Standardized inspection methodology for identifying electrical safety hazards associated with AGL equipment, electrical panels, CCRs, control systems, cables, enclosures, maintenance areas, and portable electrical equipment — covering isolation, LOTO, earthing, bonding, warning signage, and safe-access verification.
Critical control — This division is an inspection and verification framework only. Actual isolation, switching, LOTO application/removal, electrical testing, and energized-work controls shall be performed only by authorized/competent personnel in accordance with the applicable airport safety procedures, electrical safety rules, and approved risk assessment. A visually healthy CCR, panel, transformer, or AGL circuit must not be assumed electrically safe merely because no external defect is visible.
Inspection of protective earthing connections associated with AGL electrical equipment, including protective-earth conductors, earth terminals, connection points, and applicable bonding to the protective earthing system.
Inspection of equipotential bonding arrangements between metallic components, electrical cabinets, doors, panels, frames, equipment, and associated structures where bonding is applicable.
Verification that applicable electrical isolation arrangements, isolation points, isolation devices, and isolation procedures/instructions are correctly identified, in good condition, and available to authorized personnel.
This is a verification check only. Actual isolation, switching, and de-energization shall be carried out solely by authorized/competent personnel under an approved isolation procedure and risk assessment.
Inspection of electrical hazard labels, warning signs, high-voltage warnings, and equipment/circuit identification labels for presence, legibility, visibility, and correspondence with the actual equipment or circuit.
Inspection of lockout/tagout locks, tags, hasps, and associated lockout devices for correct identification, physical condition, availability, and storage arrangements.
Application or removal of LOTO devices shall be performed only by authorized/competent personnel under an approved isolation procedure. This check verifies device condition and correspondence, not the isolation itself.
Inspection of electrical cable protection against mechanical, environmental, and electrical hazards, including cable glands, entries, seals, routing, support, and temporary cable installations.
Verification that electrical panels can be safely accessed by authorized personnel and that unauthorized access is appropriately prevented, together with the physical, electrical, mechanical, and identification condition of the panel.
Inspection of electrical equipment enclosures for integrity and protection, including doors, seals, gaskets, and evidence of water ingress, contamination, or corrosion.
Verification of required working and access clearances around electrical equipment, including panel working space, separation from other hazards, and emergency access routes.
Verification that circuit breakers, fuses, isolators, overload devices, and other protective devices are correctly identified, accessible to authorized personnel, and correspond with their labels.
Inspection of the overall condition of electrical rooms and equipment areas, including access control, housekeeping, water ingress, ventilation, lighting, emergency equipment, and signage.
Inspection of portable electrical tools and equipment used for AGL maintenance, including power cords, plugs, earthing, enclosures, test/inspection records, and storage arrangements.
Common classification scheme, workflow, records, and safety boundaries that apply across all 12 Division 11 inspection topics.
Every observation should be assigned an appropriate status:
NormalEquipment/condition satisfactory and operating as expected.
DefectiveAbnormality or defect identified but equipment remains operational or condition does not require immediate withdrawal.
UnserviceableEquipment or system is not available for its intended function.
Immediate Action RequiredCondition presents an electrical, safety, or operational risk requiring immediate escalation to authorized personnel.
The following sequence applies across all Division 11 topics:
Each inspection record should include:
Electrical safety inspection is intended to
It does not replace
A visually healthy CCR, panel, transformer, or AGL circuit must not be assumed electrically safe merely because no external defect is visible. Every inspection should distinguish between:
Any condition involving exposed energized parts, unidentified isolation points, damaged electrical insulation, compromised earthing/bonding, unsafe access, water ingress into electrical equipment, damaged LOTO arrangements, or inadequate electrical clearances should be treated according to the applicable airport electrical-safety procedure and escalated to authorized personnel.
Quick answers about electrical safety inspection in the AGL Inspection Handbook.
Division 11 contains 12 published topics (Level 2, safety-critical and scheduled). It gives a standardized methodology for identifying electrical safety hazards associated with AGL equipment, electrical panels, CCRs, control systems, cables, enclosures, maintenance areas and portable electrical equipment.
It covers isolation, LOTO, earthing, bonding, warning signage and safe-access verification.
The sequence identifies the equipment and hazards, verifies isolation and LOTO, checks earthing and bonding, and inspects panels and enclosures. It then classifies, records, escalates, corrects, verifies and closes.
No. The division states that a visually healthy CCR, panel, transformer or AGL circuit must not be assumed electrically safe merely because no external defect is visible.
Every observation is assigned Normal, Defective, Unserviceable or Immediate Action Required. Immediate Action Required means the condition presents an electrical, safety or operational risk requiring immediate escalation to authorized personnel.
No. It does not replace isolation, switching or de-energization by authorized personnel, LOTO application or removal, electrical or earth-resistance testing, insulation-resistance testing, energized-work risk assessment and controls, or detailed engineering assessment.
Alongside the usual date, inspector, observation, status, action and sign-off fields, the record includes the equipment inspected, its identification and location, and the isolation and LOTO status at the time of inspection.
Yes. This handbook is an uncontrolled educational reference, not an approved procedure. The airport's approved inspection schedule, SMS procedures, ATC instructions, NOTAM procedures and local aerodrome regulations always take precedence, and the current revision of any official document should be verified before use.
Yes. Each inspection topic has a Download as Word option that produces an uncontrolled Word checklist template (description, a tick-box inspection table and an inspector sign-off block) for personal reference and internal training, to be reviewed and adopted under the user’s own document control.
Electrical safety inspection is where insulation, earthing and protective-device condition awareness begins. Go beyond identifying defects and build the technical knowledge to understand why abnormalities occur, how they affect system serviceability, and when further testing, troubleshooting, maintenance or corrective action is required.
Develop structured knowledge across:
Learn to connect the inspection process with the wider AGL engineering lifecycle.
Inspect with purpose. Understand the system. Act with technical confidence.
Please read before relying on any content on this page or on any record downloaded from it.