SNJ Engineering Consultants

20/08/2026

Electrical Distribution System Design for AMRO REFINE (PVT) LTD

- MEP Design Solutions -
Professionally Engineered for Safety, Efficiency, Reliability, and Compliance with Applicable Standards, at Competitive Rates

Design for you;
1. Wiring & Conduit Layouts of Electrical & ELV systems.
2. Single Line Diagrams for Power Distribution Boards.
3. Water supply system.
4. Sewer & Waste water drainage system.
5. Rain water disposal system.
6. Fire protection & detection system.
7. Gas distribution system.
8. Lightning Protection System.

S.N JAYAMPATHI
📞 071 191 3026
www.snjelecdesign.lk
[email protected]

17/08/2026

18/10/2025

When lines become lights 👌

Ongoing Resort project at Unawatuna.
Electrical design by;
SNJ Electrical Designer

👉Design Best, Creative & Safe Electrical Wiring Installation Plan as per Standard Regulations with Reasonable Price by Professional Electrical Design Engineer.

👉The Services Provide from Us;
Designing;
1. Wiring & Conduit Layouts of all Electrical & ELV systems.
2. Single Line Diagrams for Power Distribution Boards.
3. Plumbing System.
4. HVAC System.
5. Fire Protection System.
6. Gas System.
7. Lightning Protection System (LPS).

Supply & Installation;
1. Electrical System.
2. ELV System (CCTV / TV / TP / DATA).
3. Distribution Boards.
4. LPS system.
5. Plumbing system.
6. Fire Protection System.
7. Generators.

Testing & Commissioning with Chartered Certificates;
1. All Electrical System.
2. Plumbing System.
3. ELV System.
4. LPS System.
5. Generators

👉Any Time Contact...
Samitha N Jayampathi( E.Eng)
📞 071 191 3026
www.snjelecdesign.lk
[email protected]

18/10/2025

🧐 Why Panel Boards Have a Standard Installation Height??

1. Safety
• The main reason is human safety.
• Installing a panel too high or too low increases the risk of electric shock or accidental contact while operating switches or breakers.
• A standard height ensures the operator’s eyes, hands, and body are at a safe and comfortable position when accessing the panel.

2. Ease of Operation & Maintenance
• The main switch or topmost breaker must be reachable without using ladders or stools.
• The standard height (usually 1.5–1.8 meters from floor to center/top of the panel) allows comfortable operation for most adults.
• Technicians can safely read meters, reset breakers, or perform maintenance tasks.

3. Compliance with Standards
Different standards specify mounting heights to maintain uniformity and accessibility:
• NEC (National Electrical Code):
The operating handle of the highest breaker should not exceed 2.0 m (6 ft 7 in) above the floor.
• IEC / IS Standards:
Typically recommend panel mounting so the center or operating handle is between 1.4 m and 1.8 m from the floor.
• This ensures consistency across installations — residential, commercial, or industrial.

4. Ergonomics
• Operators should not need to bend or stretch excessively to access breakers or meters.
• The height is based on average human reach for comfort and safety.

5. Aesthetics & Coordination
• Standard height also helps keep all electrical devices (switchboards, sockets, panels) at a uniform level, improving the visual alignment and making wiring and labeling neater.

27/09/2025

Electrical Design of Proposed Two Storied Residence at Udawalawa

👉Electrical Design By,
SNJ Electrical Designer

👉Architectural Design By,
Buddhika Jayasinghe Associates

👉Design Best, Creative & Safe Electrical Wiring Installation Plan as per Standard Regulations with Reasonable Price by Professional Electrical Design Engineer.

👉The Services Provide from Us;

Designing;
1. Wiring & Conduit Layouts of all Electrical & ELV systems.
2. Single Line Diagrams for Power Distribution Boards.
3. Plumbing System.
4. HVAC System.
5. Fire Protection System.
6. Gas System.
7. Lightning Protection System (LPS).

Supply & Installation;
1. Electrical System.
2. ELV System (CCTV / TV / TP / DATA).
3. Distribution Boards.
4. LPS system.
5. Plumbing system.
6. Fire Protection System.
7. Generators.

Testing & Commissioning with Chartered Certificates;
1. All Electrical System.
2. Plumbing System.
3. ELV System.
4. LPS System.
5. Generators

👉Any Time Contact...
Samitha N Jayampathi( E.Eng)
📞 071 191 3026
www.snjelecdesign.lk
[email protected]

27/09/2025

👉Protect Your Guests - Protect Your Brand

27/09/2025

Electrical Design of Proposed Two Storied Residence at Anuradhapura.

👉Electrical Design By,
SNJ Electrical Designer

👉Architectural Design By,
Buddhika Jayasinghe Associates

👉Design Best, Creative & Safe Electrical Wiring Installation Plan as per Standard Regulations with Reasonable Price by Professional Electrical Design Engineer.

👉The Services Provide from Us;

Designing;
1. Wiring & Conduit Layouts of all Electrical & ELV systems.
2. Single Line Diagrams for Power Distribution Boards.
3. Plumbing System.
4. HVAC System.
5. Fire Protection System.
6. Gas System.
7. Lightning Protection System (LPS).

Supply & Installation;
1. Electrical System.
2. ELV System (CCTV / TV / TP / DATA).
3. Distribution Boards.
4. LPS system.
5. Plumbing system.
6. Fire Protection System.
7. Generators.

Testing & Commissioning with Chartered Certificates;
1. All Electrical System.
2. Plumbing System.
3. ELV System.
4. LPS System.
5. Generators

👉Any Time Contact...
Samitha N Jayampathi( E.Eng)
📞 071 191 3026
www.snjelecdesign.lk
[email protected]

27/09/2025

Electrical Design of Proposed Two Storied Residence at Galle.

👉Electrical Design By,
SNJ Electrical Designer

👉Architectural Design By,
Buddhika Jayasinghe Associates

👉Design Best, Creative & Safe Electrical Wiring Installation Plan as per Standard Regulations with Reasonable Price by Professional Electrical Design Engineer.

👉The Services Provide from Us;

Designing;
1. Wiring & Conduit Layouts of all Electrical & ELV systems.
2. Single Line Diagrams for Power Distribution Boards.
3. Plumbing System.
4. HVAC System.
5. Fire Protection System.
6. Gas System.
7. Lightning Protection System (LPS).

Supply & Installation;
1. Electrical System.
2. ELV System (CCTV / TV / TP / DATA).
3. Distribution Boards.
4. LPS system.
5. Plumbing system.
6. Fire Protection System.
7. Generators.

Testing & Commissioning with Chartered Certificates;
1. All Electrical System.
2. Plumbing System.
3. ELV System.
4. LPS System.
5. Generators

👉Any Time Contact...
Samitha N Jayampathi( E.Eng)
📞 071 191 3026
www.snjelecdesign.lk
[email protected]

09/05/2025

Electrical Design of Proposed Two Storied Residence at Beliattha. (3100 sqft)

👉Electrical Design By,
SNJ Electrical Designer

👉Architectural Design By,
Buddhika Jayasinghe Associates

👉Design Best, Creative & Safe Electrical Wiring Installation Plan as per Standard Regulations with Reasonable Price by Professional Electrical Design Engineer.

👉The Services Provide from Us;

Designing;
1. Wiring & Conduit Layouts of all Electrical & ELV systems.
2. Single Line Diagrams for Power Distribution Boards.
3. Plumbing System.
4. HVAC System.
5. Fire Protection System.
6. Gas System.
7. Lightning Protection System (LPS).

Supply & Installation;
1. Electrical System.
2. ELV System (CCTV / TV / TP / DATA).
3. Distribution Boards.
4. LPS system.
5. Plumbing system.
6. Fire Protection System.
7. Generators.

Testing & Commissioning with Chartered Certificates;
1. All Electrical System.
2. Plumbing System.
3. ELV System.
4. LPS System.
5. Generators

👉Any Time Contact...
Samitha N Jayampathi( E.Eng)
📞 071 191 3026
www.snjelecdesign.lk
[email protected]

05/04/2025

Electrical Plan එකක් වැදගත් වන්නේ ඇයි??🤔🤔

ඔබ කරන ඕනෑම ඉදිකිරීමක ( Residential, Commercial, Hotels & Industrial ) Electrical Distribution System එක Electrical Plan එකක් යටතේ සිදුකිරීමේ වැදගත්කම,

📌සම්මත තත්ව යටතේ සැලසුම් කිරීම නිසා උපරිම ආරක්ෂාවක්‌ පද්ධතියට එකතු වීම.

📌විදුලි පරිබෝජන වියදම් හා ස්ථාපන වියදම් අවම වන ලෙස පද්ධතියේ ඇති අයිතමයන් ( switch, outlets, cable path, circuit arrangement, light fittings & etc ) සැලසුම් කිරීම.

📌විදුලි කාර්මික ශිල්පීන්ගෙන් සිදුවිය හැකි අතපසුවීම් වලක්වා ගැනීමට හැකිවීම ( During slab conduiting & wiring ).

📌Wiring එක සදහා අවශ්‍ය අමුද්‍රව්‍ය හා කුලිය සදහා යන වියදම් පිළිබද පැහැදිලි අදහසක් ලබාගැනීමට හැකි වීම.

📌අනාගතයෙදී සිදුකරන අලුත්වැඩියා හා දෝෂ නිරාකරණ කටයුතු වලට පහසුවක් වීම.

📌Client, Architect, Engineer සහ Electrician අතර Electrical system එක සම්බන්ද අදහස් පහසුවෙන් හුවමාරු කරගැනීමට හැකිවීම.

📌 අනෙක් පද්ධතින් නිසා Electrical system එකට සිදුකල යුතු වෙනස්කම් පහසුවෙන් හදුනාගෙන ඒවා ඉක්මනින් නිරාකරණය කරාගැනීමට හැකිවීම.

📌අනාගතයේ Electrical system එකට එකතු කිරීමට යෝජිත කොටස් සදහා ඉඩ පහසුකම් මේ අවස්ථාවේදී නිවැරදි ලෙස සැලසුම් කරවා ගැනීමට හැකිවීම.

සමස්තයක් ලෙස ගත්විට ඉහත කී කරුණු සියල්ලගෙන්ම Electrical system එකේ ආරක්ෂාව වැඩිවීම සහ ඒ සදහා යන අනවශ්‍ය වියදම් අඩුවීමේ වාසිය අයිතිකරුට ලගකරගත හැකිය.

ඉහත කී Electrical plan එකක අඩංගු දෑ,

⚡Wiring layout of lighting & Socket outlets
⚡Conduit layout of lighting & outlets
⚡Conduit layout of ELV system
⚡Conduit layout of power distribution
⚡Single Line Diagram of panel boards
⚡Load calculation
⚡Standard height details
⚡Light fittings details

මෙලෙස ඔබ කරන ඕනෑම ඉදිකිරිමක්‌ සදහා විදිමත් හා නිවැරදි ලෙස Electrical plan එකක් සැලසුම් කරවගැනීමට SNJ Electrical Designer හා සම්බන්ද වන්න.

Samitha N Jayampathi ( Electrical Design Engineer)
www.snjelecdesign.lk
071 191 3026 ( Whatsapp)