Installation technology – the essential role of workwear

Picture this: an installer is installing a boiler at a busy job site. While working, he trips over a loose pipe and loses his balance. Fortunately, he is wearing sturdy work boots with steel toe caps, which leaves him unharmed. Later that day, while working on an electrical installation, he accidentally causes a short circuit, creating an electric arc. This arc can cause serious burns, but thanks to his arc-resistant work clothes, he is protected from injury

Situations like this show how important proper workwear is in installation technology. Dangers can surface at any time, and the right clothing can prevent accidents. This article discusses the essential role of workwear for installers and provides practical recommendations to significantly increase their safety.

The Importance of Good Workwear at Electrical Installations

When working on electrical installations, proper workwear is essential to ensure the safety of installers. This clothing not only protects against physical hazards such as burns from arcing, but also has antistatic properties. The following explains how different types of workwear contribute to safety when working on electrical installations.

Protection against Arc and Electric Shock

Working with electrical installations involves the risk of short circuits, which can cause electric arcs. An arc occurs when electricity leaps through the air, which can lead to extreme heat, bright flashes of light and severe burns. Proper workwear is necessary to mitigate these hazards.

Essential garments and accessories for protection against electrical hazards are:

• Arc-resistant clothing: This clothing is specially designed to protect against the heat and energy of an arc. The material minimizes the risk of burns when exposed to an arc. It is critical that the clothing meets standards such as EN 61482, which provides protection against thermal hazards from electric arcs.

Our recommendations:

HAVEP 50428 JACKET Art. No.: 2.22.645.00	HAVEP 80570 PANTS Art. No.: 2.61.771.00

• Protective gloves: Installers must wear special gloves that protect against electric shock. These gloves must withstand a certain voltage, for example 1000V, depending on the specific work. The proper gloves comply with standard EN 60903, which specifies requirements for insulating gloves for electrical work.

Our recommendations:

ELECTRO LATEX GP-0 GLOVE Art. No.: 1.99.996.00	COMPOSITE CLASS 0 1000V ARC FLASH GLOVE Art. No.: 1.99.985.00

• Face and head protection: In addition to clothing, it is essential to protect the face and head from the extreme heat and flashes of light that an arc can cause. Face shields and helmets that meet arc-resistance standards provide the necessary protection to prevent serious burns.

Our recommendation:

MSA V-GARD 950 CLASS 2 UNVENTILATED SAFETY HELMET Art. No.: 6.16.876.02

Protection against Liquids and Chemicals

Although the risk of exposure to liquids and chemicals in installation engineering is limited, installers may sometimes come into contact with splashes of coolants or other nonaggressive fluids. In such cases, protective clothing against liquids is important, but it is often limited protection against light splashes.

• Clothing with limited protection against liquids: Workwear complying with standard EN 13034 (type 6) provides limited protection against liquid splashes and is suitable for situations where incidental contact with non-aggressive liquids is possible.

Our recommendations:

HAVEP 20441 AMERICAN OVERALL Art. No.: 2.12.495.00	HAVEP 50410 SOFTSHELL JACKET Art. No.: 2.22.652.00

Practical Recommendations for Workwear in Installation Engineering

To help installers work safely and efficiently, here are some practical tips regarding workwear:

• Choose the right size and fit: Work clothes should be comfortable and provide adequate freedom of movement. Clothing that is too tight or too loose can make working difficult or even dangerous.
• Regular maintenance: Check clothing regularly for wear and tear and follow the manufacturer’s maintenance instructions. Damaged workwear no longer provides proper protection.
• Replace damaged clothing in a timely manner: Worn or damaged clothing should be replaced immediately to ensure that the installer remains properly protected.

Investing in the right workwear and accessories, such as arc-resistant clothing, protective gloves and face protection, helps installers perform their jobs safely and significantly reduces the risks of serious injury.

Need help?

Want advice or additional information on which workwear or other PPE is suitable for working in installation technology? Contact us today at T. +31 (0)181 47 50 00. Our enthusiastic team will be happy to tell you more!

Installation technology – Protected working with high voltage

High-voltage installations are crucial components of modern electricity networks. Examples of work involved include installing, maintaining, operating and repairing these installations. These installations also pose significant risks to workers performing these activities, such as electrocution or arc flash.

In this article we tell you more about these hazards, relevant standards and recommend suitable PPE so that you can give clients the right advice when working with high-voltage installations.

Dangers of high voltage

Working with high voltage involves several dangerous risks, which can cause serious injury and sometimes even death. The two risks we will focus on in this article are:

• Electrocution: high voltage can cause electric shock, which varies in severity depending on the amperage and duration of exposure. Even small amounts of current can be life-threatening.
• Arc Flashover: arc flashovers (also known as “arc flashes”) involve extreme temperatures, bright flashes of light, flying (molten) shrapnel, pressure waves with loud bangs and toxic copper fumes. This can lead to serious risks to workers, including internal and external burns, blindness, hearing damage and copper poisoning from inhaled gases.

Important standards around high voltage

The above hazards show that the entire body is at risk of injury from electrocution or an arc. Protective clothing, head protection and arm and hand protection is therefore essential. These types of PPE come with some important standards that must be met.

Clothing: IEC 61482-2
This is an international standard specifically aimed at protecting workers from the thermal hazards of an electric arc in case of exposure. Within this standard, clothing can be tested in 2 ways, namely:

• IEC 61482-1 via the ‘open arc’ test: in this test, test material is struck by an 8kA arc from a distance of 30 cm. The resulting ATPV value (Arc Thermal Performance Value) indicates the amount of energy (cal / cm²) to which the material or garment can be exposed and still provide 50% protection against second-degree burns. The higher this value, the better the protection.
• EN 61482-2 via the “box test”: in this method, an arc is generated from one direction (the box) for a short duration (500ms) by short circuit at 4kA or 7kA. The result for this test is pass or fail. Passing 4kA results in APC 1 (Arc Protection Class) and passing 7kA results in APC 2. Passing APC 2 often requires combinations of different garments.

Clothing: IEC 61482-2
EN 60903 is a European standard that specifically addresses electrical safety of gloves. This standard tests insulating gloves for different voltages and divides them into 6 classes, namely 00 to 4 (see table below). Want to extend the life of insulating gloves while having the right mechanical protection? Then combine insulating gloves with suitable overgloves.

Head protection: EN 50365 & GS-ET-29

European standard EN 50365 applies to electrically insulating helmets for use when working up to a voltage of 1000V AC or 1500 Volts DC.

Face shields provide additional protection against the dangers of an electric arc, such as flying shards or molten pieces of metal. The face shields of this type of helmet are tested according to standard GS-ET-29. This standard, like the box test, tests for either 4kA or 7kA. This also results in either a Class 1 or Class 2 rating.

Foot protection: EN 50321

For work with voltage installations, electrically insulating boots conforming to EN 50321 are applicable. Boots meeting this standard with class 00 provide protection up to a maximum of 500V AC and boots meeting class 0 up to a maximum of 1000V AC.

Our recommendations

Clothing

HAVEP 50292 jacket	HAVEP 80345 pants	Sioen 7227 Nash jacket
Art. No.: 2.48.749.00	Art. No.: 2.27.633.00	Art. No.: 2.42.675.00

Gloves

Ansell ActivArmr RIG014Y glove	uvex power protect V1000 glove	Ansell ActivArmr 96-003 glove
Art. No.: 1.89.907.00	Art. No.: 1.91.411.00	Art. No.: 1.89.925.00

Head protection

MSA V-Gard 950 Class 1 unventilated safety helmet	MSA V-Gard 950 Class 2 unventilated safety helmet
Art. No.: 6.16.876.11	Art. No.: 6.16.876.12

Boots

Dunlop Acifort High Voltage safety boot SB

Art. No.: 5.25.132.00

ARC-Configurator
Not only the outer layer should provide protection against an arc; the underlying layers should also provide the worker with additional protection in the event that the hazard penetrates the outer layers. A higher level of ARC protection can be obtained by combining several layers of ARC protective clothing.

Opting for a multi-layer solution also offers workers more flexibility. For example, if they wear an ARC Class 1 long-sleeved polo shirt as a bottom layer AND an ARC Class 1 softshell jacket as a top layer, ARC Class 2 protection level is achieved. So the combination provides a higher level of protection, and one layer can be taken off if only ARC Class 1 is required.

Sioen 581A Telfs Polo shirt	Sioen 9705 Umiat softshell jacket	Sioen 9633 Playford softshell jacket
Art. No.: 2.60.102.00	Art. No.: 2.60.683.00	Art. No.: 2.49.100.00

Use Sioen’s ARC configurator to see what clothing you can combine for the different layers to achieve the desired results. This also shows the ATPV and ELIM values; which are also used to determine the required protection of a worker exposed to the thermal risks of an arc.

MORE INFORMATION

Need help?
Want advice or additional information on the right products when working with high voltage? Contact us today on T. +31 (0)181 47 50 00. Our enthusiastic team will be happy to tell you more!