Topic VDI 4707-1 EW Sept. 2013 ISO/DIS 25745

Topic
Measuring procedures /
(raw) data collection
VDI 4707-1
§ 4.4: “[…] Details on measuring
procedures are given in ISO 25745-1. […]”
EW Sept. 2013 ISO/DIS 25745-2 Simplified
Three types of data: know data, measured
data, and estimated data
Accuracy of
measurements
ISO 25745-1, §4.1.2: “The measured value
shall have accuracy of at least than +/10%”
§ 5: “[…], there may be deviations of up to
+/- 20% as a result of scatter and slight
differences in settings. […]”
5 categories (from very low, low, medium,
high to very high) based on average travel /
standby time
ISO 25745-1, §4.1.2: “The measured value
shall have accuracy of at least than +/10%”
No indications given
Accuracy of calculations
Usage categories
Running / travel energy
consumption of ISO
25745-1 reference cycle
(Wh)
Running energy
consumption of the
short cycle1 (Wh)
Considered for energy demand calculation
5 categories from very low, low, medium,
high to very high (usage category 6
“extremely high” not considered because
only likely to arise in extreme
circumstances) based on number of trips
per day
Considered for energy demand calculation
Not considered
Not considered
One way travel distance
of the short cycle (m)
Not considered
Not considered
Start/stop energy
consumption for each
trip2 (Wh)
Not explicitly considered
Not explicitly considered
1
ISO/DIS 25745-2 Full
§ 4: “[…] can be obtained using the energy
measurement methodologies as specified
in Part 1 of this standard or by calculation
or simulation. […]”
ISO 25745-1, §4.1.2: “The measured value
shall have accuracy of at least than +/10%”
No indications given
6 categories (from very low, low, medium,
high, very high to extremely high) based on
number of trips per day
Considered for energy demand calculation
(average running energy per metre), but
can be skipped if no. of stops does not
allow a short cycle measurement to be
made
Considered for energy demand calculation
(average running energy per metre), but
can be skipped if no. of stops does not
allow a short cycle measurement to be
made
Considered for energy demand calculation
(running energy of an average cycle3), but
can be skipped if no. of stops does not
Considered for energy demand calculation
Cycle during which the empty car is run for a travel distance of between one quarter to half of travel height with the travel distance centred around the mid-point of the shaft and back to
the starting point over a sufficient distance for the lift car to reach stable rated speed in both directions.
Standby power
Considered for energy demand calculation
consumption after 5
minutes of lift inactivity
(W)
Standby power
Not considered
consumption after 30
minutes of lift inactivity
(W)
Idle power consumption4 Not considered for energy demand
calculation
Acceleration (m/s2) and Not considered for energy demand
jerk (m/s3)
calculation
2
Considered for energy demand calculation
allow a short cycle measurement to be
made
Considered for energy demand calculation
Not considered
Considered for energy demand calculation
(daily non-running (idle/standby))
Considered for energy demand calculation
Considered for energy demand calculation
Considered for energy demand calculation.
Can be measured according to ISO 18738-1:2012 “Measurement of ride quality - Part 1:
Lifts (elevators)”, clause 5.2 “Acceleration and deceleration”, and 5.3 “Jerk” or estimated
using ELEVATE 8 Manual, Elevator Data, Table 8.3:
The start/stop energy consumption includes the energy consumed to accelerate a lift up to rated speed, decelerate it from rated speed level at the destination landing, to pen and close its
doors and the idle energy used whilst standing at the landings.
3
Average cycle = Cycle of one up and one down trip each covering the average travel distance of the target installation.
4
Measured when lift is stationary at a floor after door operations have ceased and before standby mode is entered.
Average travel distance
§ 4.8: 50% of travel height (FH/2)
Note: “EW1309 ISO/DIS Simplified“ does not consider Usage Category 6
Correction for empty car
measurement (average
load and
counterbalancing load
correction factor)
Note: “EW1309 ISO/DIS Simplified“ does not consider Usage Category 6
Time for the opening,
opened and closing
times of the lift doors at
the landing(s)
No explicit consideration for energy
demand calculation
Time to travel the
average distance
No explicit consideration for energy
demand calculation
Considered for energy demand calculation.
Can be measured or estimated using ELEVATE 8 Manual, Elevator Data, Table 8.1:
[….]

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