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HTMLText_54771B61_4054_7CDC_41BC_8AF3DB6B0941.html = Access doors
Refer to: 4.D
Secured access to prevent unauthorised entry. They must open outwards and have safety signage.
Arc Flash Warning Label
Refer to: 4.A & 4.D
Arc flash warning label displayed to remind workers of the risk and state PPE requirements.
Earthing system
Refer to: 4.4
Earthing system is part of a safe electrical installation.
Exit signage
Refer to:
Exit signs in a substation can assist in several ways:
Emergency Evacuation: Exit signs provide clear guidance and indicate the designated exit paths in the substation. In case of an emergency, such as a fire, power outage, or other hazardous situations, exit signs help personnel quickly locate and navigate towards the nearest exits, ensuring a safe and efficient evacuation.
Visibility in Low-Light or Smoke Conditions: Substations may have areas with limited lighting or potential smoke during emergencies. Exit signs are typically equipped with illuminated or self-luminous features, making them highly visible even in low-light or smoky conditions. This ensures that personnel can easily locate the exits and safely exit the substation.
Orientation and Wayfinding: Substations can be complex with multiple rooms, corridors, and equipment. Exit signs serve as important wayfinding aids, providing clear directions and helping personnel orient themselves within the substation. They guide personnel to the nearest exits, reducing confusion and ensuring a swift evacuation.
Compliance with Regulatory Standards: Many safety regulations and codes require the presence of exit signs in commercial and industrial buildings, including substations. Compliance with these regulations is essential to ensure the safety of personnel and meet legal obligations. Installing and maintaining exit signs helps substations adhere to these standards.
Peace of Mind: Exit signs provide peace of mind to personnel working in the substation. Knowing that clear exit routes are marked and easily accessible in case of an emergency can reduce anxiety and increase confidence in the substation's safety protocols.
In summary, exit signs in a substation assist in emergency evacuation, provide visibility in low-light or smoke conditions, aid in orientation and wayfinding, ensure compliance with regulations, and offer peace of mind to personnel. They are an important component of maintaining a safe working environment in a substation.
Fire extinguisher
Refer to:
At least one portable manually operated fire extinguisher suitable for suppressing an
electrical fire should be installed in an easily accessible location external to (or immediately
internal to) all main entries to each compartment of an high voltage installation
Hot stick & HV emitter testing
Refer to: 8.A
"Modiewok" used to prove that equipment is de-energised, it needs to be within calibration date.
Isolation Points
Refer to: 8
Isolation points
Refer to:
Isolation points on outgoing circuits from a switchboard are beneficial for several reasons:
Safety during Maintenance: Isolation points allow for the safe maintenance and repair of specific outgoing circuits. By isolating these circuits from the power source, maintenance personnel can work on them without the risk of accidental contact with live electrical components. This helps prevent electrical shocks and other accidents.
Enhanced System Reliability: Isolation points provide the ability to isolate and troubleshoot individual outgoing circuits. If a fault or issue occurs in a specific circuit, it can be isolated while the rest of the system remains operational. This minimizes the impact of any problems and helps ensure uninterrupted power supply to other circuits.
Flexibility and Scalability: Isolation points enable the addition or removal of outgoing circuits without affecting the rest of the system. This flexibility allows for easier system modifications, upgrades, and expansions. It also simplifies the process of isolating and disconnecting specific circuits when they need to be taken out of service for maintenance or other purposes.
Compliance with Regulations: Isolation points are often required by electrical safety regulations and standards. Compliance with these regulations is important to ensure the safety of personnel and to meet legal requirements. Isolation points on outgoing circuits help demonstrate adherence to these regulations and a commitment to safety in the electrical system.
Overall, isolation points on outgoing circuits from a switchboard provide safety during maintenance, enhance system reliability, offer flexibility and scalability, and contribute to compliance with electrical safety regulations. They are important for the proper functioning and safe operation of electrical systems.
Lighting
Refer to:
To ensure visibility in all circumstances, including emergencies.
Notice boards
Refer to: 4.D
Notice board showing single line diagrams and important substation information.
Remote switching for HV
Refer to: 4.C & 4.3
Remote switching of HV equipment is installed so it allows operation at a safe distance and remove the risk of arc flash hazards to operators when switching.
Service areas
Refer to:
Service areas comprise, access areas, handling passages and escape routes.
Access areas shall be adequately dimensioned for carrying out work, operating switchgear and transporting equipment, and to enable work to be carried out safely.