Electrical Thumb Rules-Illumination-(Part-19).
Recommended Lighting Levels For Sports Areas | ||||
| TYPE OF SPORTS | PRACTIVE LEVEL | MINOR LEAGUE | MAJOR LEAGUE | PROV LEVEL |
| Bowls | 20 lux | 50 lux | 100 lux | 150 lux |
| Tennis | 50 lux | 100 lux | 150 lux | 250 lux |
| Football | 50 lux | 100 lux | 250 lux | 450 lux |
| Cricket Outfield | 50 lux | 100 lux | 250 lux | 450 lux |
| Cricket Pitch | 100 lux | 200 lux | 400 lux | 600 lux |
| Hockey | 50 lux | 100 lux | 250 lux | 350 lux |
| Swimming | 50 lux | 100 lux | 150 lux | 250 lux |
Industrial & Office Applications Lux Level | ||
| WORK AREAS | WORK TYPE | LUX |
| General Engineering | Rough Work | 160 lux |
| General Engineering | Medium Work | 400 lux |
| General Engineering | Fine Work | 800 lux |
| General Engineering | Very Fine Work | 1600 lux |
| Inspection Areas | Rough Work | 160 lux |
| Inspection Areas | Medium Work | 320 lux |
| Inspection Areas | Sub Assemblies | 400 lux |
| Inspection Areas | Fine Work, electric & high precision mechanical | 800 lux |
| Offices | Entrance halls and receptions areas | 160 lux |
| Offices | Conference facilities, general offices, typing and filing | 500 lux |
| Offices | Computer and business machine operation | 630 lux |
| Offices | Drawing Offices | 800 lux |
| Outdoor Areas | Mechanical loading | 10 lux |
| Outdoor Areas | Manual loading | 10 lux |
| Outdoor Areas | Service station forecourts | 160 lux |
| Warehousing | Inactive storage | 20 lux |
| Warehousing | Loading bays and large materials storage | 100 lux |
| Warehousing | Small material storage, packing and dispatch | 200 lux |
Recommended Lighting Levels | ||
| Characteristics of Activity | Representative Activity | Illuminance (lux) |
| Interiors rarely used for visual tasks (no perception of detail) | Cable tunnels, nighttime sidewalk, parking lots | 50 |
| Interiors with minimal demand for visual acuity (limited perception of detail) | Corridors, changing rooms, loading bay | 100 – 150 |
| Interiors with low demand for visual acuity (some perception of detail) | Foyers and entrances, dining rooms, warehouses, restrooms | 200 |
| Interior with some demand for visual acuity (frequently occupied spaces) | Libraries, sports and assembly halls, teaching spaces, lecture theaters | 300 |
| Interior with moderate demand for visual acuity (some low contrast, color judgment tasks) | Computer work, reading & writing, general offices, retail shops, kitchens | 500 |
| Interior with demand for good visual acuity (good color judgment, inviting interior) | Drawing offices, chain stores, general electronics work | 750 |
| Interior with demand for superior visual acuity (accurate color judgment & low contrast) | Detailed electronics assembly, drafting, cabinet making, supermarkets | 1000 |
| Interior with demand for maximum visual acuity (low contrast, optical aids & local lighting will be of advantage) | Hand tailoring, precision assembly, detailed drafting, assembly of minute mechanisms | 1500 -2000+ |
Interior Light Levels | |
| Environment | Required Light Level |
| Storage Area / Plant Room (minimal movement of people) | 150 – 200 Lux |
| Construction Areas & Loading Bays (minimal perception of detail) | 300 – 500 Lux |
| Factories & Kitchens (higher perception of detail) | 500 – 750 Lux |
| Inspection, Welding, And Machinery (demanding work) | 750 – 1000 Lux |
| Electronics & Textile Production (repetitive detail) | 1000 – 1500 Lux |
| Technical Offices (accurate detail) | 1500 – 3000 Lux |
| Jewelers & Goldsmiths (precision detail) | 3000 + Lux |
Outdoor Light Levels | |
| Environment | Required Light Level |
| Very Bright Summer Day | Up To 100,000 Lux |
| Overcast Summer Day | 30,000 – 40,000 Lux |
| Floodlit Football Match | 700 – 16,000 Lux |
| Shady Room In Daylight | 250 – 300 Lux |
| Night Light On A Building | 60 Lux |
| Night-Time Urban Street | 10 Lux |
| Night-Time Car Park | 1 Lux |
| Security Floodlights | 700-1300 Lux |
| Shed Lights | 150-300 Lux |
| Lamp Posts | 120-180 Lux |
| Landscape Spotlights | 120 Lux |
| Outdoor Path Lighting | 100 Lux |
| Path lighting. | 100 Lux |
| Landscape Lights | 100-300 Lux |
| Garden lights | 20 Lux |
Illumination Level | ||
| Light levels as per IS 1944 | ||
| Classification of Road | Type of road | illumination (lux) |
| Group A1 | Important traffic routes carrying fast traffic | 30 |
| Group A2 | Other main roads carrying mixed traffic, like main city streets, arterial roads, throughways etc | 15 |
| Group B1 | Secondary roads with considerable traffic like principal local traffic routes, shopping streets etc | 8 |
| Group B2 | Secondary roads with light traffic Important traffic routes carrying fast traffic | 4 |
Illumination Level | |||
| Roadway Classification | Average Maintained Illuminance | ||
| High lux | Medium lux | Low lux | |
| Major/Major | 34 | 26 | 18 |
| Major/Collector | 29 | 22 | 15 |
| Collector/Collector | 24 | 18 | 12 |
| Collector/Local | 21 | 16 | 10 |
| Local/Local | 18 | 14 | 8 |
Interior Lighting Level | ||
Chartered Institute of Building Services Engineers CIBSE Part 2 (2002) | ||
| Illuminance (lux) | Activity | Area |
| 100 | Casual seeing | Corridors, changing rooms, stores |
| 150 | Some perception of detail | Loading bays, switch rooms, plant rooms |
| 200 | Continuously occupied | Foyers, entrance halls, dining rooms |
| 300 | Visual tasks moderately easy | Libraries, sports halls, lecture theatres. |
| 500 | Visual tasks moderately difficult | General offices, kitchens, laboratories, retail shops. |
| 750 | Visual tasks difficult | Drawing offices, meat inspection, chain stores. |
| 1000 | Visual tasks very difficult | General inspection, electronic assembly, paintwork, supermarkets. |
| 1500 | Visual tasks extremely difficult | Fine work and inspection, precision assembly. |
| 2000 | Visual tasks exceptionally difficult | Assembly of minute items, finished fabric inspection. |
Illumination levels of Switch Yard | |
AS/NZS 1158.3.1 | |
| Switchyard area lighting targets | Illuminance (lx) |
| HV areas including any overhead line road crossings and any access path zone type infrastructure | 10 |
| Non-HV areas and general open areas | 5 |
| Isolated areas such as back of buildings, corners of switchyards away from HV Equipment | 2 |
Sub Station Light Levels | |
WEST BENGAL STATE ELECTRICITY TRANSMISSION COMPANY LIMITED | |
| Environment | Required Light Level |
| CONTROL ROOM / Switch gear Room | 300 |
| Battery Room | 150 |
| Communication Room | 300 |
| Offices/Engineers’ Room/Other Office Room | 300 |
| Toilet | 100 |
| Outdoor Switchyard area including road | 30 |
| Stairs | 100 |
| Corridor | 100 |
| Road within campus including colony area | 30 |
| Maintenance room | 150 |
| Any other spot where high level of illumination required | 150 |
| Dormitory & ‘C’ type quarters | 150 |
| Auxiliary Buildings like Pump room and other houses | 150 |
| ACDB- DCDB room/Store / Store Office | 150 |
| Conference room | 300 |
| Tiffin room/Kitchen | 150 |
| GIS Hall | 150 |
Sub Station Light Levels | |
ODISHA POWER TRANSMISSION CORPORATION LIMITED | |
| Environment | Required Light Level |
| Control Room | 350 |
| PLCC Room | 300 |
| LT Room | 150 |
| Charger Room | 150 |
| Cable Gallery | 150 |
| Heating Plant | 100 |
| Battery Room | 100 |
| Computer Room | 300 |
| Entrance lobby | 150 |
| Corridor and landing | 150 |
| Conference and display | 300 |
| Rest Room | 250 |
| AHU Room | 100 |
| DG Set Building | 150 |
| Fire Fighting Pump House | 150 |
| Switchyard – Main equipment | 50 |
| Switchyard – general equipment and balance | 30 |
| Street/Road | 30 |