PTL Glow wire tester glow wire

Glow wire tester:

1 Overview

Electrical components or parts failure or overload conditions, may reach a high temperature or light around them parts, like glow-wire test simulation components or overload resistance of heat or ignition sources in a short time caused by thermal stress. Method for Evaluating fire risk.

The hot wire test IEC6 0695-2-10:2000 ~ IEC60695-2-13: 2000 "glow wire / hotline, the basic test methods Glow-wire test apparatus and common test procedure" and UL746A, DIN695 IEC829, VDE0471 and other standard requirements to use No flame ignition source simulation project.

Glow wire tester will require material ? And the shape of the electric wire with the current heated to test temperature (550 ° C ~ 960 ° C) vertical scalding the test product to the required pressure (1.0N) for 1 min 30s, as the test sample and bedding material from the fuel or an ignition time to determine the fire hazard of electrical and electronic equipment finished; determination of solid insulating materials and other solid combustible materials, flammable, the ignition temperature (GWIT), flammable and combustible index (GWFI). The glow wire test apparatus for lighting, low voltage electrical appliances, household appliances, machine tools, electrical appliances, motors, power tools, electronic equipment, electrical instruments, IT equipment, electrical business equipment, electrical fittings and accessories such as electric and electronic products and their group pieces of parts of the research, production and quality inspection departments, but also applies to insulating materials, engineering plastics, or other solid combustible materials industry.

Two. Device Profile:

(1) Model: T03.35

(2) Manufacturer: Germany PTL

Three instrument configuration and technical specifications:

(1) nickel - chromium hot wire diameter of 4mm, the ring made ??of a standard size.

(2) measuring the temperature of the hot wire with a nominal diameter of 0.5mm sheathed filaments thermocouple NiCr-Nia, ￠ 0.5mm, 100mm long.

(3) thermocouple placed in the top of the glow wire drilled holes, and to ensure good thermal contact, the thermoelectric power meet ZBY300 requirements.

(4) The test device is designed so that the hot wire kept in a horizontal plane, 1N weights hung on the inside of the chassis is not easy being outside corrosion changes the weight. Its sample exert 1N of force, and the glow wire test sample relative movement in the horizontal direction has been to maintain this pressure value in the process of at least 7mm distance.

(5) Open the sample holder.

(6) flame gauge adjustable.

(7) temperature display instrument display range (0 to 1000) ° C, 0.5 rating, with the glow wire temperature adjustment.

(8) pulse timer, automatic test timing control, automatic control sample testing time and retreat samples.

(9) motor drive, automatic control sample frame forward and backward.

(10) hot wire current display table, range (0 ~ 160), grade 1.0, built-in operation with the current regulation.

(11) security keys, the key is not turned on is not operational.

(12) testing process automatic control from the operator factors affect the outcome.

(13) to adjust the hot depth of 7mm.
Burning on the kind of imposed time (Ta) (14) the range of 0 to 99 minutes, 99 seconds, adjustable in general accordance with the standard requirements is automatically set to 30 seconds

(15) Moving speed of the test sample: 10mm / s, ~ 20mm / s; generally raised to 16 mm / s,.

(16) specify the manufacturer of the CB laboratory