03.86 T 03.81
Miniature jacket thermocouple 0.5 Type K (NiCr/NiAl), outer 0.5 mm, length approx. 100 mm, with plug almost free from thermoelectric voltage and with compensation lead 500 mm long, for Glow-wire loop 0.5, T 03.81 T 03.86
Glow-wire loop 1.0 of nickel-chromium, NiCr 8020, material No. 2.4869, with bore hole 1.1 mm, for the thermocouple 1.0, T 03.84 T 03.82
Miniature jacket thermocouple 1.0 Type K (NiCr/NiAl), outer 1.0 mm, length approx. 100 mm, with plug almost free from thermoelectric voltage and with compensation lead 500 mm long, for Glow-wire loop 1.0, T 03.82 T 03.84
Silver foil strip 1.4 mm x 150 mm, 0.06 mm thick, fine silver at least 99,8 %, for calibration of the temperature indicating instrument T 03.89
Wrapping Tissue 20 g/qm, 10 sheets, each 50 cm x 70 cm T 03.91
Fine Wire Brush for cleaning the glow-wire loop T 03.92
Board of Pine Wood 120 mm x 160 mm, 10 mm thick T 03.93
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T03003e009 2010-05-07 2010 PTL Dr. Grabenhorst GmbH, Stadtsteinach, GERMANY