EN ISO 21179:2013 PDF

Light conveyor belts - Determination of the electrostatic field generated by a running light conveyor belt (ISO 21179:2013)

Название (английский):

EN ISO 21179:2013

Light conveyor belts - Determination of the electrostatic field generated by a running light conveyor belt (ISO 21179:2013)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 13
Дата публикации:: 20 марта 2013 г.
Издание:: CEN EN 21179 edition 2 version 1
ICS:: 53.040.10

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Описание (английский):

ISO 21179:2013 specifies a test method for the determination of the electrostatic field generated by a running light conveyor belt according to ISO 21183-1.

Технические детали

Технический комитет: CEN/TC 188 - Conveyor belts
SKU: EN ISO 21179:2013

Abstract

Overview

EN ISO 21179:2013 / ISO 21179:2013 specifies a dynamic test method to determine the electrostatic field generated by a running light conveyor belt (as referenced in ISO 21183‑1). The standard is intended for cases where static electrical behaviour cannot be fully characterised by resistance measurements (ISO 21178), so it measures the field or surface potential produced while the belt is running.

Key topics and technical requirements

Scope: Dynamic measurement of electrostatic field or surface potential for light conveyor belts in running condition.
Test specimen: Virgin (unused) endless belt of (2 500 ± 50) mm length and (100 ± 1) mm width; joined according to manufacturer instructions and conditioned per ISO 18573 (Atmosphere B, 24 h; lower RH allowed for high‑conductivity belts).
Apparatus:
- Pair of earthed steel pulleys (diameter ≥ 200 mm, rim width 120 mm), raw surface Ra ≤ 1,6 µm, final chromium plating; driven pulley crowned per ISO 22.
- Drive providing belt speed of 5 m/s from drive pulley to measurement point.
- Measuring device: electrostatic field meter (E, V/m) or surface potential meter (U, V).
- Earthed steel plates (200×200 mm and 600×200 mm) to correct and shield field distortions.
- Tensioning device and specified shaft loads based on belt elastic modulus k (k per ISO 21181).
Procedure:
- Run belt with each side in contact with pulleys.
- Position sensor on belt centreline, 500 mm from drive pulley; sensor distance 10–100 mm (25 mm preferred).
- Record for 30 minutes; obtain maximum and a steady value (final 10 min change

Overview

Key topics and technical requirements

Scope: Dynamic measurement of electrostatic field or surface potential for light conveyor belts in running condition.
Test specimen: Virgin (unused) endless belt of (2 500 ± 50) mm length and (100 ± 1) mm width; joined according to manufacturer instructions and conditioned per ISO 18573 (Atmosphere B, 24 h; lower RH allowed for high‑conductivity belts).
Apparatus:
- Pair of earthed steel pulleys (diameter ≥ 200 mm, rim width 120 mm), raw surface Ra ≤ 1,6 µm, final chromium plating; driven pulley crowned per ISO 22.
- Drive providing belt speed of 5 m/s from drive pulley to measurement point.
- Measuring device: electrostatic field meter (E, V/m) or surface potential meter (U, V).
- Earthed steel plates (200×200 mm and 600×200 mm) to correct and shield field distortions.
- Tensioning device and specified shaft loads based on belt elastic modulus k (k per ISO 21181).
Procedure:
- Run belt with each side in contact with pulleys.
- Position sensor on belt centreline, 500 mm from drive pulley; sensor distance 10–100 mm (25 mm preferred).
- Record for 30 minutes; obtain maximum and a steady value (final 10 min change

EN ISO 21179:2013 PDF

Технические детали

Abstract

Overview

Key topics and technical requirements

Похожие стандарты

Abstract

Overview

Key topics and technical requirements

Похожие стандарты

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