Wire and Cable Fire Resistance Tester
The Wire and Cable Fire Resistance Tester is designed to evaluate the circuit integrity of electric cables and optical fiber cables under fire conditions. It applies a controlled flame with a temperature of at least 750°C to assess whether a cable can maintain its required circuit integrity during exposure to fire.
The tester features a single test station, five cable support rings, and two measuring fixtures. The specimen is positioned on the support rings and exposed to the specified flame conditions. The test arrangement is designed for cable and optical fiber cable testing in accordance with the applicable circuit integrity test procedure.
The test wall consists of a heat-resistant, flame-retardant board supported by horizontal steel beams. Its specified dimensions and weight provide a defined mounting arrangement for testing. The instrument is suitable for cable manufacturers, electrical product laboratories, inspection organizations, and fire-resistance testing facilities.
Application
(1) Fire resistance testing of electric power cables.
(2) Circuit integrity testing of cables rated up to and including 0.6/1.0 kV.
(3) Fire resistance testing of electric data cables.
(4) Fire resistance testing of optical fiber cables.
(5) Research and development of fire-resistant cables.
(6) Quality control and performance evaluation of flame-retardant and fire-resistant cables.
Standards
GB/T 19216.11-2003 — Tests for Electric Cables Under Fire Conditions — Circuit Integrity — Part 11: Apparatus — Fire Alone at a Flame Temperature of at Least 750°C
GB/T 19216.21-2003 — 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
GB/T 19216.23-2003 — Tests for Electric Cables Under Fire Conditions — Circuit Integrity — Part 23: Procedures and Requirements — Electric Data Cables
GB/T 19216.25-2003 — Tests for Electric Cables Under Fire Conditions — Circuit Integrity — Part 25: Procedures and Requirements — Optical Fibre Cables
GB/T 19666-2019 — General Rules for Flame Retardant and Fire Resistant Electric Wires and Cables or Optical Fiber Cables
Parameters
| Parameter | Specification |
|---|---|
| Test stations | 1 |
| Specimen capacity | 1 specimen per test |
| Flame temperature | At least 750°C |
| Cable support rings | 5 |
| Measuring fixtures | 2 |
| Specimen length | Greater than 1,200 mm; the source also specifies greater than 1,500 mm for certain configurations |
| Test wall dimensions | Approximately 900 × 300 × 9 mm |
| Test wall assembly weight | 10 ± 2 kg, including the board and supporting frame |
| Horizontal support beams | 2 square steel tubes, each approximately 1 m long with a 25 mm section |
| Test wall material | Heat-resistant, flame-retardant material |
| Test wall mounting | Supported by upper and lower horizontal steel beams |
| Beam filling material | Required if specified by the test setup |
Features
(1) Designed for cable circuit integrity testing under flame conditions.
(2) Supports testing at flame temperatures of at least 750°C.
(3) Single-station configuration for testing one specimen at a time.
(4) Five cable support rings for positioning the test specimen.
(5) Two measuring fixtures for the specified test arrangement.
(6) Heat-resistant, flame-retardant test wall with a supporting steel frame.
(7) Horizontal steel beam construction for mounting the test wall.
(8) Suitable for testing electric cables, data cables, and optical fiber cables when configured for the relevant procedure.
(9) Supports laboratory evaluation and quality control of fire-resistant cable products.
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