Ex db IIB + H2 + CS2 T6 Gb or Ex db IIB + H2 T5 or T4 Gb orEx db IIC T6 or T5 or T4 Gb
Ex tb IIIC T85°C or T100°C or T135°C Db
This certificate is issued as verification that a sample(s), representative of production, was assessed and tested and found to comply with the IEC Standard list below and that the manufacturer's quality system, relating to the Ex products covered by this certificate, was assessed and found to comply with the IECEx Quality system requirements. This certificate is granted subject to the conditions as set out in IECEx Scheme Rules, IECEx 02 and Operational Documents as amended.
This Unit verification certificate is issued as verification that the Apparatus identified on page 1, was assessed and tested and found to comply with the IEC Standard list below. This certificate is granted subject to the conditions as set out in IECEx Scheme Rules, IECEx 02 and Operational Documents as amended.
The apparatus and any acceptable variations to it specified in the schedule of this certificate and the identified documents, was found to comply with the following standards:
As this is a Unit Verification Certificate, no QAR is applicable as this certificate is specific to the items listed by serial number or other unique identification.
The flameproof enclosures (optical and /or acoustic signalization) type 218A. are made in light alloy AS13.
There are five types :
- 218A1 : buzzer for Group IIC - 218A2 : buzzer for Group IIB + H2 + CS2- 218A3 : flash lamp for Group IIC- 218A4 : flash lamp and buzzer combined for Group IIC- 218A5 : flash lamp and buzzer combined for Group IIB + H2 + CS2
All types are intended to be used in combustible dust Group IIIC.
Connections to the external electrical circuits are made via cable entries of a certified type.
The screws used for the assembly of the various parts of explosion-proof enclosures must be of quality higher or equal to 8.8 or A2-70.
The value of flameproof joints (lengths and gaps) are detailed on drawings FEF218A3 rev A and KLM218A2 rev.A.