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Posted By Topic: Heated towel rails

Glenh
Mar 30 2018 09:26

I have 3 newtec heated towel rails and expressed my concern on how hot these one are I have build many homes and never a prior complaint. I had the newtec rep out to check how hot these get. One was 61deg, one 64degs the last one 70 degrees given that hot water can not exceed 55 degrees by regulation surely these are excessive. Rep said no!!! So it’s ok to give your small child 3rd degree burns I said. Your thoughts.
   

AlecK
Mar 30 2018 12:26

clause 4.2.3 of "3000" covers max permitted temp of fittings in general

There will also be a Schedule 4 Standard for HTRs, which will cover them in particular
   

mazdaman
Mar 30 2018 21:01

Looks like 70 degrees is the maximum in this case:

4.2.3 Protection against burns

An accessible part of electrical equipment within arm’s reach shall not attain a temperature in excess of the appropriate limit stated in Table 4.1.

Each accessible part of the electrical installation that may, even for a short period, attain a temperature exceeding the appropriate limit in Table 4.1 under normal load conditions shall be guarded so as to prevent accidental contact.

Exceptions:
1 This requirement need not apply to electrical equipment that complies with an appropriate Standard that specifies a limiting temperature.
2 This requirement does not apply to items such as lamps.

TABLE 4.1
TEMPERATURE LIMITS IN NORMAL SERVICE FOR PARTS OF ELECTRICAL EQUIPMENT WITHIN ARM'S REACH

Accessible part Material of accessible surface: Maximum temperature oC

Hand-held means of operation: Metallic 55, Non-metallic 65

Parts intended to be touched but not hand-held: Metallic 70, Non-metallic 80

Parts that need not be touched for normal operation: Metallic 80, Non-metallic 90