| (1) | These guidelines are applicable to all persons involved in explosives workplace under Explosives Regulations, 2003 Occupational Health and Safety act regulation 6(3)(iv). |
| (2) | These guidelines are applicable to any explosives manager who intends to introduce radio frequency (RF) devices within the Danger Area |
| (3) | These guidelines are applicable to Intentional Transmitters that are either Type Approved Equipment or Spectrum Licensed Equipment intended for use in the Danger Area. |
Management of RF Devices and or updates/ modifications in the Danger Area can be determined by following the three steps:
| 1. | Assessments of RF equipment and product. |
| 2. | Risk assessment of the process, equipment, personnel & structure. |
| 3. | Submission to the Department of Employment and Labour for notification. |
The following information is required to perform a desktop evaluation of required exclusion zones for intentional radio frequency equipment:
| i. | Purpose of the assessment. |
| • | Impact on production line (e.g. adding wireless cameras in production area etc) |
| • | Impact on product (e.g. using RFID scanners in a magazine etc) |
| • | Impact on personnel (e.g. radiation hazard due to office location next to radio mast etc) |
| • | Block diagram with description of each manufacturing step. |
| • | List of intentional transmitters including manufacturer, model, operational frequency and effective radiated power (ERP). This should be available from the ICASA Certificate. |
| • | Immunity level of equipment critical to the process. This is often available on the CE declaration of conformity or can be assumed based on the declaration for industrial equipment (10V/m) or light industrial (3V/m). |
| • | Detonation mechanism (Shock wave, temperature, impact, spark etc) |
In the case where a desktop study would indicate an unacceptable risk, or where intentional transmitter data is not available, tests shall be done. Tests shall be done according to a customer agreed test procedure that shall describe the emission (typically CISPR) and immunity (typically IEC 61000-4–xx series) test set-up and test levels. Laboratory tests shall take preference. Each situation should be evaluated on a case by case basis as there could be intrinsically safe requirements for the test equipment should in-situ tests be required.
The outcome of the assessment is mitigation required to reduce the risk to acceptable levels.
