Draught Proof Chamber

Technical Datasheet

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Draught Proof Chamber

Applicable Standards

The Draught Proof Chamber shall be designed and manufactured in compliance with the following standards:

  • IS 10322 (Part 1): 2014
  • IEC 60598-1 – Annex D / Clause 12.4.1
  • IS 16102 (Part 1): 2012 (Reaffirmed 2017)

Suitable for temperature rise testing of luminaires, LED lamps, bulbs, and associated lighting accessories

Chamber Construction

ParameterSpecification
Chamber TypeDraught Proof Chamber
ConstructionDouble-walled structure
Inner Surface FinishBlack matt finish (low reflectivity)
Inner WallPerforated sheet construction
Outer BodyPowder-coated mild steel
InsulationHigh temperature thermal insulation
Chamber DoorFront access door with sealing arrangement
Test MountingProvision for mounting luminaires and accessories
Air CirculationNatural convection as per standard
LightingInternal test observation light (optional)

Chamber Dimensions

ParameterSpecification
Internal Dimensions1700 mm (L) × 900 mm (W) × 900 mm (H)
External DimensionsApprox. 1900 × 1100 × 1200 mm
Chamber VolumeApprox. 1.37 m³

Temperature Measurement System

ParameterSpecification
Temperature MeasurementThermocouple based system
No. of Channels16 Channels Temperature Data Logger
Sensor TypeType-K Thermocouples
Thermocouple Quantity16 Nos.
Measurement Range0°C to 300°C
Accuracy±0.5°C or better
DisplayDigital multi-channel display
Data LoggingPC interface / USB / Software
RecordingReal-time temperature recording

Electrical Control Panel

Integrated control panel mounted with the chamber including:

ComponentSpecification
Auto Transformer10 Amp rating
Digital VoltmeterPanel mounted
MCB ProtectionIncluded
Power ON/OFF SwitchProvided
Indicator LampsPower / Heater status
Hour MeterTime totalizer for test duration
Terminal BlocksFor thermocouple connections
Panel TypePowder coated control panel

Optional Ambient Heating System

To simulate higher ambient conditions during testing.

ParameterSpecification
Heating TypeElectric air heaters
Heating ChamberInsulated heater chamber at bottom
Temperature RangeAmbient to 50°C
Temperature ControlPID Temperature Controller
Control ElementsContactor, MCB protection
Heat SelectionHeater selector switches
Heating MethodSlow heating with uniform distribution

Safety Features

  • MCB protection for electrical safety
  • Over-temperature protection
  • Proper earthing arrangement
  • Heater safety interlock
  • Electrical overload protection

Utilities Required

ParameterRequirement
Power Supply230 V / 1 Phase / 50 Hz
Connected LoadApprox. 2 – 3 kW
InstallationIndoor laboratory installation

Scope Of Supply

  • Draught Proof Chamber with perforated inner structure
  • Black matt internal surface finish
  • Control panel with electrical components
  • 16 Channel Temperature Data Logger
  • 16 Nos. Type-K Thermocouples
  • Auto transformer (10 A)
  • Digital voltmeter
  • Hour meter (time totalizer)
  • Electrical protection system
  • Optional heating system (if required)

Application

The system is suitable for:

  • Temperature rise testing of luminaires
  • LED lamps
  • LED bulbs
  • lighting accessories
  • Compliance testing as per IS / IEC lighting standards