Determination of the one-point-one-vote rule for hot work

This topic is meaningful. The concept of one vote per person is necessary. However, the specifications do not clearly define the scope of the work area; depending on the nature of the work, there are significant differences in the size of the physical space required. This might also be the reason why the task points are not clearly described

We are operating with a radius of 15 meters. Let your peers speak up.

Look at the pipeline medium: 30 meters for gases, 15 meters for liquids

Personally, from the perspective of risk management, if hot work is carried out within the scope of a single process system (an independent unit), the results of risk identification will be the same and all control measures can be applied; in such cases, those different scopes can be considered as a single entity, rather than having to artificially define distances for separate approval processes. This way, each can be managed in a targeted manner; even when they are close to each other, separate control is still necessary ； It’s far away, but the measures will still be effective; it can also be managed separately (of course, more guardians are needed). I wonder if it’s appropriate?

When the flammable medium and environment are the same, it can be considered as one point.

Execute one point every 15 meters. I didn’t do it that way in practice

This topic is very practical; in actual production, different approaches are adopted due to factors such as the sensitivity and hazards of the areas where welding takes place, the flammability and explosiveness of the materials involved, the likelihood of leaks, as well as the start-up and shutdown processes of equipment and the state in which materials are stored. Some companies resort to mobile supervision due to a shortage of supervisors. Personally, I believe that the approach of \"one ticket per welding point with one supervisor assigned\" is the correct one. Given that the working environment and the conditions of the personnel at welding sites can change, issuing one ticket for multiple welding points constitutes a significant source of risk, and in such cases, the purpose of ticketing procedures and supervision is lost.

We strictly implement isolation measures for hot work. When performing hot work on the same system, equipment, or pipeline, the area where work is to be carried out must be fully isolated after it has been processed and found to be satisfactory. This isolated section of the system constitutes one hot work site. However, this applies only within the designated area; if work takes place outside this area, even if it involves the same system, a separate hot work permit is required due to changes in the environment and control measures.

Firstly, the origin of the concept of \"one point per ticket\" can be found in clause 7.23 of hg23011-1999, which states that one Hot Work Safety Permit is allowed to be used at only one hot work site. However, this document does not define what exactly constitutes one such point, nor does it specify whether it refers to a single hot work operation or multiple ones. Additionally, this standard has been repealed and replaced by AQ3022-2008; clause 8.2.3 of this new standard also stipulates that a single Hot Work Permit should be used for each hot work site, yet again without clarifying what is meant by \"one point\". Furthermore, the more authoritative standard regarding hot work is GB30871-2014, which provides further explanations on hot work; however, it does not offer any definition of a hot work site. Both AQ3022-2008 and GB30871-2014 specify the restrictions within 30 meters, 15 meters, and 10 meters of a welding site during welding operations. Therefore, we can understand that the area surrounding a welding site constitutes a spherical region with a radius of either 30 meters, 15 meters, or 10 meters. Therefore, within an area that meets the aforementioned requirements, the same act of hot work performed there can be considered that area to be a hot work site. This is all the evidence I can find for now.