Jurnal Praktik Keinsinyuran memuat artikel hasil aktivitas praktik keinsinyuran dari berbagai bidang keilmuan teknik. Bidang praktik bidang keinsinyuran sesuai dengan yang diatur pada pasal 5 ayat (1) UU Keinsinyuran. Artikel yang ditulis merupakan artikel yang orisinal, ditulis dalam Bahasa Indonesia atau Bahasa Inggris. Artikel ditulis dengan penyajian pendahuluan, metode pelaksanaan, hasil dan pembahasan, kesimpulan dan saran, ucapan terima kasih, serta daftar pustaka.
Program Studi Profesi Insinyur Universitas Katolik Indonesia Atma Jaya
Penggunaan Alternatif Gas Non Elpiji Untuk Pemotongan Plat Di Workshop Pabrik Kelapa Sawit
The demand for LPG gas at the Sei Silau Palm Oil Mill (PKS Sei Silau) for plate and metal cutting activities in the technical workshop is relatively high, while the cost of LPG refills is comparatively expensive, thus encouraging the need for innovation in alternative fuels. This research and innovation aim to identify a more efficient and economical alternative fuel gas to replace LPG, offering comparable or better performance while remaining safe for use in an industrial environment. The research method employed an experimental approach involving the design of a modified gas cylinder and testing the use of Pertalite as an alternative fuel. Through stages of brainstorming, design, experimentation, and evaluation, the results showed that Pertalite can be effectively used as an alternative fuel substitute for LPG. In addition to being more cost-effective, the non-LPG alternative gas proved to be more fuel-efficient, with a consumption ratio of 1:2 compared to LPG. This finding was validated through experiments conducted in the workshop, where one 3-kg cylinder of non-LPG alternative gas achieved the same cutting performance as two 3-kg LPG cylinders when used for cutting metal and steel plates.
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Pemeriksaan Dan Pengujian Pesawat Angkat Angkut Jenis Tower Crane
Lifting and transporting equipment, especially tower cranes, play a crucial role in the construction and manufacturing industries. This equipment is used to lift and move heavy materials in project areas with high efficiency. However, non-standard operation can lead to fatal accident risks, including load falls, structural failure, and worker injuries. Routine inspections of tower cranes are carried out to ensure that all components are functioning properly and in accordance with applicable safety standards. This activity takes technical data and the history of the use of lifting and transporting equipment in the work area to assess the suitability and safety factors. The inspection and testing procedures are carried out in several steps, including the use of a guide in the form of a standard checklist form, then a document check is carried out; physical visual inspection and dimensions; and load and function testing. Steel wire rope is safe to use for tower crane structures within a radius of 60 meters with a lifting capacity of 2.4 tons. There was no decrease in the hoist motor during the static load test. There is a modification to the hook used to replace the safety latch by welding it to the hook body. The Operator's SIO meets class I requirements with a tower height of ± 70 meters.
Analisa Tegangan Pipa untuk Kebutuhan Reverse Engineering Pipa Penyalur
This study aims to evaluate the structural integrity of the piping system and optimize its design. The method began with the collection of actual data from piping system which was then input for modeling and simulation using AutoPIPE software. Analysis which was done: calculating stress due to sustained loads (internal pressure, pipe/fluid weight) and occasional loads (earthquakes), as well as examining the forces on the pipe and supports, displacement, and rotation of the pipe. Initial results indicated high stress (ratio above 1.0) under the combined sustained and earthquake loads, indicating that the initial design does not meet safety standards. As a solution, additional pipe supports at critical points were recommended. By adding appropriate supports, the stress on the pipe due to the combined sustained and earthquake loads was successfully reduced to the design code's allowable limits. This was very effective in improving the safety and compliance of piping systems with standards, reducing the risk of failure, and ensuring stable operation.
Penerapan Wavelet Transform pada Analisis Error Pembacaan Internal Measurement Unit dengan Berbagai Variasi Level Cairan pada Tangki Drone Sprayer di PT. Frogs Indonesia Yogyakarta
Sloshing in the drone sprayer tank can disrupt IMU readings and reduce control stability. This study evaluates the influence of 1–5 liter liquid levels on IMU errors and the effectiveness of DWT using the Daubechies 4 basis with three decomposition levels, where D1 was removed, D2 was processed with soft thresholding, and A3–D3 were retained. The highest errors occurred at 1–2 liters, indicated by higher RMSE values. After denoising, RMSE decreased significantly up to 65.90% on the y-acceleration axis demonstrating that DWT is effective in reducing noise and improving sensor accuracy to maintain drone stability under dynamic conditions.
Analisis Strategis Poros Penggerak Listrik Terintegrasi dalam Peningkatan Kemampuan KRI
This study analyzes the advantages and challenges of using an Integrated Electric Propulsion System on the Republic of Indonesia Warship (KRI) using a qualitative descriptive approach. Data were collected through literature studies in the fields of defense and marine technology. The results of the study indicate that this system offers significant improvements in maneuverability, speed, and noise and vibration reduction, which are very important in the context of military operations. Although there are challenges related to high initial costs and more complex maintenance requirements, the long-term benefits of energy efficiency and reduced operational costs make this system a strategic choice for the Indonesian Navy. Thus, the implementation of an integrated electric drive shaft not only increases the combat readiness of KRI, but also strengthens Indonesia's position as a competitive maritime power in the region. This study is expected to provide recommendations for the development of a more modern and adaptive defense policy to global technological developments.
Pengaruh Beban Sealer Terhadap Baut Penekan Mesin Sachet Akash
This study investigated the effect of sealing load on the pressing bolts of the Akash sachet machine used at PT Unilever Indonesia. Using Fuji film as a pressure indicator, the pressure distribution on the sealing surface was analyzed and converted into quantitative force data. Subsequently, we calculated the load received by each bolt and compared it to the maximum tensile strength of the bolts through tensile testing. The results showed that the load applied to each bolt is well below the material's yield strength, confirming the bolts’ capability to perform safely and reliably under operational conditions. These findings provided insight into optimizing sealing performance and ensuring the mechanical reliability of the machine.
Penilaian Perpanjangan Sisa Umur Layan (Residual Life Assessment) Pressure Vessel Menggunakan Metode Fitness For Service
Residual life assessment (RLA) is a crucial step to ensure the reliability, safety, and operational efficiency of equipment that has exceeded its design life or shows signs of aging. This study was conducted on the Gathering Station (GS) VI Talang Jimar, owned by PT Pertamina EP Zone 4 Field Prabumulih, with the aim of evaluating the current condition of the equipment, estimating the remaining operational life, and providing recommendations regarding necessary maintenance or replacement actions. The Risk-Based Inspection (RBI) method and the Reliability Block Diagram (RBD) approach were used in this analysis to map risks, evaluate system reliability, and provide accurate estimates of the remaining life. Data were obtained through visual inspection, process verification, thickness measurements, non-destructive testing, dimensional measurements, and material analysis. The analysis results show that some equipment requires special attention regarding structural and operational integrity.
Pemodelan dan Simulasi Proses Flash Separation Condensate untuk Optimasi RVP Produk CPF Lapangan-X
This research aims to optimize flash drum operating conditions at Field-X Central Production Facility (CPF) with a condensate production capacity of 50 barrels per day (bpd). Simulations were conducted using DWSIM software version 8.8.1 with the Peng-Robinson thermodynamic model, varying pressure (5, 10, 15, 20 psig) and temperature (50, 55, 60, 65, 70°C). Simulation results indicate that pressure increases at constant temperature enhance condensate flow rate, while temperature increases reduce RVP values but increase energy requirements. At 5 psig pressure and 50°C temperature, optimal performance was achieved with an RVP of 10.33 psia and an efficiency ratio of 10.30 bpd/kW. However, gravity flow design considerations led to the selection of 10 psig pressure with operating temperatures of 60-65°C. This study provides operational recommendations that balance product specifications, energy efficiency, and system technical constraints.
Root Caused Failure Analysis Deodorizer Column at Expansion Bellow and Vacuum Chamber Connection to Column in Refinery Plant
Vacuum chamber that connecting the deodorizer column to the condenser had collapsed. The leaks were potentially occurring prior to the collapse of the vacuum chamber. The loading and unloading operation could make a fluctuating dynamic stress. In addition to the fluctuating dynamic stresses, fatigue failure mechanism had occured. The crack developed and gradually propagated in the welded joints which welded on the site due to it was proved have low mechanical properties as shown in tensile test. Follow the welding procedure specification (WPS) document, inspect the preparation of the welding process to ensure that the single-V groove is being prepared appropriately, inspect the weld during and/or after the welding process to ensure that it has achieved complete joint penetration and employ another non-destructive testing method, such as radiography, to verify the completeness of the joint penetration are recommended to prevent the similar failure in the future.
Penerapan Kaizen System Untuk Efisiensi Pekerjaan Galian Batu Pada Proyek Relokasi Jalan Masyarakat Terdampak Bendungan Bolango Ulu PT. Bumi Karsa
Alternating current electricity is commonly transmitted in two ways, single phase and three phase. Three phase is commonly used in industrial settings for manufacturing lines meanwhile single phase load are powered by tapping one of the three available phases. This research delves into installation of an Automatic Transfer Switch to provide redundant single phase supply using two ATS units wired in a way to automatically tap into any active one phase out of the three phase supply. The result is that dual ATS system is capable of providing single phase electricity as long as there is one active phase out of the three phase supply.
Comparison for Assessment of Pipeline Integrity with ASME B31.8 and ASME B31.G
Integrity assessment is a critical process in the oil and gas industry to prevent pipeline failures such as leaks or ruptures. This study evaluates a gas pipeline's integrity using two assessment methodologies: the conventional design code (ASME B31.8) and the defect-specific method (ASME B31G). An in-line inspection (ILI) conducted in June 2024 revealed the maximum corrosion depth with a depth-to-thickness ratio (d/t) of 0.35. The design code assessment classified the pipeline as potentially unsafe due to wall thickness falling below the minimum requirement. In contrast, the ASME B31G assessment showed the pipeline could safely withstand the design pressure. The comparison highlights the conservative nature of design codes and underscores the importance of defect-specific assessment in accurately determining residual life and optimizing maintenance strategies.
Proyek Implementasi Instalasi Kelistrikan pada Usaha Mikro
Street coffee carts, as a form of micro-enterprise, often rely on 3-kg LPG gas and power banks to support their operations, particularly for lighting and water heating. However, this system has limited energy capacity and poses high safety risks. This report discusses the implementation of an alternative electrical system that is safer and offers more functionality by using a 12V car battery and a 1000W inverter as the energy source. The new system replaces the use of 3-kg LPG gas and power banks for powering heaters and LED lights, while still prioritizing Occupational Health and Safety (OHS) aspects. The analysis shows that the new design can provide a greater electricity supply (up to 720 Wh), allowing LED lights to operate for 11 hours and electric heaters for more than one hour. In addition, the system reduces the risk of fire caused by gas leaks and short circuits from wiring. This study demonstrates that a simple engineering approach can offer practical, efficient, and safe solutions for micro-entrepreneurs in urban environments.
Pigging Operation on a Propylene Transfer Pipeline
In oil and Gas, pipelines are commonly used to transport hydrocarbons or products inland due to their efficiency and safety. It can operate 24 hours, 7 days without interruption, which is crucial for a continuous operation. Compared with trucking or rail transport, pipelines have lower operating and maintenance costs for bulk transportation. And as most pipelines will go underground, it provides safer operation by minimizing interaction with the public. Building a pipeline infrastructure requires a comprehensive process of planning, designing, procurement, construction up to the commissioning. One of the critical steps of the pipeline construction is conducting pigging, which can ensure cleanliness, dryness, and verify the pipe gauge and thickness. This will ensure safe operation of a pipeline. This article presents a case study of the pigging operation in a pipeline for propylene transfer stretch for approximately 4.1 km.
Assessment of Pipeline Integrity with Circumferential Corrosion Using ASME B31.G and BS 7910
Pipeline integrity is essential for ensuring the safe and reliable transportation of hydrocarbons. Corrosion is one of major cause of pipeline failure and requires regular assessment. The ASME B31.G method is commonly used in Indonesia to evaluate pipeline integrity based on hoop stress due to internal pressure. However, this method does not account for axial stress, which can become significant in the presence of circumferential corrosion defects. This study assesses a pipeline with 19 corrosion defects using ASME B31.G and compares the results with BS 7910, which considers both hoop and axial stresses. Future defect growth is predicted using DNV RP F101. Results show that two circumferential defects are governed by axial stress in 2027 and 2030, and that ASME B31.G significantly overestimates safe operating pressure in such cases. A simulation further reveals that axial stress tends to dominate when corrosion depth exceeds 50% of wall thickness. This study recommends identifying defect orientation and using BS 7910 for a more conservative assessment when axial stress is likely to govern.
Evaluasi Indeks Polaritas (PI) sebagai Indikator Keandalan Isolasi Kabel pada Sistem Pressurized Fan di Gedung Bertingkat PT XYZ
The reliability of electrical systems and mechanical equipment, such as Pressurized Fans is critical for ensuring safety and operational continuity in high-rise buildings, particularly in emergency stairwells. This study focuses on Polarization Index (PI) testing to evaluate cable insulation conditions in Pressurized Fan at PT XYZ. The methodology includes initial functional testing, literature review, automated control panel design, and system performance evaluation. Test results revealed that while insulation resistance (IR) values met standards (>25 MΩ), low PI values (<1.0) indicated insulation degradation, causing frequent tripping of the Pressurized Fan. The implemented solutions involved replacing the cable installation and designing a more reliable control panel. Post-improvement, the system operated optimally and complied with safety standards such as SNI 03-1746-2000 and NFPA 92A. This study highlights the importance of preventive maintenance through regular PI testing to prevent system failures and ensure building occupant safety.
Analisa Risiko Keselamatan dan Kesehatan Kerja (K3) Menggunakan Metode HIRADC Pada Pekerjaan Penggantian Trafo 3 GIS Penggilingan
The replacement work of Transformer 3 at the GIS Substation in Penggilingan carries a high level of risk to occupational health and safety (OHS), necessitating a systematic approach to identify and control potential hazards. This study applies the HIRADC method (Hazard Identification, Risk Assessment, and Determining Control) to assess risks across 17 stages of work activities. The assessment results show that 53% of activities fall into the high-risk category, 23.5% into medium risk, and 23.5% into low risk. The main hazards identified include exposure to high-voltage electricity, heavy load handling, confined working spaces, and exposure to SF₆ gas. Risk control measures were implemented based on the hierarchy of controls, starting from elimination, substitution, engineering controls, administrative controls, and the use of personal protective equipment (PPE). The application of the HIRADC method proved effective in formulating risk mitigation strategies and improving safety standards, particularly in high-voltage electrical work environments such as GIS substations.
Evaluasi Kontraktual dan Dampak Operasional dari Suspension dan End of Suspension dalam Proyek Data Center
Temporary suspension in construction projects can significantly impact project execution in terms of time, cost, risk, and productivity. This study evaluates the contractual and operational aspects of suspension and end of suspension in the Data Center project at KIIC Karawang. The analysis is based on contract documents, interviews, and field observations. Findings indicate that while the suspension is contractually valid, its impacts require well-planned mitigation and restart strategies. Recommendations are provided concerning remobilization procedures, claims, and post-suspension risk management. The study contributes to the understanding of suspension impacts in high-risk construction environments and emphasizes the necessity of contractual flexibility and proactive project controls during critical disruptions. The findings are expected to benefit not only contractors and project managers but also policymakers and stakeholders involved in the formulation of contractual frameworks for critical infrastructure projects. By providing a comprehensive overview of the practical and legal considerations during suspension phases, this study can serve as a reference for future project planning and risk management strategies.
Individual Test pada Automatic Transfer Switch sebelum dilakukan Energize
Automatic Transfer Switch (ATS) is a very important device in a building, especially a data center building. ATS functions to maintain uninterrupted current flow, both primary (PLN) and secondary (Genset). Considering the importance of the ATS device, an individual test must be carried out before energize. The function of this test is to make sure it’s reliability of the ATS device. The Visual Inspection methodology verifies the completeness of ATS identity before installation. The Insulation Resistance Test verifies that phase-to-phase and phase-to-ground insulation remains above the prescribed minimum threshold. The Contact Resistance and Continuity Test are essential in diagnosing the quality of electrical connections and circuit pathways, preventing excessive resistance variations that may lead to equipment failure or operational hazards. The Current Transformer Test serves to validate load detection accuracy. Lastly, the Torque Verification procedure ensures the mechanical robustness of terminal connections. The findings provide a foundation for preventive maintenance strategies and offer recommendations for enhancing the long-term reliability of ATS systems within data center infrastructures. The testing procedures are conducted in accordance with both national and international standards, such as SNI, PUIL, ANSI/NETA, IEC, and NFPA.
Optimalisasi Konsumsi Energi Kompresor Melalui Otomatisasi Valve Pneumatik Pada Lini Pengeringan Galon 19L
This engineering practice project is designed to improve energy efficiency by modernizing the drying process in the 19-liter gallon packaging line within a Bottled Drinking Water (AMDK) facility. Traditionally, the drying system operated by continuously releasing compressed air at high pressure, regardless of whether a product was present, leading to substantial energy waste. To mitigate this inefficiency, a low-cost automation system was deployed, integrating inductive proximity sensors with pneumatic solenoid valves. These components enable airflow to be activated only when a gallon is detected at the drying station, thereby eliminating unnecessary energy discharge. Quantitative evaluations reveal that this system effectively reduces compressor operating hours and lowers daily energy consumption. The monthly cost savings amount to IDR 3,070,553, equivalent to annual savings of approximately IDR 36,846,640. The system requires minimal capital investment, with a calculated payback period of less than 24 hours. In addition to its financial benefits, the solution promotes operational reliability, reduces compressor wear, and aligns with sustainable industrial practices. Its simplicity and affordability make it highly replicable for similar pneumatic systems across various manufacturing settings.
Uji Fungsi Watertube Boiler Takuman N-600 SA Superheater Kapasitas 20 Ton Uap/Jam pada Pabrik Minyak Kelapa Sawit
At the palm oil factory, steam becomes a primary need; besides driving turbines, steam is also required for other processing stations. Boiler inspection is a comprehensive process of checking and testing the boiler to ensure it is safe, efficient, and meets applicable safety standards. The tests carried out on the Watertube Boiler Takuma N-600 SA are the hydrostatic test and the steam test. The pressure tested in the hydrostatic test is 23 kg/cm². After performing slow firing (gradual combustion), the steam test is conducted to ensure that the safety valves function properly. The first safety valve opens at a pressure of 21 kg/cm², and the second safety valve opens at a pressure of 22 kg/cm². The conclusion of the hydrostatic test is successful with parameters showing no leaks on the expansion and welding of the watertube, and the steam test is successful where the safety valves function correctly.
Kegagalan Beton Akibat Campuran Air Berlebih
The study examines structural cracks in a multi-story concrete building caused by excessive water in the mix. Using visual inspection., UPV testing, and core drilling, it was found that high water-to-cement ratios reduced concrete strengh, with actual values failing to meet design targets (fc’ 30 and 35 MPa). The issue was worsened by addtional on-site water added during casting. The results higlight the need for strict control over concrete mix design.
Rancang Bangun Cokelat 3D untuk Cinderamata Perusahaan
One of the media can be used to improve customer’s brand recognition is souvenirs which depict the company's identity. Unique and interesting souvenirs will make a special impression on consumers. PT Panasonic Gobel Indonesia (PGI) is currently planning to create unique souvenirs for both company guests and employees. This souvenir is planned to be made of chocolate using the company logo. The problem in the plan to make this souvenir is the need for several alternative souvenirs in 3D or 2.5D form, using company logos that have never been translated into 3D or 2.5D in detail. This research will focus on efforts to build a design and prototype for chocolate souvenirs to meet the needs of PT Panasonic Gobel Indonesia and is planned in 3D or 2.5D form. Product design is carried out using ArtCAM Pro software to obtain detailed textures and reliefs of chocolate, while the prototyping process will be carried out using the Subtractive Rapid Prototyping (SRP) method using a Computer Numerical Control (CNC) machine to obtain precise results according to the design. The final results of the research are a 2.5D PT PGI souvenir chocolate design, a prototype chocolate mold pattern made from pine wood with dimensions of 260 x 200 x 25 mm, a chocolate mold prototype made from rigid polyvinyl chloride (PVC) sheet plastic with a thickness of 0.5 mm, and a 2.5D chocolate prototype with dimensions 216 x 136 x 20.5 mm.
Penerapan Kaizen System Untuk Efisiensi Pekerjaan GalianBatu Pada Proyek Relokasi Jalan Masyarakat TerdampakBendungan Bolango Ulu PT. Bumi Karsa
This article presents the implementation of the kaizen system in engineering practices at PT. Bumi Karsa, aiming to enhance the efficiency of stone excavation work. Open blasting replaced the use of a hydraulic breaker excavator as the method. The planning and execution of this kaizen system followed the Plan, Do, Check, and Action (PDCA) framework. The study was conducted on the Relocation Project for the Affected Community Road of the Bolango Ulu Dam in Gorontalo. Results indicate that the implementation of kaizen led to a 17.95% reduction in operational costs and a completion time that was 16 working days faster
Strategi Optimalisasi Manajemen Proyek Infrastruktur Energi Terbarukan untuk Meningkatkan Ketepatan Waktu dan Kualitas Instalasi
Renewable energy infrastructure is essential for energy transition and national energy security, yet project execution often faces delays and suboptimal installation quality. This study investigates engineering practices for managing renewable energy projects, focusing on photovoltaic (PV) system installations in diverse Indonesian regions. Using a qualitative descriptive approach with case studies and field observations, the research analyzes project execution processes to identify key factors influencing outcomes. Findings show that integrated project management based on hands-on field practices, reinforced stakeholder communication, and adherence to measurable quality standards can accelerate project completion while maintaining reliability. In addition, adapting local technologies and engaging communities support smoother implementation and long-term sustainability. The study provides practical insights for engineering professionals in developing project management strategies that enhance efficiency and quality while contributing to Indonesia’s renewable energy goals.
Evaluasi Perpanjangan Umur Pakai Overhead Crane Menggunakan Pedekatan Fatigue Life
The reliability of equipment in the oil and gas sector, particularly in load-lifting systems such as overhead cranes, is a critical factor that influences both safety and operational continuity. Over time, these systems are subject to degradation due to repeated loading cycles and harsh operating environments. In accordance with the Indonesian Ministry of Energy and Mineral Resources Regulation No. 32 of 2021, any equipment that approaches or exceeds its design life must be evaluated for continued serviceability through a Residual Life Assessment (RLA). This study investigates the estimated remaining life of a lifting device using the fatigue life approach, based on the AISC 360-16 standard. The results indicate that the equipment remains fit for continued service, with a significantly high estimated remaining life across different loading scenarios - 83752 years for light use, 33302 years for moderate use, and 16635 years for heavy use. These values are attributed to the actual working stress being significantly lower than the allowable stress limit, thereby enabling an essentially infinite fatigue life under theoretical conditions. In this study, the fatigue cycle is conservatively limited to 10⁸ cycles to account for practical constraints and design conservatism.
Implementasi Warehouse Management System (WMS) untuk Meningkatkan Kinerja Warehouse pada Perusahaan Otomotif
The implementation of a Warehouse Management System (WMS) is a strategic step to enhance efficiency and accuracy in warehouse operations, particularly in the automotive industry, which faces high complexity in its supply chain. This research is motivated by the need for automotive companies to improve logistics performance, reduce delivery errors, and accelerate the distribution process of components. The objective of this study is to evaluate the impact of WMS implementation on warehouse performance, focusing on operational efficiency, inventory accuracy, distribution speed, and the defect ratio in component supply services. The research employs both quantitative and qualitative case study approaches through data collection before and after WMS implementation, field observations, and interviews with relevant personnel. The findings indicate that WMS implementation improves warehouse process efficiency, reduces picking time, increases stock data accuracy, and decreases component delivery shortages. Despite several challenges such as technology adaptation and workforce training, the success of implementation is strongly supported by management commitment and infrastructure readiness. support logistics optimization in automotive companies.
Perspektif Grup Proses Manajemen Proyek pada Implementasi Smart Parking System di UKSW
In every job that meets the requirements as a project, it can be seen through the perspective of the project management process group, especially if the work has a predictive approach. The requirements for a project are to have a certain duration of work and unique results. The Smart Parking System implementation at the Satya Wacana Christian University (SWCU) meets the requirements as a project, and therefore can be discussed through the perspective of the project management process group. In the initiation process group the organization's objectives were obtained to carry out the efficiency of parking operators and updating technology without reducing parking safety. Furthermore, in the planning process group with the help of a Gantt Chart, Budget Table, and Rasci Matrix so that the time estimation value needed for 91 days and the budget estimate of Rp 72,500,000,-. In the execution process group, the work process is shown in accordance with the work breakdown structure (WBS) in planning. The monitoring and control process group ensures that the work is in accordance with the budget and duration needed. Finally, the closing process group was handed over to the Project Sponsor.
Penerapan Preventive Maintenance Alat Berat di PT Madhani Talatah Nusantara Jobsite Tanjung Enim
Preventive maintenance is a maintenance process that is carried out regularly and scheduled to prevent premature damage to heavy equipment. Maintenance planning activities are carried out as a way of reducing sudden damage. The maintenance unit schedule is carried out with timely repairs according to the schedule. This scheduling is important considering the arrangement of humans, methods, machines and materials in the mining world more efficiently. Making a schedule correctly can create an optimal level of repair without reducing quality so that it can increase productivity. This study aims to create a unit repair planning schedule at PT Madhani Talatah Nusantara. The findings of this study are a decrease in the bread schedule, high physical availability, and reduced risk of failure, extending the life of the tool, reducing repair costs, and increasing work safety.
Pembangunan Gardu Induk 150 kV Lautan Baja Indonesia
This engineering practice activity involves the implementation of the construction and installation of the Main Substation (GI) of PT.PLN (Persero) installed by PT. Siemens Energy Indonesia in the PT.Lautan Baja Indonesia factory area in Serang Regency, Banten. This substation is an external substation built in four bays which aims to support the optimization of electricity supply for PT. Lautan Baja Indonesia factory production and strengthen the supply of electricity in the Serang area, Banten. The substation has not been operational because it is waiting for the completion of the construction of the high-voltage overhead line (SUTT) which is the main source of electricity distribution from other substations. With this research, it is hoped that the government will immediately determine and approve the replacement compensation costs for buildings and areas owned by the community that are passed by the High Voltage Overhead Line so that the Lautan Baja Indonesia substation can operate.
Penerapan Value Engineering dalam Kontrak FIDIC untuk Efisiensi Biaya oleh General Contractor
In construction projects, there is a correlation between cost and time. Cost and time are key factors that impact the success of a project. The cost effectiveness is always related to Value Engineering. Value Engineering is a systematic approach that increases the value of a product or project through functional analysis, proposing to reduce costs without compromising quality or performance. The implementation of Value Engineering by the General Contractor in construction uses the FIDIC contract as the legal basis. Changing the materials is proposed as a solution for a faster project duration. The topic discussed is a qualitative and descriptive approach based on a confidential case study from an ongoing project. The results of the analysis show that Value Engineering can reduce costs by up to 14% from the outset without compromising the quality of the work. The discussion on Value Engineering is expected to provide insights for contractors in proposing material changes through this approach. By proposing alternative materials that meet the specifications, it is hoped that Value Engineering can serve as a solution to enhance efficiency and sustainability in the project.
Maria Margaretha Lanny Widyastuti Pandjaitan