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Safety Observation 1: Energy isolation

Safety Observation 1: Energy isolation

Sep 26, 2020

The accidental release of energy is one of the important causes of accidents in the field. The electrical energy, pressure energy, mechanical energy, potential energy and other energies that may be accidentally released must be isolated in a reliable way, otherwise the accidental release of these energies may cause damage in the operation. The accidental release of common error energy is one of the important causes of on-site accidents. The electrical energy, pressure energy, mechanical energy, potential energy and other energies that may be accidentally released must be isolated in a reliable way, otherwise the accidental release of these energies may cause damage in the operation.

The following common mistakes:

1

The lock in the left picture is not used correctly and cannot be used as a mechanical stop. The valve handle can only be locked in the right picture.

2

The lock on the left is wrong. After locking, the isolated equipment can still rotate freely. The right figure is correct.

3

The isolation lock execution on the left is flawed, there is no listing, others don't know who locked it and why?

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The method of discharging residual pressure is not correct in the left figure. The pressure relief valve should be used as in the right figure.

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