Service Information: Personal protective equipment for working on high-voltage on-board electrical systems

Protective scope

The personal protective equipment (PPE) provides protection against potential hazards when working on vehicles on which the condition of the HV on-board electrical system cannot be clearly determined (e.g. accident vehicles).

Potential hazards are:

 Electrical hazards through electric shock (e.g. through contact protection that is no longer fully effective).

 Thermal hazards through electric arcing in event of short circuit or when detaching plug-in connectors.

 Chemical hazards caused by leaking media (e.g. electrolyte from a mechanically damaged high-voltage battery).

P54.00-A005-80

Requirements and standards for protective gloves (3)

 Electric strength of at least 1000 V AC/1500 V DC (maximum voltage in vehicle 750 V DC, correct as of 2014).

 Thermal protective effect as per DIN EN 60903:2012 Section 5.8.2 must be documented.

 Resistance to acids and oils.

The above-mentioned requirements are deemed to be sufficient, because a thermal resistance is also given.

In Europe, protective gloves (3) must be used that comply with the DIN EN/IEC 60903 standard, protection class 0 (R (acids + oil + ozone) + C (low temperature)). The appropriate identification for the requirements are listed in the table below.

Requirements and standards for Class 2 arc flash jackets (4) and face/eye protection (2) with electrician's helmet without ventilation holes (1)

 Class 2 arc flash jackets (4) are subject to the requirements as per EN ISO 11612.

 Face/eye protection (2) is subject to the requirements as per EN 166.

As an option, face/eye protection (2) with an electrician's helmet without ventilation holes (1) as per EN 397 and EN 50365-2002-11 may be worn.

Use

 Manual disabling.

 Initial diagnosis of accident vehicles.

 Handling mechanically damaged high-voltage batteries (removal, assessment, storage in secure containers).

Procurement

Personal protective equipment (PPE) in accordance with the country-specific requirements prevalent in the free market as per the specified standards or scope of protection must be made available to the affected employees.

We recommend protective gloves (3) with cotton lining or, for reasons of hygiene, additional cotton glove liners.

Company-owned sales and service outlets and Mercedes­Benz contract partners can order personal protective equipment (PPE) on-line through the Mercedes­Benz Partner Shop at

https://partner-shop.mbvd.de

For company-owned sales and service outlets, the approvals as per the "PSA Catalog" apply.

Check

1 All tooling, equipment, protection products and aids, which are specified for safe operation and working on, with or in the vicinity of electrical systems, must be suitable for such use, be in proper working condition and be deployed as intended.

2 Visual inspection of protective gloves (3) before each use for cracks, piercing, abrasion or any other form of damage.

3 Check protective gloves (3) for leaks before each use by trapping air in the glove (3) and rolling it up (or by using a pneumatic glove tester).

4 Additional tests as specified by manufacturer.

Marking
Color code, protection classes and standards for protective gloves (3)
Protective gloves (3): Color code as per protection class 0, red (as per EN 60903)

P54.10-4194-80