Safety Topics Database
An ordered history of all daily safety briefings and memos.
2026
July · Click to expand
- Day 12
HAZOP to LOPA Safety Lifecycle
- Day 11
GFLI Testing in IT Systems
- Day 10
The 'Cone of Protection' Myth
- Day 09
IS Isolators vs. Zener Barriers
- Day 08
VFD Output Filters: Sinusoidal vs. dV/dt
- Day 07
Grounding in High-Resistivity Soil
- Day 06
OT Security: Physical PLC Port Guarding
- Day 05
LOTO of Parallel Generators
- Day 04
SF6 Gas Leakage & Decomposition
- Day 03
HV Testing: Safety Grounding & Discharging
- Day 02
Duval's Triangle DGA Diagnostics
- Day 01
Ferroresonance in Medium Voltage Systems
June · Click to expand
- Day 30
Medium Voltage Shield Grounding
- Day 29
Transformer Buchholz Relay Protection
- Day 28
Substation Main-Tie-Main Interlocking
- Day 27
SIS Proof Testing: Bypass Management
- Day 26
Optical Fiber Temperature Sensing (DTS)
- Day 25
Neutral-to-Ground Bonds in Sub-Panels
- Day 24
BESS Arc Flash Calculations
- Day 23
Static Transfer Switch (STS) Failure Modes
- Day 22
Data Center Grounding: The Signal Reference Grid (SRG)
- Day 21
Understanding Incident Energy in High-Voltage Switchgear
- Day 20
Using Proper Stress Cones in Medium Voltage Terminations
- Day 19
Motor Insulation Degradation in High Moisture Areas
- Day 18
The Risks of Using Incorrectly Rated Fuses in Motor Control Centers
- Day 17
The Difference Between Control Reliable and Safety Rated
- Day 16
Corrosion in Junction Boxes: The Silent Fault Waiting to Happen
- Day 15
Isolating Hydraulic Energy: The 'Other' LOTO
- Day 14
Static Electricity in Dust-Heavy Environments
- Day 13
Thermal Imaging: Spotting Loose Terminations Before They Fail
- Day 12
The Hazards of Bypassing Safety Interlocks on Conveyor Systems
- Day 11
Hazards of Moisture Ingress in Explosion-Proof Enclosures
- Day 10
Understanding the Limitations of Non-Contact Voltage Testers
- Day 09
VFD Cable Shielding: Preventing Unintended Equipment Operation
- Day 08
The Dangers of Temporary Wiring in Mining Operations
- Day 07
Hazardous Location Wiring: Class I, Div 1 vs. Div 2
- Day 06
Short-Circuit Current Rating (SCCR) of Industrial Control Panels
- Day 05
Spoofing Analog Signals via Open Ports
- Day 04
The Hazard of 'Troubleshooting by Replacement'
- Day 03
Point-Sensor vs. Fiber-Optic Arc Flash Relays
- Day 02
Current-Limiting Fuses vs. Breakers for Arc Flash Mitigation
- Day 01
Exothermic Welding vs. Mechanical Compression in Ground Grids
May · Click to expand
- Day 31
Standard Residential Panel Breakers: What They Actually Protect
- Day 30
Touch and Step Potentials in Substation Yards
- Day 29
CSA Z462: Energized Electrical Work Permit and Understanding
- Day 28
Network Segmentation (Purdue Model) for OT Systems
- Day 27
Shift Handover Failures in Electrical Maintenance
- Day 26
Trapped Energy: The Hazards of Power Factor Correction Capacitors
- Day 25
The Safety Limitations of Ground Rods vs. Ground Rings
- Day 24
MCC Remote Racking: Removing the Worker from the Hazard
- Day 23
Electrical Safety Inside Confined Spaces
- Day 22
The Unforgiving Nature of Battery Room Safety
- Day 21
The Silent Killer of 3-Phase Motors: Single-Phasing
- Day 20
The Invisible Hazard of Megger Testing
- Day 19
ESD vs. Intrinsically Safe Tools: A Deadly Mix-Up
- Day 18
Understanding Cable Fire Ratings: FT4, FT6, and LSZH
- Day 17
Understanding Arc Fault Circuit Interrupters (AFCI)
- Day 16
Zero Energy State: Looking Beyond Electrical LOTO
- Day 15
The Hidden Danger of Fiber Optics in High-Voltage Areas
- Day 14
GFCI vs GFP: Understanding the Difference in Ground Fault Protection
- Day 13
The Critical Difference Between Grounding and Bonding
- Day 12
Lightning Detection as an Instrumented Safety Control
- Day 11
The Critical Difference Between Arc Flash and Arc Blast
- Day 10
The Lethal Gap: Hazards of Open Current Transformer (CT) Circuits
- Day 09
The Invisible Shield: Computer Vision for Electrical Boundaries
- Day 08
The Danger of Forced Contacts and Bridged Interlocks
- Day 07
Clamping the Spike: How Surge Protection Devices Reduce Hazards
- Day 06
The Mark of Safety: Ensuring Devices are CSA and cUL Listed
- Day 05
The Brains of the Operation: Safety Relay Logic Methodologies
- Day 04
The Unseen Ground Loop: Dangers of Improper Shield Grounding
- Day 03
What is SIL (Safety Integrity Level)?
- Day 02
The Safety ROI of Proper Equipment Maintenance
- Day 01
The Hazards of Incorrect VFD Carrier Frequencies
April · Click to expand
- Day 30
True-RMS vs Averaging Meters: Why Your Ammeter is Lying to You
- Day 29
Predictive Proof Testing via Smart Instruments
- Day 28
The 2oo3 Voting Logic Gold Standard
- Day 27
"The Black Box Problem" — Why AI Cannot Yet SIL-Certify
- Day 26
High Performance HMI: Saving Seconds to Save Systems
- Day 25
Capacitive Coupling: Reading Ghost Voltages
- Day 24
High-Resistance Grounding (HRG) Systems Explained
- Day 23
AI Pattern Recognition for Mining Ground Faults
- Day 22
Control vs. Safety Separation (BPCS and SIS)
- Day 21
Dynamic Arc Flash Incident Energy Modeling
- Day 20
The De-Energize to Trip Principle: Why SIS Coils Stay Hot
- Day 19
Sunday: The Hazard of Leaving Breaker Panel Covers Off Overnight
- Day 18
Saturday: Safely Using Motor Phase Rotation Meters
- Day 17
Friday: Understanding System Bonding Jumpers in Transformers
- Day 16
Thursday: Bump Testing vs. Calibration for Gas Monitors
- Day 15
Wednesday: De-rating Ampacity in Overfilled Cable Trays
- Day 14
Tuesday: The Hidden Threat of VFD Induced Shaft Voltages
- Day 13
Monday: Alarm Floods and HMI Blindness
- Day 12
Sunday: Control Systems: The Danger of "Forces" in PLC Logic
- Day 11
Saturday: Utility-Scale Solar: DC Arc Faults Don't Stop
- Day 10
Friday: Understanding the "Tryout" in LOTO
- Day 09
Thursday: Normalizing Deviations with PPE
- Day 08
Wednesday: Multimeter Discipline: The "Deadly Jack" Mistake
- Day 07
Tuesday: The Hidden Danger of Dual-Source Equipment
- Day 06
Monday: "Test Before Touch": The Ultimate Lifesaver
- Day 05
Sunday: The Hidden Danger of Back-fed Control Transformers
- Day 04
Saturday: Why Aluminum-to-Copper Terminations Burn Down Panels
- Day 03
Friday: The Lethal Myth of Earth as a Fault Return Path
- Day 02
Thursday: Current Transformer (CT) Open-Circuit Hazards
- Day 01
Wednesday: Motor Space Heater Hazards During LOTO
March · Click to expand
- Day 31
Tuesday: VFD DC Bus Discharge Wait Times
- Day 30
Monday: Intrinsic Safety (IS) Barrier Bypassing
- Day 29
Safety PLCs, Relays, and Fail-Safe Architecture
- Day 28
The 10-Foot Rule: Mobile Equipment and Overhead Lines
- Day 27
The 'I’ve Done This A Thousand Times' Complacency Trap
- Day 26
Understanding CAT Ratings on Voltage Test Meters
- Day 25
The First 60 Seconds of an Arc Response
- Day 24
Group LOTO: The Master Lockbox Method
- Day 23
The Hard Limit of Rubber Insulating Gloves
- Day 22
Sunday: Emergency Stop Testing
- Day 21
Saturday: Preventing Ground Faults
- Day 20
Friday: Identifying Frayed Cables
- Day 19
Thursday: Inspecting Your PPE
- Day 18
Wednesday: Arc Flash Boundaries
- Day 17
Tuesday: Lockout/Tagout Verification