Permit-to-work system
All work on major electrical installations shall be carried out under permit-to-work system which is now well established, unless standing instructions are issued by the competent authority to follow other procedures except in extenuating circumstances (saving life...) in this case the action taken shall be reported to the person-in-charge. The permit-to-work certificate from the person-in-charge of operation to the person-in-charge of the men selected to carry out any particular work ensures that the portion of the installation where the work is to be carried out is rendered -dead and safe for working. All work shall be carried out under the personal supervision of a competent person. If more than one department is working on the same apparatus, a permit-to- work should be issued to the person-in-charge of each department.
No work shall be commenced on live mains unless it is specifically intended to be so done by specially trained staff. In such cases all possible precautions shall be taken to ensure the safety of the staff engaged for such work, and also of others who may be directly or indirectly connected with the work. Such work shall only be carried out with proper equipment provided for the purpose and, after taking necessary precautions, by specially trained and experienced persons who are aware of the danger that exists when working on or near live mains or apparatus.
Definition :
The permit is to be prepared in duplicate by the person-in-charge of operation on the basis of message, duly logged, from the person-m-charge of the work.
The original permit will be issued to the person-in-charge of work and the duplicate will be retained in the permit book. For further allocation of work by the permit receiving officer, tokens may be issued to the workers authorizing them individually to carry out the prescribed work.
On completion of the work, the original shall be returned to the issuing officer duly discharged for cancellation.