Login
  • Defect Library
    • Basement
      • Structural
      • Architectural
      • Services
    • Wet Area
      • Structural
      • Architectural
      • Services
    • Façade
      • Concrete
      • Brickwall
      • Plaster Wall
      • Painted Wall
      • Precast Wall
      • Cladding and Curtainwall
      • Tiled Wall
      • Access System
      • Air Pollutants
      • Falling Objects from Facades
      • Staining of Facades
    • Rooftop
      • Structural
      • Architectural
      • Services
    • Common Areas
      • Outdoor Open Spaces
      • Indoor Open Spaces
      • Staircases
      • Landscaping
      • Swimming Pools
    • M&E Services
      • HVAC
      • Electrical
      • Plumbing and Sanitary
      • Fire Protection
      • Elevator
    • Environmental
      • Fungus & Mould
      • Algae
      • Plant in Buildings
      • Root Penetration
      • Termite Attacks
      • Acid Rain
    • Green Features
      • Roof/Sky Garden
      • Vertical Greenery
      • BIPV/PV
      • Façade Coatings
      • LED Walls
  • Material Manual
    • Wet Area
      • Floor Components
      • Floor and Wall Finishes
      • Jointing Material
      • Ceiling Components
    • Façade
      • Structural Frame
      • Masonry
      • Concrete Wall
      • Finishes
      • Cladding
      • Curtain Walling
      • Façade Assessor
    • Basement
      • Floor/Wall Component
      • Finishes
    • Rooftop
      • Concrete Deck
      • Metal Roofing
      • Pitch Roof
      • Rain Water Outlet
      • Roof Coating
    • Common Materials
      • Concrete
      • Sealant
      • Glass
      • Self-Cleaning Coatings
    • Common Phenomenon
      • Efflorescence
      • Calthermite Stalactite
      • Chemical Attack
      • Concrete Spalling
      • Reinforcement Corrosion
      • Carbonation
      • Structural Crack
      • Non-Structural Crack
      • Alkali-Silica Reaction
      • Floor Tile Popping
  • Non-Destructive Testing
    • Vibration
    • Stress & Strain
    • Mechanical
    • Microwave
    • Optical
    • Penetrating Radar
    • Electromagnetic and Electronic
    • Sonic and Ultrasonic
    • Thermal and Infrared
    • Chemical and Analytical
    • Laser
  • Remedial
    • PU injection
    • Epoxy injection
    • Concrete spalling repair
    • Impregnation (Chemical Infusion)
    • Strengthening
  • Maintainability Scoring System
    • COMASS Calculator
    • Components
      • Wet Area
      • Façade
      • Basement
      • Roof
      • Sanitary-Plumbing
      • HVAC
      • Elevator
      • Electrical
      • Fire Protection

Service switch jam

  • Homepage
  • >
  • Defect Library
  • >
  • Building Components
  • >
  • MEP Systems
  • >
  • Elevator
  • >
  • Lobby Landing and Accessories
  • >
  • Service switch jam
  • Causes

Improper and forceful use of other keys in the slot of mechanic’s or fireman’s service switch – not guarded, careless maintenance.
Defect Library Material Manual Non-Destructive Tests Maintainability Scoring System About Us
2025 National University of Singapore. All Rights Reserved.
Powered by · Best viewed in