Scholenberg Global Vniuersatatis

𝗛𝗩𝗔𝗖 𝗢𝗶𝗹 & 𝗚𝗮𝘀 𝗢𝗳𝗳𝘀𝗵𝗼𝗿𝗲/𝗢𝗻𝘀𝗵𝗼𝗿𝗲 (𝗞𝗻𝗼𝘄𝗹𝗲𝗱𝗴𝗲 𝗦𝗲𝗿𝗶𝗲𝘀 𝟭𝟵 𝗼𝗳 𝟴𝟳)

🔍 𝗞𝗲𝘆 𝗔𝗧𝗘𝗫 𝗗𝗶𝗿𝗲𝗰𝘁𝗶𝘃𝗲𝘀
ATEX 2014/34/EU (Equipment Directive):
Governs equipment and protective systems for use in explosive atmospheres. It applies to manufacturers and ensures only safe equipment.

𝗔𝗧𝗘𝗫 𝟭𝟵𝟵𝟵/𝟵𝟮/𝗘𝗖 (𝗪𝗼𝗿𝗸𝗽𝗹𝗮𝗰𝗲 𝗗𝗶𝗿𝗲𝗰𝘁𝗶𝘃𝗲):
Deals with the safety of workers potentially at risk from explosive atmospheres. It is aimed at end-users/employers and involves classifying hazardous areas and ensuring proper equipment and training.

📝 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗖𝗼𝗺𝗽𝗹𝗶𝗮𝗻𝗰𝗲

Zone 1: Equipment must be Category 2 (high level of protection), require third-party (notified body) certification, and have “Ex” marking.

Zone 2: Equipment can be Category 3 (normal level of protection), manufacturer’s self-certification is usually sufficient.

⚠️ 𝗖𝗼𝗺𝗺𝗼𝗻 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝘆 𝗠𝗶𝘀𝘁𝗮𝗸𝗲𝘀

Incorrect Zone Classification: Using equipment not suited for the actual risk.

Improper Documentation: Missing “Ex” markings or certification papers.

Neglecting Maintenance: Not performing regular inspection as per ATEX and IEC standards.

📘 𝗞𝗲𝘆 𝗦𝘁𝗮𝗻𝗱𝗮𝗿𝗱𝘀 𝗳𝗼𝗿 𝗥𝗲𝗳𝗲𝗿𝗲𝗻𝗰𝗲

EN/IEC 60079 Series: Electrical apparatus for explosive atmospheres.

EN/IEC 60079-10-1: Area classification for gas atmospheres.

🎯 𝗪𝗵𝘆 𝗔𝗧𝗘𝗫 𝗠𝗮𝘁𝘁𝗲𝗿𝘀
Failure to comply can lead to catastrophic accidents, loss of life, legal penalties, and insurance problems. ATEX compliance is not only a legal requirement in the EU, but also a benchmark of global safety best practices.

🎓 𝗕𝗼𝗼𝘀𝘁 𝗬𝗼𝘂𝗿 𝗛𝗮𝘇𝗮𝗿𝗱𝗼𝘂𝘀 𝗔𝗿𝗲𝗮 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲
For in-depth training on hazardous area classification, equipment selection, and global compliance, visit
🌐 www.sbgblv.in

Follow for more insights on HVAC safety, standards, and compliance!

𝗛𝗩𝗔𝗖 𝗣𝗿𝗮𝗰𝘁𝗶𝗰𝗮𝗹 𝗚𝘂𝗶𝗱𝗲 𝘄𝗶𝘁𝗵 𝗘𝘅𝗮𝗺𝗽𝗹𝗲𝘀 ( 𝗦𝗲𝗿𝗶𝗲𝘀 #𝟲𝟲)
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✨ 𝗗𝗲𝘁𝗮𝗶𝗹𝗲𝗱 𝗥𝗲𝗽𝗼𝗿𝘁 𝗼𝗻 "𝗜𝗻𝗱𝗶𝗮𝗻 𝗝𝗼𝗯 𝗺𝗮𝗿𝗸𝗲𝘁 (𝟮𝟬𝟮𝟱-𝟮𝟬𝟮𝟲)
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𝗛𝗲𝗮𝘁𝗶𝗻𝗴 𝗩𝗲𝗻𝘁𝗶𝗹𝗮𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗔𝗶𝗿 𝗖𝗼𝗻𝗱𝗶𝘁𝗶𝗼𝗻𝗶𝗻𝗴 (𝗛𝗩𝗔𝗖) 𝗦𝘆𝘀𝘁𝗲𝗺𝘀 𝗳𝗼𝗿 𝗵𝗼𝘀𝗽𝗶𝘁𝗮𝗹𝘀:

Ventilation for infection control is of paramount importance in hospital buildings not only to combat the heat gains from lighting, and medical equipment but to provide optimal air exchange rates in critical areas such as operating rooms, ICUs, wards, and sterilization zones. The air systems in the critical areas also vary with all outdoor air systems and recirculating air systems with 20-15 minimum air exchanges per hour (NBC, 2016). For the nursing and other ancillary areas, the minimum air exchanges per hour varies from 6-15.

Various hospital buildings adopt mixed-mode systems, which use a combination of both natural and mechanical systems of ventilation. This comes with various advantages including the building's adaptability to a wide range of medical and non-medical requirements; occupant's control over their environment and energy cost savings.

To keep the HVAC system running, essential components such as boilers, chillers, and cooling towers (where water-cooled chillers are used) as well as the pump for circulating heated and chilled water, are recommended to be situated above the base flood level (Ouirk A, 2019). According to IS 10905 part 3, the entire hospital building is permitted to be air-conditioned. However, given the financial constraints, non-essential areas including the canteen, laundry, and pharmacy can be exempted. Hence, mixed-mode systems are adopted especially in public hospitals.

With the increase in several disasters, hospital-acquired infection: (HAI) also increases. For instance, flooding alone causes water and air-borne infections due to the inadequacy of the freshwater supply. To maintain standard hygienic conditions, waiting areas, kitchens, and laundry rooms are recommended to be well-ventilated. Therefore, it is crucial to keep the HVAC system operational given the increased vulnerability to infections during patient surges. Design considerations identified for disaster-resilient HVAC services are:

- Provision of critical filtration, cooling, humidification, and dehumidification as well as pressure regime management to the various critical healthcare spaces.
- Failure of the HVAC system could be life-threatening to an immune-compromised patient and can also result in the spread of viral infections.
- Appropriate pressure differentials.
-Flexibility for future expansion.

The key to identifying potential dangers to hospital operations is to assess MEP services. Location of vital equipment and services, decentralization of HVAC systems, redundancy of critical services, and reinforcement of individual services are the four major areas of concern.

Building energy management systems have also been installed in numerous hospitals in India. These systems offer advantages for easy monitoring, operation and energy optimization of chiller compressors, air handling units, pumps, fans, etc.

Reduction of hospital-acquired infections is imperative to achieve hospital resilience. For the construction of public hospital buildings with the large patient influx, a relatively new technology-displacement ventilation system introduces cool airflow at lower velocity while improving ventilation effectiveness within the occupant zone. This technology has reported decrease in the number of ducts-saving floor-to-floor height. It also reduces chiller lift and improves efficiency of localized room temperatures.

𝗠𝗘𝗣 𝗳𝗼𝗿 𝗵𝗼𝘀𝗽𝗶𝘁𝗮𝗹𝘀:

Climate change and its impact on healthcare infrastructure and services are inevitable. Adaptation and assessment of resilience attributes including site planning, built form and structure, MEP services, quality assurance and maintenance and facility managemeThe table illustrates considerations related to aspects such as water supply, waste disposal, air conditioning, power redundancy and building material resilience, among others. The study further emphasizes on the need for regular maintenance and checks to ensure optimal functioning of MEP services in hospitals.

The implications of this study are far-reaching. They not only provide an insight into the various factors that need to be considered in the design of MEP services in hospitals but also highlight the areas that need urgent attention to ensure the hospitals are resilient and capable of functioning efficiently in the face of climate change.

In conclusion, the study underscores the need for a multidisciplinary approach for designing and maintaining MEP services in hospitals. It calls for the active participation of architects, MEP consultants, project managers, and other allied professionals in the process. The healthcare sector must rise to the challenge of climate change and adapt to ensure its infrastructure and services continue to function efficiently and effectively. .

These considerations include, but are not limited to, efficient energy usage, sustainable material selection, strategic placement of equipment and services, planning for future expansions, and integration of technology for monitoring and managing MEP systems.

The study undertaken highlights four major areas of concern such as the location of critical equipment and services, decentralization of HVAC systems, redundancy of critical services, and reinforcement of individual services. Additionally, the study summarizes the design considerations to be taken up by the architects, MEP consultants, project managers and other allied construction professionals in harnessing the potential of MEP service design. As per the literature review presented in this study, the design considerations are presented in Table 2.

𝗘𝗳𝗳𝗲𝗰𝘁𝘀 𝗼𝗳 𝗠𝗼𝗶𝘀𝘁𝘂𝗿𝗲 𝗼𝗻 𝗛𝗲𝗮𝗹𝘁𝗵𝗰𝗮𝗿𝗲 𝗙𝗮𝗰𝗶𝗹𝗶𝘁𝗶𝗲𝘀

𝗛𝘂𝗺𝗶𝗱𝗶𝘁𝘆 𝗮𝗻𝗱 𝗕𝗮𝗰𝘁𝗲𝗿𝗶𝗮

Humidity plays a significant role in bacterial survival and growth. High humidity provides an ideal environment for bacteria to multiply, as it provides the necessary moisture for their growth. It also aids in the airborne transmission of bacteria, increasing the risk of infection.

Studies have shown that in humid conditions, bacteria can survive on surfaces for longer periods, increasing their chances of causing infection. Moreover, aerosol droplets that contain bacteria can remain suspended in the air for extended periods in humid conditions, enhancing the transmission of diseases.

𝗧𝗲𝗺𝗽𝗲𝗿𝗮𝘁𝘂𝗿𝗲 𝗮𝗻𝗱 𝗛𝘂𝗺𝗶𝗱𝗶𝘁𝘆 𝗶𝗻 𝗛𝗲𝗮𝗹𝘁𝗵𝗰𝗮𝗿𝗲 𝗦𝗽𝗮𝗰𝗲𝘀

Healthcare facilities are at the forefront of the battle against such microscopic invaders. As such, maintaining optimal temperature and humidity levels becomes crucial. High humidity and temperature can significantly increase the risk of transmission of bacteria and viruses, leading to outbreaks of infections.

On the other hand, very low humidity can result in dry and irritated mucous membranes, leading to discomfort and potential respiratory issues for patients and staff.

Therefore, maintaining a balance is key. The World Health Organization recommends maintaining relative humidity between 30% and 60% in healthcare facilities to minimize the survival and growth of microorganisms.

In conclusion, understanding the effects of moisture on microorganisms and maintaining optimal humidity and temperature levels in healthcare facilities can significantly reduce the risk of infections, contributing to a healthier environment for all.

Let's all work together to create healthy spaces by understanding and controlling the unseen adversaries in our environment.