I have been asked by Trading Standards to carry out a report on some electrical work installed by another company (5 years ago). The 'new' wet room has basically rotted away over 5 years, it has now been completely removed by another firm and is in the process of being redone.
The work by the company being investigated involved changing a shower room into wet room. I.e a completely waterproofed shower room space.
The electrical work that the company installed was as follows. Would you agree with codes?
1. Installed an IP45 extractor fan in zone 1 (see picture) - No code
2. Installed an RCD fused spur just the other side of the partition (for fan). You could in theory reach over the partition and touch the switch - C2 (This would be zone 2 IF we don't class there as being a partition - see 'further points' below)
3. Installed 2 x switched FCU's approx 60mm away from partition - could in theory get sprayed from shower - C2
4. Put washing machine and tumble dryer just the other side of partition, meaning they are in zone 2 (or zone 1 if partition not classed as partition (see picture) - C2
Further points
The partition is in place, but it is not very high. The diagram in OSG shows the partition reaching the ceiling. So perhaps I do not even class this as a partition? Is it a permanent fixed partition?
The consumer unit had some C2's. Are we responsible for this if we are adding to the electrical installation even though we are not working on the consumer unit?
The bathroom lights are just outside the zones (2.27m high). They are not IP rated but they are ELV. They are not fire rated and there is living space above. Any codes here? These lights are not IP rated so (even though they are ELV) would they be suitable for location. The company did not install the lights.
There is one ELV MR16 light just the other side of the partition which would be in zone 2 if the partition is not classed as a partition. Again not IP rated.
lastly, the bathroom lights have no RCD protection. Does this mean there should be supplementary bonding to the towel radiator from one of the circuits in the location? In theory they could touch one of the ELV lights and radiator at the same time. I believe supplementary bonding would be required as it does not meet the requirements for omission in 701.415.2
Cheers all
The work by the company being investigated involved changing a shower room into wet room. I.e a completely waterproofed shower room space.
The electrical work that the company installed was as follows. Would you agree with codes?
1. Installed an IP45 extractor fan in zone 1 (see picture) - No code
2. Installed an RCD fused spur just the other side of the partition (for fan). You could in theory reach over the partition and touch the switch - C2 (This would be zone 2 IF we don't class there as being a partition - see 'further points' below)
3. Installed 2 x switched FCU's approx 60mm away from partition - could in theory get sprayed from shower - C2
4. Put washing machine and tumble dryer just the other side of partition, meaning they are in zone 2 (or zone 1 if partition not classed as partition (see picture) - C2
Further points
The partition is in place, but it is not very high. The diagram in OSG shows the partition reaching the ceiling. So perhaps I do not even class this as a partition? Is it a permanent fixed partition?
The consumer unit had some C2's. Are we responsible for this if we are adding to the electrical installation even though we are not working on the consumer unit?
The bathroom lights are just outside the zones (2.27m high). They are not IP rated but they are ELV. They are not fire rated and there is living space above. Any codes here? These lights are not IP rated so (even though they are ELV) would they be suitable for location. The company did not install the lights.
There is one ELV MR16 light just the other side of the partition which would be in zone 2 if the partition is not classed as a partition. Again not IP rated.
lastly, the bathroom lights have no RCD protection. Does this mean there should be supplementary bonding to the towel radiator from one of the circuits in the location? In theory they could touch one of the ELV lights and radiator at the same time. I believe supplementary bonding would be required as it does not meet the requirements for omission in 701.415.2
Cheers all