For use in, or in association with, boilers with a maximum pressure rating of 2000 kPa (20 bar), for household and similar use.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 1<\/td>\n | BRITISH STANDARD <\/td>\n<\/tr>\n | ||||||
| 2<\/td>\n | Committees responsible for this British\ufffdStandard <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | Contents <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | Scope and normative references This part of International Standard IEC\ufffd730 applies to automatic electrical water level sensing c… This part\ufffd2\ufffdapplies to controls with a rated voltage not exceeding 660\ufffdV and a rated current not … This part\ufffd2\ufffddoes not take into account the response value of an automatic action of a control, if… This part\ufffd2\ufffdapplies also to controls incorporating electronic devices, requirements for which are… Normative references <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | Definitions Definitions of types of control according to purpose water level cut-out water level limiter boiler water feed control General requirements General notes on tests Conditions of test Instructions for test Rating <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | Classification According to their purpose According to features of automatic action Information Table 7.2 Protection against electric shock Provision for protective earthing Terminals and terminations <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | Constructional requirements Actions Construction requirements relating to operating mechanism Moisture and dust resistance Electric strength and insulation resistance Electric strength of probes Heating Manufacturing deviation and drift <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | If a response time has been declared, the response time of the sample shall be initially measured at Environmental stress Endurance Test for particular purpose controls <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | Mechanical strength Those parts of a water level sensing control which are exposed to boiler pressure shall be capabl… Threaded parts and connections Creepage distances, clearances and distances through insulation Resistance to heat, fire and tracking Resistance to corrosion Radio interference suppression Components <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | Normal operation Operation with mains-borne perturbations, magnetic, and electromagnetic disturbances Abnormal operation Guidance on the use of electronic disconnection <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | Annex H Requirements for electronic controls Requirements for electronic controls Information Constructional requirements Controls using software Operation with mains-borne perturbations, magnetic and electromagnetic disturbances <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | Abnormal operation <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | Annex AA Number of cycles for independently mounted controls <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | Annex ZB (normative) Other international publications quoted in this standard with the references of the r… <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Automatic electrical controls for household and similar use – Particular requirements for automatic electrical water level sensing controls of the float or electrode-sensor type used in boiler applications<\/b><\/p>\n |