Quarry scalping system emergency stop SRS
Working with one of the leading manufacturers of calcium products within the UK…
Cenheard helped to provide the client with the safety circuit upgrade required for a newly installed quarry scalping system.
Our client contacted us when a temporary scalping system was deemed necessary to be turned into a permanent solution. We were tasked with assessing the emergency stop requirements for the system and to identify any gaps in guarding.
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Realised benefits
The client approached Cenheard when the question was asked “is the equipment suitable to become permanent and what upgrades are required?”.
After Cenheard’s inhouse team of machinery safety experts discussed the requirements with the client, the following documents were deemed to add the most value:
- BS EN ISO 12100 risk assessment.
- Emergency stop Safety Requirement Specification (SRS) in line with BS EN ISO 13849.
- Emergency stop location study in line with BS EN ISO 13850.
- Guarding survey in line with BS EN ISO 14120.
The risk assessment identified to the client all hazards associated with the system. Providing the client with additional knowledge and a greater understanding of the standards the system would need to comply with. The assessment also provided Cenheard with the relevant hazardous risks required to determine the required Performance Level (PLr) of the upgraded safety circuit.
An emergency stop safety requirements specification (SRS) provided the client with safety circuit requirements for the system. Including but not limited to integrations between the system itself and the upstream equipment. The requirements for the emergency stop safety function outlining the healthy and unhealthy states of the equipment. As well as the priorities of the safety functions and outlining any foreseeable fault masking within the circuit.
A requirement for an additional emergency stop device was also identified, to be installed in line with BS EN ISO 13850.
All gaps and insufficient safe guards identified via the BS EN ISO 12100 risk assessment where then assessed via a BS EN ISO 14120 compliant guarding survey. This determine the specific requirements needed to establish a complete and safe system.
Guidance areas
Cenheard are experts in machinery safety and provided the client with support in the following areas:
- Risk assessment in line with BS EN ISO 12100.
- Emergency stop location study in line with BS EN ISO 13850.
- Safety Requirement Specification in line with BS EN ISO 13849.
- Guarding survey in line with BS EN ISO 14120.
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