BS EN 60079-35-1:2011

What is BS EN 60079-35-1 - Caplights for use in mines susceptible to firedamp about?  

IEC 60079-35 is a series on explosive atmospheres. BS EN 60079-35-1 specifies requirements for the construction, testing, and marking of caplights, including caplights with a point of connection for other equipment, for use in mines susceptible to firedamp (Group I – electrical equipment for explosive gas atmospheres as defined in IEC 60079-0). It deals only with the risk of the caplight becoming a source of ignition. 

BS EN 60079-35-1 supplements and modifies the general requirements of IEC 60079-0 except as indicated in Table 1. Where a requirement of this standard conflicts with a requirement of IEC 60079-0, the requirements of this standard take precedence. 

Compliance with BS EN 60079-35-1 will provide an EPL of Mb (see 4.1 of BS EN 60079-35-1). If an EPL of Ma is required, the caplight will need to conform to the requirements of 4.2 of BS EN 60079-35-1, which in turn refers to IEC 60079-11. 

It is expected that from time to time, cap lights conforming to BS EN 60079-35-1 (EPL Mb) will operate in atmospheres where the firedamp exceeds statutory levels that require the withdrawal of people from the high firedamp atmosphere to a non-hazardous area. 

In designing equipment for operation in conditions other than those given above, BS EN 60079-35-1 may be used as guidance; however, additional testing may be required. 

Who is BS EN 60079-35-1 - Caplights for use in mines susceptible to firedamp for? 

BS EN 60079-35-1 on explosive atmospheres will be relevant to all professionals working in explosive atmospheres and using other standards in the series, but specifically, those working with caplights electrical equipment, namely: 

• Companies involved in mining  
• Organizations manufacturing, testing, and certifying caplights for use in mines 
• Companies involved in security inspections and hazard management 
• Regulatory bodies 
• Electrical engineers 

Why should you use BS EN 60079-35-1 - Caplights for use in mines susceptible to firedamp?  

BS EN 60079-35-1 on explosive atmospheres specifies the general requirements for construction, testing, and marking of caplights for use in mines. 

BS EN 60079-35-1 provides you with the essential criteria against which the ignition hazards can be assessed and gives guidance on the design and control parameters that can be used to reduce such hazards. 

As a user of BS EN 60079-35-1, you will be able to acquire a safety device for using it inside or outside explosive atmospheres which requires a safe functioning of equipment and protective systems with respect to the risks of explosion. 

As a user of BS EN 60079-35-1, you can be ensured requirements for the construction, testing and marking of caplights, including caplights with a point of connection. With obedience and compliance to BS EN 60079-35-1, you can efficiently manufacture caplights for use in mines. BS EN 60079-35-1 helps you to build consumer trust and confidence in the product. With BS EN 60079-35-1 you can be ensured that the products consistently meet and exceed quality assurance targets. 

What is changed since the last update?  

BS EN 60079-35-1:2011 supersedes BS EN 62013-1:2006, which is withdrawn.  

BS EN 60079-35-1:2011 includes some technical changes with respect to BS EN 62013-1:2006. These include: 

• Provision has also been provided for a means to assess caplights to EPL Ma 
• Table 1 introduced to identify the clauses of EN 60079-0 which are excluded 
• The requirements for caplights conforming to EPL Mb defined 
• The additional requirements for caplights conforming to EPL Ma defined 
• Thermal protection of electronic components added 
• Additional requirements applied to cells and batteries