An Interlocked Guard
The operation principle of an interlocked guard is to disable power to the machine and the machine will not operate until the guard is in place. Or the act of opening the guard stops the dangerous parts and disables power. Example – Photocopier
Merits and Demerits of ‘Interlock Guards’
Merits of interlocked guards are the machinery will not operate until the guard is in place (or) Opening the guard stops the dangerous parts and disables power. This will allow frequent access to a machine’s dangerous zone by de-energising it and preventing it from operation (e.g. Microwave Oven).
The main limitation (De-merits) of an interlocked guard is that it is (technically) possible to bypass the system so that the machine can be operated with guard open. Other demerit would be it may be more prone to failure as it involves moving parts/ complicated mechanism and hence require regular maintenance which can be done only by Qualified Technicians.
The operation principle of an interlocked guard is to disable power to the machine and the machine will not operate until the guard is in place. Or the act of opening the guard stops the dangerous parts and disables power. Example – Photocopier
Merits and Demerits of ‘Interlock Guards’
Merits of interlocked guards are the machinery will not operate until the guard is in place (or) Opening the guard stops the dangerous parts and disables power. This will allow frequent access to a machine’s dangerous zone by de-energising it and preventing it from operation (e.g. Microwave Oven).
The main limitation (De-merits) of an interlocked guard is that it is (technically) possible to bypass the system so that the machine can be operated with guard open. Other demerit would be it may be more prone to failure as it involves moving parts/ complicated mechanism and hence require regular maintenance which can be done only by Qualified Technicians.
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