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by Chris Langham
Sun Oct 19, 2008 5:43 pm
Forum: Architecture, Self Build and Design Forum
Topic: Part P regs.
Replies: 6
Views: 4047

Dear Old Sparky, Nearly all work is now notifiable under the Building Regulations. Bathrooms are special locations, and now the requirement under BS7671 .2008 is to have RCD protection to bathrooms. Formerly under BS7671 .2004 it was not mandatory in bathrooms, just good practice to install them. As...
by Chris Langham
Sun Oct 19, 2008 5:32 pm
Forum: Architecture, Self Build and Design Forum
Topic: Lintel size for load bearing wall opening
Replies: 7
Views: 41468

idkkdi,
Rosebery is right. If you do not know how to do these you will have to consult an engineer
by Chris Langham
Sat Oct 18, 2008 2:44 pm
Forum: Architecture, Self Build and Design Forum
Topic: structural lintels
Replies: 4
Views: 6046

Whatarascal, To know what sized beam etc required to carry any loading, you have to specify the loadings themselves. You must specify the material loading and the live loading before you can have any quantified idea of what 'size' to use. (that involves working out among other things, deflection, sh...
by Chris Langham
Sat Oct 18, 2008 2:36 pm
Forum: Architecture, Self Build and Design Forum
Topic: a little advice for a conservatory started before permission
Replies: 5
Views: 22586

Yami, It might be better for you to apply for a 'Certificate of Lawful Development' retrospectively, instead of full planning permision which costs about £150. You will still need to provide the following; OS plan @ a scale of 1:1250 Site plan to a sacle of 1: 200 or 500 Plans of the existing house ...
by Chris Langham
Sat Oct 18, 2008 2:24 pm
Forum: Architecture, Self Build and Design Forum
Topic: FLOOR LOADING FOR A HOT TUB
Replies: 4
Views: 4129

Inver, 2000kg is well in excess of the imposed load that a domestic floor can carry. You will have to work out the dead loading currently, and then work out the suggested live loading, (what is the wt when the tub is full by the way??). From that you can work out the bending moment, shear, deflectio...
by Chris Langham
Fri Oct 17, 2008 10:47 pm
Forum: Architecture, Self Build and Design Forum
Topic: Load bearing capability of joists
Replies: 2
Views: 3811

There is yes, divide the kN by 10
by Chris Langham
Mon Mar 19, 2007 12:16 pm
Forum: Electrics Forum
Topic: Consumer units
Replies: 7
Views: 7060

You should not be working on the consumer unit unless you are a competent person under Part P of the Building Regulations.

You are in fact talking about diversity here, which is well discussed in BS7671
by Chris Langham
Mon Mar 19, 2007 9:22 am
Forum: Electrics Forum
Topic: Fuse Boxes
Replies: 3
Views: 4310

The person who carries out the work should first carry out a Periodic Inspection to check that your existing system is compliant with BS7671. When it is, and after any remedial work has been carried out, he/she should give you an Elctrical Installation Certificate together with the two schedules of ...
by Chris Langham
Mon Mar 19, 2007 9:18 am
Forum: Electrics Forum
Topic: Blown fuses
Replies: 1
Views: 3279

Get a periodic inspection carried out, if two rooms are involved.

When did you last have the system checked out?

"Blown" fuses etc are a sign of a short or overcurrent flowing.
by Chris Langham
Mon Mar 19, 2007 8:38 am
Forum: Electrics Forum
Topic: Light works when on but blows fuse when switched off
Replies: 4
Views: 13182

The short answer has been given about your legal requirement. When a fuse or circuit breaker "blows" it is a sign that a high overcurrent has flowed in the circuit, that can be a short circuit normally. The circuit needs to be checked by a competent person belonging to a competent persons ...
by Chris Langham
Mon Mar 19, 2007 8:34 am
Forum: Electrics Forum
Topic: Ceiling wirng in bathroom
Replies: 1
Views: 3255

You have a loop in system by the sound of it. The reds taped together are the phase in/out and the one marked is the switch link. This is the non harmonised wiring system. You are best advised to get a Part P registered person (NAPIT) to do the work for you as it is located in a special location. Th...
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