Site Offices & Welfare Areas

Electrical requirements for temporary site offices, welfare facilities, canteens, drying rooms, and accommodation units on UAE construction sites.

Applicable Standards

Temporary site offices and welfare facilities are classified as temporary electrical installations under Section 9.6 of the Abu Dhabi DoE EWR 2020 and the equivalent section of the Dubai Building Code 2021. They must comply with all the requirements for temporary installations, including RCD protection, earthing, and periodic inspection. Where welfare facilities are provided for more than 50 workers, they are also subject to MoHRE labour accommodation standards.

Classification
Temporary electrical installation — DoE EWR 2020 Section 9.6
critical
RCD protection
All socket outlet and lighting circuits — ≤30 mA RCD
critical
Earthing
TN-S or TT earthing — bonding of all metal structures
critical
Periodic inspection
Monthly (ADOSH-SF CoP 15.0)
critical

Lighting Requirements

Minimum illuminance levels in temporary site offices and welfare areas are specified in ADOSH-SF CoP 15.0 and the UAE Labour Camp Regulations (Cabinet Resolution No. 13 of 2009 for accommodation). Emergency lighting with battery backup is mandatory in all occupied temporary buildings.

General office areas
Minimum 300 lux at desk level
standard
Welfare / rest areas
Minimum 100 lux
standard
Toilet / ablution areas
Minimum 100 lux
standard
Canteen / kitchen
Minimum 200 lux at work surfaces
standard
Emergency lighting
Battery backup — minimum 1 hour duration — all escape routes
critical
Emergency lighting test
Monthly function test — 6-monthly full duration test
critical

Kitchen and Canteen Electrical Safety

Canteen and kitchen areas in temporary welfare facilities present specific electrical hazards due to the combination of water, heat, and high-power equipment. All socket outlets in kitchen areas must be protected by 30 mA RCDs. Fixed cooking equipment must be on dedicated circuits with local isolation. Gas detection systems must be electrically safe (intrinsically safe or explosion-proof) where LPG is used.

Socket outlets in kitchen
30 mA RCD protected — Type A minimum
critical
Fixed cooking equipment
Dedicated circuit with local lockable isolator
critical
IP rating in wet areas
Minimum IP44 for all fittings within 2.4 m of water sources
critical
Gas detection (LPG)
Intrinsically safe or Ex-rated electrical equipment in LPG zones
critical
Supplementary bonding
All metal sinks, worktops, and appliances bonded to earth
critical

Air Conditioning Units

Air conditioning is mandatory in all UAE site offices and welfare areas. AC units must be on dedicated circuits with local isolation. Outdoor condensing units must be properly earthed and protected from physical damage. Drain lines must not create water ingress hazards near electrical equipment.

Dedicated circuit
Each AC unit on its own circuit with local isolator
critical
Outdoor unit earthing
Condensing unit frame bonded to earth
critical
Circuit protection
MCB rated per manufacturer specification + RCD protection
critical
Drain line routing
Must not discharge near electrical equipment or DBs
standard