FREQUENTLY ASKED QUESTIONS

What are substation and transformer doors?

Substation and transformer doors are specialised doors designed to provide secure access, ventilation, and protection for electrical substations and transformer enclosures.
Why is ventilation important for these doors?

Ventilation is crucial to dissipate heat generated by electrical equipment, prevent overheating, and maintain a stable internal environment, which is essential for equipment longevity and efficiency.
Can vents be included in fire doors for substations?

No, fire doors are designed to prevent the spread of fire and cannot have vents. For facilities requiring fire doors, alternative ventilation methods, such as extraction systems or wall-mounted louvers, should be used.
What materials are typically used to construct these doors?

Substation and transformer doors are usually made from robust materials such as galvanized steel to withstand harsh environment
Are these doors customisable?

Yes, Stronghold offers customisation options, including door size, finish, hardware, and security features to meet specific site requirements.
What security features are available for these doors?

Security features can include high-strength locking systems, anti-tamper designs, and reinforced construction to prevent unauthorised access.
What should I consider when installing these doors?

Consider the environmental conditions, required ventilation, security needs, and compliance with local regulations. Professional installation is recommended to ensure proper function and safety.
Are there specific regulations governing these doors?

Yes, installation must comply with local electrical safety and building standards. Always check current regulations before installation to ensure compliance.
Do these doors require regular maintenance?

Yes, regular maintenance is necessary to check for wear and tear, ensure security features remain functional, and confirm that ventilation components are unobstructed.
What happens if my substation requires both fire safety and ventilation?

If fire safety is a concern, you must use fire-rated doors separately and incorporate ventilation through additional methods, like external louvers or ventilation systems.
Can these doors protect against environmental hazards?

Yes, they are designed to be resilient against various environmental conditions, such as extreme weather, corrosion, and UV exposure, depending on their material and construction.
How do I choose the right door configuration for my substation?

Assess your security, ventilation, and environmental needs, and consult with a professional to ensure that the door configuration meets all necessary regulations and operational requirements.
Is professional consultation necessary?

Professional consultation is recommended to ensure that all safety, regulatory, and operational requirements are met, particularly in complex installations or challenging environments.
Do substation and transformer doors have a fire rating?

No, substation and transformer doors are not typically fire rated. Their primary function is to provide secure entry and ventilation for electrical equipment, not to contain fire.
What fire rating does this door have?

This door is available with various fire ratings, such as 30, 60, and 120 minutes, to meet different safety requirements and building codes.
Is the door certified and compliant with relevant safety standards?

Yes, our fire doors are certified and comply with SANS 1253 (SANS 10400-T) local standards, ensuring the highest level of safety and reliability.
What materials is the door made from?

Our standard fire doors are constructed from a combination of materials like Steel, Vermiculite, Magnesium Oxide, Solid wood edging and MDF, designed to withstand high temperatures and provide optimal protection.
Does the door come with hardware, or does it need to be purchased separately?

No, the door comes with hinges if Door and Frame is ordered as a unit, otherwise hardware options can be purchased separately to suit specific needs.
What sizes are available, and are custom sizes an option?

We offer a range of standard sizes, and custom dimensions are available upon request to fit unique installation requirements.
Is installation included, or do you provide installation guidelines?

Installation is not included, but we do have installations teams that install in the Gauteng-area. This is quoted for separately.
What are the lead times for manufacturing and installation?

Manufacturing time can vary depending on quantity and design. Typically, 15 to 20 working days from payment date and all information received. Manufacturing lead times will be confirmed on placing of orders. Delivery and Installation scheduling will be scheduled upon receipt of order and payment.
Does the door have soundproofing or insulation properties?

Yes, with acoustic seals and some modifications, our fire doors also offer soundproofing and thermal insulation properties, enhancing comfort and efficiency.
Can the door be customised, such as for window cutouts or specific finishes?

Customisation options are available, including window cutouts, special finishes, and more, allowing the door to fit your aesthetic and functional needs.
What is the warranty or guarantee period?

Our fire doors come with a 1-year warranty, covering manufacturing defects and ensuring peace of mind. (Please also refer to storage of fire doors)
Are there specific maintenance requirements?

Regular maintenance checks are recommended to ensure operational integrity. (See Guideline to maintaining Fire Doors)
Does the door come with a self-closing mechanism?

No, all ironmongery including door closers are ordered separately and factory fitted
What are the return or exchange policies?

We do not offer a return or exchange policy on doors as each door is manufactured on order.
Is there a technical support team available for post-purchase inquiries?

Yes, our technical support team is available to assist with any post-purchase inquiries and provide ongoing support.
What is galvanised cleaning?

Galvanised cleaning refers to the process of removing contaminants like oils, dirt, or residues from a galvanised steel surface to ensure proper adhesion and quality of the paint.
What is the easiest way to clean galvanised steel before painting?

Wipe with Vinegar: Use a cloth soaked in white vinegar to clean the surface and remove oils and residues. Dry the Surface: Let it air dry or wipe with a clean, dry cloth.
What other chemicals can be used to clean galvanised steel?

You can use the following cleaning solutions: Mild Detergent: Warm water mixed with mild dish detergent works well for removing dirt and grease. Acetone: An effective solvent for removing oils; be sure to use it in a well-ventilated area. Denatured Alcohol: Great for degreasing, it evaporates quickly after cleaning. Commercial Metal Cleaners: Look for products designed specifically for galvanised surfaces, which may contain phosphoric acid. TSP (Trisodium Phosphate): A heavy-duty cleaner for stubborn grime, but ensure you rinse thoroughly afterward.
Do I need to rinse the surface after using a cleaner?

Yes, always rinse the surface with water after using any chemical cleaner to ensure that no residue is left before painting.
How should fire doors be stored before installation?

Fire doors should be stored in a cool, dry area, laid flat on a level surface to prevent warping. It's important to protect them from humidity, extreme temperatures, and direct sunlight.
Can fire doors be stacked on top of each other?

It's best to minimise stacking to avoid damage. If stacking is necessary, ensure that each door is separated by protective material like foam or cardboard to prevent scratches and dents. Double doors must be stored with support blocks under the door leafs, to keep them level and prevent warping.
Can fire doors be stacked on top of each other?

It's best to minimise stacking to avoid damage. If stacking is necessary, ensure that each door is separated by protective material like foam or cardboard to prevent scratches and dents. Double doors must be stored with support blocks under the door leafs, to keep them level and prevent warping.
How long can fire doors be stored?

Fire doors can be stored indefinitely if the storage environment is controlled and stable, and door leafs are properly supported. However, regular checks should be conducted to ensure no damage occurs over time.
Is there a specific temperature range for storing fire doors?

Fire doors should be stored at temperatures typically between 10°C and 30°C to prevent any material degradation or warping.
Should fire doors be stored in their original packaging?

Yes, keeping the doors in their original packaging is recommended to protect them from dust, moisture, and physical damage until installation.
Can fire doors be stored upright?

It is generally recommended to store fire doors flat. If they must be stored upright, ensure they are securely braced to prevent them from falling and getting damaged.
What should be done if a fire door gets slightly damaged during storage?

Any visible damage should be assessed by a professional. Minor scratches or dents can sometimes be repaired, but significant damage may require replacement to ensure the door maintains its fire-resistance properties.
Are there special considerations for storing fire-rated glass doors?

Yes, fire-rated glass doors should have additional protection over the glass components to prevent accidental breakage. They should be stored carefully to avoid any impact or pressure on the glass.
What should I do if a fire door becomes wet?

If a fire door gets wet, dry it as quickly as possible using towels or fans to prevent water from penetrating deeper into the materials. Keep the door in a well-ventilated area until it is completely dry.
Can water exposure affect the fire rating of a fire door?

Yes, prolonged exposure to water can compromise the structural integrity and fire-retardant properties of the door. It is important to inspect the door for any signs of damage and consult with a professional if any issues are suspected.
How do I know if a wet fire door has been damaged?

Look for signs of warping, swelling, or delamination in the door or frame. These indicate that the door has been compromised, which may affect its performance in a fire scenario.
Can a fire door recover from water damage?

Minor water exposure might not cause lasting damage if dealt with quickly. However, significant or repeated exposure can lead to irreversible damage, requiring assessment from a professional and possibly replacing the door.
Can a fire door recover from water damage?

Minor water exposure might not cause lasting damage if dealt with quickly. However, significant or repeated exposure can lead to irreversible damage, requiring assessment from a professional and possibly replacing the door.
Should I repaint or reseal a fire door that's had water exposure?

Repainting or resealing may be necessary after ensuring the door is structurally sound and fully dried. Use paint or sealants that are compatible with fire doors and adhere to manufacturer's recommendations.
Does water exposure void a fire door's warranty?

Warranties will be voided if the door is damaged due to improper storage, including water exposure.
Are there materials or coatings that can prevent water damage to fire doors?

Some fire doors come with water-resistant coatings or finishes that help protect against moisture. Ensure that these are intact and consider periodic maintenance to maintain their effectiveness. Always inform the manufacturer if the door will be exposed to weather elements or is for a coastal area.