Alard Electrical Ltd offers a wide range of Electrical Preventative Maintenance Programmes covering all LV Electrical distribution components.

• Maintainence and Repairs
• Battery Banks
• Branch Circuit Breaker Panel
• Bus Duct
• Combination Starter Motor
• Disconnect Safety Switches
• Distribution Panel
• Emergency Exit Lighting

DISCONNECT/SAFETY SWITCH

Disconnect/Safety Switches are switching devices that are usually wall mounted or contained in the main distribution panel.

PURPOSE:

A Disconnect/Safety Switch is a manual switch housed in a metal enclosure that is used to disconnect the power supply to a piece of equipment. There are both fused and non-fused disconnect switches.

TYPICAL PREVENTIVE MAINTENANCE TASKS:

Typical Energised Maintenance Tasks:

• Visual Inspection
• Inspect Switch Blades for Corrosion
• Perform Infrared Thermography
• Clean Exterior of Unit
• Note National (Or Other Appropriate) Electrical Safety Code Violations/Hazardous Conditions

Recommended Frequency:

No less than annual for all tasks.

Typical De-Energised Maintenance Tasks:

• Inspect Arc Shields
• Inspect Fuse Holders (Fused Disconnect)
• Record Fuse Ratings
• Assure All Connections are Tightened to Proper Torque or Perform Contact Resistance Test
• Clean Interior of Unit

Recommended Frequency:

No less than once every three years for all tasks (more frequent for older facilities).

NOTE: The listed tasks are representative “samples” only