Need urgent advice please help.

Question

I work for a small firm that delivers and installs hottubs and swim spas. When we turn up to the site to install the tubs, the electrics are already run from the house to an isolation switch, with a tail left all tested by an electrician. Myself and my team then wire in the 32amp cable to the tub whilst it's filling, put the panels back on and turn it on once full for the customer to use. 
 During this process there is no electrician present whilst we wire the tub or afterwards. 
 Myself and my team are unqualified, we dont do any sort of test to the tub once it's wired in the customer just jumps in once we're done. 
 I've quizzed my boss multiple times and he said it's completely legal as he considers me competent to wire in three wires. My question is firstly, is this actually legal to wire in, and secondly should any tests be done and certified from the tub to the isolation switch. 
 
 Thank you

gkenyon · Answer

I'm not so sure ... particularly for considering your own safety. 
 First, there ought to be some checking that the connection has been made properly ... particularly the continuity of earth conductors. 
 Second, who is deciding whether the existing connecting point is safe to connect to? 
 Third, what about checking the above for your own safety whilst working? 
 It's particularly important for peripatetic workers to protect themselves in different environments of the different properties they visit. 
 HSE provide guidance for people installing and maintaining domestic appliances, EIS35 Safety in electrical testing &ndash; service and repair of domestic appliances, which can be downloaded from this page: https://www.hse.gov.uk/pubns/eis35.htm 
 In my opinion, it's probably best to follow that type of guidance for the work you're doing. 
 On the downside, it might require some training, test equipment, and other safety equipment - so there is a cost involved.

Need urgent advice please help.

Community Rules & Guidelines